$508+ Cheap flights from London (LON) to San Francisco (SFO)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/1. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SFO
Oct 28 — Nov 41
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from London to San Francisco with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from London to San Francisco are usually found in February or November, booked 74 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday
Cheap flight deals from London to San Francisco
Cheapest
Best
Last-minute
One-way
Cheapest flights from London to San FranciscoExplore the most affordable flight options available from London to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 28, 2026.
Explore the most affordable flight options available from London to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 28, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/38:05 pm -
1 stop28h 30m
Sat 10/1012:55 pm -
Nonstop10h 30m
Deal found 9/27![Multiple Airlines logo]()
$520
This Trip.com deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/149:25 am -
1 stop15h 10m
Tue 1/127:25 pm -
1 stop14h 25m
Deal found 9/27![SWISS logo]()
$520
This Booking.com deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/139:15 am -
1 stop14h 05m
Mon 1/117:25 pm -
1 stop13h 40m
Deal found 9/27![Multiple Airlines logo]()
$520
This Expedia deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/221:00 pm -
Nonstop11h 00m
Thu 10/291:50 pm -
Nonstop10h 35m
Deal found 9/24![Lufthansa logo]()
$521
This TravelUp deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/141:00 pm -
Nonstop11h 00m
Thu 10/224:45 pm -
Nonstop10h 25m
Deal found 9/27![Multiple Airlines logo]()
$522
This SWISS deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/87:00 am -
2 stops17h 15m
Sun 10/187:35 pm -
1 stop14h 15m
Deal found 9/25![SWISS logo]()
$523
This SWISS deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/77:00 am -
2 stops17h 15m
Sun 10/117:35 pm -
1 stop14h 15m
Deal found 9/27![SWISS logo]()
$524
This Booking.com deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/279:50 am -
1 stop18h 20m
Mon 1/117:25 pm -
1 stop13h 40m
Deal found 9/23![Multiple Airlines logo]()
$524
This ChecknFly deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure ChecknFly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/267:30 am -
1 stop16h 35m
Sat 11/712:50 pm -
Nonstop10h 35m
Deal found 9/27![Lufthansa logo]()
$525
This TravelUp deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/110:35 am -
Nonstop11h 00m
Wed 10/1412:55 pm -
Nonstop10h 30m
Deal found 9/23![Austrian Airlines logo]()
$526
This SWISS deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/208:45 am -
1 stop15h 50m
Sun 10/258:25 pm -
2 stops18h 00m
Deal found 9/23![SWISS logo]()
$527
This SWISS deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/96:00 am -
1 stop18h 30m
Mon 11/162:20 pm -
2 stops20h 55m
Deal found 9/25![SWISS logo]()
$528
Best flights from London to San FranciscoDiscover carefully curated flight deals from London to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 28, 2026.
Discover carefully curated flight deals from London to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 28, 2026.
This SWISS deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/127:00 am -
2 stops17h 35m
Mon 10/197:35 pm -
1 stop14h 15m
Deal found 9/27![SWISS logo]()
$524
This Lufthansa deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1010:35 am -
Nonstop11h 00m
Sat 10/174:45 pm -
Nonstop10h 25m
Deal found 9/25![Multiple Airlines logo]()
$533
This United Airlines deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2010:05 am -
Nonstop11h 15m
Sun 11/224:25 pm -
1 stop13h 05m
Deal found 9/27![United Airlines logo]()
$534
This Lufthansa deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/301:45 pm -
Nonstop11h 10m
Wed 1/2012:50 pm -
Nonstop10h 35m
Deal found 9/23![Lufthansa logo]()
$537
This British Airways deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/276:50 am -
1 stop16h 45m
Wed 1/205:20 pm -
1 stop16h 10m
Deal found 9/23![British Airways logo]()
$608
This Delta deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/611:35 am -
2 stops18h 40m
Wed 11/185:50 am -
2 stops17h 00m
Deal found 9/27![Delta logo]()
$619
This Virgin Atlantic deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/24:45 pm -
