$262+ Cheap flights from San Diego (SAN) to Heathrow (LHR)
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 12/11. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — LHR
Oct 17 — Oct 241
Round-trip
1 adult, Economy
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Find cheap flights from San Diego to Heathrow 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 San Diego to London Heathrow are usually found in February or January, booked 31 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday
Cheap flight deals from San Diego to Heathrow
Cheapest
Best
Last-minute
One-way
Cheapest flights from San Diego to HeathrowExplore the most affordable flight options available from San Diego to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2026.
Explore the most affordable flight options available from San Diego to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2026.
This FlightHub deal was found by Cheapflights users on 9/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1911:13 am -
1 stop13h 02m
Wed 11/2512:45 pm -
Nonstop11h 25m
Deal found 9/16![British Airways logo]()
$945
This Mytrip deal was found by Cheapflights users on 9/15. 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.
Wed 10/144:50 pm -
3 stops29h 40m
Sun 10/251:25 pm -
3 stops34h 00m
Deal found 9/15![Multiple Airlines logo]()
$946
This JetBlue deal was found by Cheapflights users on 9/15. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/289:30 pm -
1 stop15h 15m
Fri 10/211:55 am -
1 stop16h 06m
Deal found 9/15![JetBlue logo]()
$947
This Alaska Airlines deal was found by Cheapflights users on 9/16. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/216:15 am -
1 stop22h 05m
Wed 11/252:45 pm -
1 stop15h 52m
Deal found 9/16![Alaska Airlines logo]()
$948
This Air Canada deal was found by Cheapflights users on 9/17. 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.
Wed 11/1812:55 pm -
1 stop14h 25m
Sun 11/296:00 pm -
1 stop26h 00m
Deal found 9/17![Air Canada logo]()
$949
This United Airlines deal was found by Cheapflights users on 9/15. 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 11/2012:55 pm -
1 stop14h 25m
Wed 11/256:00 pm -
1 stop26h 00m
Deal found 9/15![United Airlines logo]()
$950
This Travelocity deal was found by Cheapflights users on 9/17. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/86:00 pm -
Nonstop10h 40m
Mon 11/301:50 pm -
1 stop26h 43m
Deal found 9/17![Iberia logo]()
$951
This Cheapflightsfares deal was found by Cheapflights users on 9/15. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/46:15 am -
2 stops23h 40m
Sun 10/1810:00 pm -
2 stops31h 44m
Deal found 9/15![Aer Lingus logo]()
$952
This Alaska Airlines deal was found by Cheapflights users on 9/16. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/219:15 am -
1 stop19h 05m
Thu 11/262:45 pm -
1 stop26h 03m
Deal found 9/16![Alaska Airlines logo]()
$953
This Air Canada deal was found by Cheapflights users on 9/16. 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 11/2011:20 am -
2 stops16h 00m
Fri 11/276:00 pm -
2 stops29h 55m
Deal found 9/16![Multiple Airlines logo]()
$954
This Trip.com deal was found by Cheapflights users on 9/14. 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.
Thu 10/227:40 pm -
Nonstop10h 40m
Mon 11/212:45 pm -
Nonstop11h 25m
Deal found 9/14![British Airways logo]()
$955
This British Airways deal was found by Cheapflights users on 9/14. 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.
Sun 11/156:00 pm -
Nonstop10h 40m
Wed 12/212:45 pm -
Nonstop11h 25m
Deal found 9/14![British Airways logo]()
$956
Best flights from San Diego to HeathrowDiscover carefully curated flight deals from San Diego to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 17, 2026.
Discover carefully curated flight deals from San Diego to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 17, 2026.
This Delta