1 stop28h 10m
Sat 11/1411:44 am -
2 stops20h 01m
Deal found 9/26![Virgin Atlantic logo]()
$619
This TAP AIR PORTUGAL deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/209:15 pm -
2 stops25h 20m
Sat 10/315:35 pm -
2 stops33h 30m
Deal found 9/23![TAP AIR PORTUGAL logo]()
$805
This Turkish Airlines deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/210:55 am -
1 stop37h 35m
Thu 1/146:35 pm -
1 stop31h 20m
Deal found 9/24![Turkish Airlines logo]()
$1,047
This SWISS deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/209:00 am -
1 stop15h 30m
Fri 11/272:20 pm -
2 stops19h 30m
Deal found 9/27![SWISS logo]()
$528
This Lufthansa deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/181:45 pm -
Nonstop11h 10m
Wed 11/2512:50 pm -
Nonstop10h 35m
Deal found 9/25![Multiple Airlines logo]()
$533
This United Airlines deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/31:00 pm -
Nonstop10h 55m
Fri 10/1612:28 pm -
1 stop13h 42m
Deal found 9/26![United Airlines logo]()
$537
This United Airlines deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2512:05 pm -
1 stop26h 23m
Sun 11/18:23 pm -
1 stop29h 17m
Deal found 9/25![United Airlines logo]()
$538
This SWISS deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/87:00 am -
2 stops17h 15m
Sun 10/187:35 pm -
2 stops17h 55m
Deal found 9/25![SWISS logo]()
$556
This Delta deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2310:00 am -
2 stops22h 06m
Wed 12/306:20 am -
2 stops17h 50m
Deal found 9/27![Delta logo]()
$632
This Virgin Atlantic deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/98:40 am -
2 stops19h 52m
Mon 11/166:00 am -
2 stops17h 15m
Deal found 9/27![Virgin Atlantic logo]()
$633
This United Airlines deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/110:35 am -
Nonstop11h 00m
Fri 10/94:45 pm -
Nonstop10h 25m
Deal found 9/24![United Airlines logo]()
$611
This TAP AIR PORTUGAL deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/209:15 pm -
2 stops49h 15m
Fri 11/67:15 pm -
2 stops29h 05m
Deal found 9/27![TAP AIR PORTUGAL logo]()
$831
This Mytrip deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/196:05 pm -
2 stops28h 25m
Fri 10/234:30 pm -
2 stops23h 20m
Deal found 9/25![Multiple Airlines logo]()
$760
This United Airlines deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/179:00 am -
2 stops32h 19m
Sun 10/2511:15 pm -
1 stop14h 20m
Deal found 9/24![United Airlines logo]()
$631
This SWISS deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/247:30 pm -
2 stops29h 00m
Wed 3/32:20 pm -
2 stops19h 30m
Deal found 9/23![SWISS logo]()
$701
This Virgin Atlantic deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/145:50 pm -
1 stop25h 55m
Wed 10/213:30 pm -
2 stops17h 50m
Deal found 9/26![Virgin Atlantic logo]()
$798
This Delta deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2110:00 am -
2 stops18h 18m
Thu 10/292:50 pm -
1 stop18h 45m
Deal found 9/27![Delta logo]()
$804
This TAP AIR PORTUGAL deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/39:35 am -
2 stops62h 30m
Sat 2/64:35 pm -
1 stop33h 15m
Deal found 9/27![TAP AIR PORTUGAL logo]()
$835
This Kiwi.com deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/127:45 am -
1 stop15h 50m
Fri 1/225:20 pm -
1 stop12h 45m
Deal found 9/27![Multiple Airlines logo]()
$775
This TAP AIR PORTUGAL deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/149:15 pm -
2 stops25h 15m
Wed 10/214:35 pm -
2 stops34h 45m
Deal found 9/26![TAP AIR PORTUGAL logo]()
$851
This Turkish Airlines deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/210:55 am -
1 stop38h 35m
Mon 11/166:35 pm -
1 stop31h 20m
Deal found 9/24![Turkish Airlines logo]()
$1,047
This Virgin Atlantic deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2710:00 am -
2 stops29h 59m
Mon 1/116:15 am -
2 stops18h 45m
Deal found 9/23![Virgin Atlantic logo]()
$866
This Booking.com deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:15 am -
2 stops17h 06m
Wed 10/2111:35 am -
2 stops17h 00m
Deal found 9/26![Multiple Airlines logo]()
$794
This SWISS deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/106:55 am -
2 stops17h 35m
Fri 1/227:25 pm -
2 stops17h 10m
Deal found 9/27![SWISS logo]()
$838
Last-minute flights from London to San FranciscoDiscover last-minute flight deals from London to San Francisco. Data last updated September 28, 2026 and is based on user searches.
Discover last-minute flight deals from London to San Francisco. Data last updated September 28, 2026 and is based on user searches.
This TravelUp deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/110:35 am -
Nonstop11h 00m
Wed 10/1412:55 pm -
Nonstop10h 30m
Deal found 9/23![Austrian Airlines logo]()
$526
This Kiwi.com deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/38:05 pm -
1 stop28h 30m
Sat 10/1012:55 pm -
Nonstop10h 30m
Deal found 9/27![Multiple Airlines logo]()
$520
This Globehunters deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Globehunters is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/310:35 am -
Nonstop11h 00m
Sat 10/173:00 pm -
1 stop36h 55m
Deal found 9/25![Lufthansa logo]()
$528
This SWISS deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/77:00 am -
2 stops17h 15m
Sun 10/117:35 pm -
1 stop14h 15m
Deal found 9/27![SWISS logo]()
$524
This SWISS deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/87:00 am -
2 stops17h 15m
Sun 10/117:35 pm -
1 stop14h 15m
Deal found 9/25![SWISS logo]()
$523
This Booking.com deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/139:15 am -
1 stop14h 05m
Mon 1/117:25 pm -
1 stop13h 40m
Deal found 9/27![Multiple Airlines logo]()
$520
This Trip.com deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/149:25 am -
1 stop15h 10m
Tue 1/127:25 pm -
1 stop14h 25m
Deal found 9/27![SWISS logo]()
$520
This TravelUp deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/141:00 pm -
Nonstop11h 00m
Thu 10/224:45 pm -
Nonstop10h 25m
Deal found 9/27![Multiple Airlines logo]()
$522
This SWISS deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/208:45 am -
1 stop15h 50m
Sun 10/258:25 pm -
2 stops18h 00m
Deal found 9/23![SWISS logo]()
$527
This Expedia deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/221:00 pm -
Nonstop11h 00m
Thu 10/291:50 pm -
Nonstop10h 35m
Deal found 9/24![Lufthansa logo]()
$521
This ChecknFly deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure ChecknFly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/267:30 am -
1 stop16h 35m
Sat 11/712:50 pm -
Nonstop10h 35m
Deal found 9/27![Lufthansa logo]()
$525
This Booking.com deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/279:50 am -
1 stop18h 20m
Mon 1/117:25 pm -
1 stop13h 40m
Deal found 9/23![Multiple Airlines logo]()
$524
One-way flights from London to San FranciscoSearch for one-way flight options from London to San Francisco. Find affordable one-way fares based on user searches. Data last updated September 28, 2026.
Search for one-way flight options from London to San Francisco. Find affordable one-way fares based on user searches. Data last updated September 28, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/17:00 am -
3 stops39h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![Multiple Airlines logo]()
$508
This Kiwi.com deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/78:45 am -
1 stop18h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![Lufthansa logo]()
$508
This Kiwi.com deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/227:00 am -
3 stops36h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![Multiple Airlines logo]()
$508
This KAYAK deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/282:35 pm -
1 stop16h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/27![Finnair logo]()
$509
This Mytrip deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/67:00 am -
1 stop21h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/23![Multiple Airlines logo]()
$509
This Kiwi.com deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/57:25 am -
2 stops58h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![Multiple Airlines logo]()
$509
This Expedia deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/99:50 am -
2 stops17h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/23![Lufthansa logo]()
$509
This Kissandfly.com deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/62:45 pm -
3 stops32h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/27![Multiple Airlines logo]()
$510
This Iberia deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2211:45 am -
Nonstop11h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Iberia logo]()
$510
This Kiwi.com deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/203:25 pm -
2 stops31h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/26![Multiple Airlines logo]()
$510
This Kiwi.com deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/43:05 pm -
3 stops55h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![Multiple Airlines logo]()
$511
This Air Canada deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/296:00 am -
2 stops23h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Air Canada logo]()
$511
Find flight deals from London to San Francisco
Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to San Francisco (SFO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $520 (Kiwi.com) |
One-way from | $508 (Kiwi.com) |
Popular in | December |
Cheapest in | February |
Average price | $692 |
Good round-trip deal | $547 or less |
Good one-way deal | $549 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from London to San Francisco that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 28, 2026.
Use the filters below to find and compare flights from London to San Francisco that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
LondonSan Francisco
LGW London Gatwick - SFO San Francisco
LGWSFO
London Gatwick
Thu 3/18
8:30 am-5:30 pm
1 stop16h 00m
San Francisco
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$510
LondonSan Francisco
LHR London Heathrow - SFO San Francisco
LHRSFO
London Heathrow
Fri 12/25
7:30 am-10:17 pm
2 stops22h 47m
San Francisco
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$514
LondonSan Francisco
LHR London Heathrow - SFO San Francisco
LHRSFO
London Heathrow
Sat 10/31
8:05 am-10:25 pm
1 stop21h 20m
San Francisco
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$515
LondonSan Francisco
LTN London Luton - SFO San Francisco
LTNSFO
London Luton
Tue 10/20
2:45 pm-2:30 pm
2 stops55h 45m
San Francisco
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$523
LondonSan Francisco
LHR London Heathrow - SFO San Francisco
LHRSFO
London Heathrow
Mon 10/12
7:00 am-4:35 pm
2 stops17h 35m
San Francisco
Mon 10/19
7:35 pm-5:50 pm
1 stop14h 15m
$524
LondonSan Francisco
LGW London Gatwick - SFO San Francisco
LGWSFO
London Gatwick
Fri 11/20
9:00 am-4:30 pm
1 stop15h 30m
San Francisco
Fri 11/27
2:20 pm-5:50 pm
2 stops19h 30m
$528
LondonSan Francisco
LCY London City - SFO San Francisco
LCYSFO
London City
Fri 3/12
9:50 am-4:05 pm
1 stop14h 15m
San Francisco
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$531
LondonSan Francisco
LHR London Heathrow - SFO San Francisco
LHRSFO
London Heathrow
Sun 12/27
1:10 pm-7:14 pm
1 stop38h 04m
San Francisco
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$531
LondonSan Francisco
LHR London Heathrow - SFO San Francisco
LHRSFO
London Heathrow
Sat 10/10
10:35 am-1:35 pm
Nonstop11h 00m
San Francisco
Sat 10/17
4:45 pm-11:10 am
Nonstop10h 25m
$533
LondonSan Francisco
LHR London Heathrow - SFO San Francisco
LHRSFO
London Heathrow
Wed 11/18
1:45 pm-4:55 pm
Nonstop11h 10m
San Francisco
Wed 11/25
12:50 pm-7:25 am
Nonstop10h 35m
$533
Showing 1-10 of 60 resultsSorted by cheapest first
Compare providers for flights from London to San Francisco
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from London to San Francisco in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on London-San Francisco flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on London-San Francisco flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from London-San Francisco flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on London-San Francisco flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for London-San Francisco flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from London to San Francisco
Have a flexible travel schedule? Discover the best time to fly to San Francisco from London with our price prediction graph.
LON-SFO
LHR-SFO
LGW-SFO
LCY-SFO
STN-SFO
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from London to San Francisco
LON-SFO
LHR-SFO
LGW-SFO
LCY-SFO
STN-SFO
What is the cheapest month to book a flight from London to San Francisco?
Currently, February is the cheapest month in which you can book a flight from London to San Francisco (average of $598). Flying from London to San Francisco in December is currently the most expensive (average of $857). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from LON to SFO?
Find hourly flight availability from London to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 28, 2026.
When flying from London to San Francisco, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Weekly flight availability from London to San Francisco
Explore weekly flight availability from London to San Francisco. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated September 28, 2026.
The most flights from LON to SFO are scheduled on a Monday (38 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (32 on average).
How much does it cost to fly round-trip from London to San Francisco?
Airfare is below average for this route at the moment.
London to San Francisco flights typically cost between $574 and $808 in October.The cheapest round-trip price found within the last 5 days was $520 on Multiple Airlines (Oct 3-Oct 10).
What’s the top layover airport for flights from London to San Francisco?
Share of 1-stop round-trip flights from London to San Francisco chosen by Cheapflights users in the past 12 months, using the same layover each way.
Dublin (DUB) – chosen by Cheapflights users on 44% of 1-stop itineraries from London to San Francisco on Cheapflights.
What’s the cheapest layover airport for flights from London to San Francisco?
Average round-trip fare for 1-stop flights from London to San Francisco, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Copenhagen (CPH) is the most affordable 1-stop option, with an average round-trip price of $520.
What’s the fastest layover option from London to San Francisco?
Shortest average travel time for 1-stop one-way flights from London to San Francisco, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Dublin (DUB) have the shortest average one-way travel time for 1-stop routes: 13h 55m.
Which airport typically offers the quickest layover for flights from London to San Francisco?
Average layover duration for 1-stop one-way flights from London to San Francisco, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Dublin (DUB) offer the fastest connection on this route, with an average layover time of 1h 40m.
How often are flights from London to San Francisco delayed?
About 13% of weekly flights between London and San Francisco have experienced delays in the past year, with the average delay time being 144 minutes.
What is the most punctual flight time for London to San Francisco flights?
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Friday tends to have the lowest number of delays on this route, whereas Wednesday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on London to San Francisco flights?
Over the last year, United Airlines have had the lowest number of delays on this route, with just 11% of flights being delayed.
How far ahead should I book a flight from London to San Francisco?
The price you pay for your flight from London to San Francisco may vary depending on when you book. For the best chance of a lower fare, look to book 22 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
The best insider tips for London to San Francisco flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your London to San Francisco trip
Our travel experts
Reviews of airlines servicing San Francisco
Get insights into the airlines that provide service to San Francisco. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Francisco. Reviews last updated September 28, 2026.
See what other customers who have flown with KLM,United Airlines, andVirgin Atlantic from London to San Francisco have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
7.8
Comfort
7.7
Overall
7.8
Entertainment
7.2
Food
7.3
Crew
8.4
Reviews
1 / 20
8.0
ExcellentKushal,Sep 2026
QRO - ATL
Boarding
7.8
Comfort
7.7
Overall
7.8
Entertainment
7.2
Food
7.3
Crew
8.4
Reviews
1 / 20
8.0
ExcellentKushal,Sep 2026
QRO - ATL
Boarding
7.8
Comfort
7.7
Overall
7.8
Entertainment
7.2
Food
7.3
Crew
8.4
Reviews
1 / 20
8.0
ExcellentKushal,Sep 2026
QRO - ATL
Boarding
7.8
Comfort
7.7
Overall
7.8
Entertainment
7.2
Food
7.3
Crew
8.4
Reviews
1 / 20
8.0
ExcellentKushal,Sep 2026
QRO - ATL
Boarding
7.8
Comfort
7.7
Overall
7.8
Entertainment
7.2
Food
7.3
Crew
8.4
Reviews
1 / 20
8.0
ExcellentKushal,Sep 2026
QRO - ATL
Boarding
7.8
Comfort
7.7
Overall
7.8
Entertainment
7.2
Food
7.3
Crew
8.4
Reviews
1 / 20
8.0
ExcellentKushal,Sep 2026
QRO - ATL
Related info for your journey
Find useful and relevant information for your journey from London to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near San Francisco?
Book flights to San Francisco if you plan to visit one of these locationsSouth San Francisco
Santa Clara
Santa Cruz
Walnut Creek
Emeryville
Burlingame
Rancho Cordova
San Bruno
Roseville
Hayward
Cupertino
Newark
Fairfield
San Ramon
Redwood City
Manteca
Vallejo
San Carlos
Turlock
Davis
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from London
Popular flights
San Francisco flight routes
Alternative routes for London to San Francisco
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to San Francisco by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from London to San Francisco by cabin class
Find flights from London to San Francisco, based on your preferred cabin class, be it economy, premium economy, business, or first class.
London and San Francisco flights
Browse other London and San Francisco flight options. Last updated on September 28, 2026.
Other flights from London
Browse through other flights departing from London. Flights are based on user searches made on Cheapflights and were last updated on September 28, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to San Francisco
Explore flights to San Francisco departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 28, 2026.
Top 10 airlines flying from London to San Francisco
Discover the top 10 airlines that operate flights from London to San Francisco. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 28, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$449 | Average$500 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$520 | Average$848 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$526 | Average$770 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$538 | Average$715 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$543 | Average$750 | FlexibilityNo cancel fee | On-time78% | |
| Cheapest$561 | Average$886 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$572 | Average$870 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$589 | Average$843 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$598 | Average$794 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$614 | Average$787 | FlexibilityNo cancel fee | On-time77% |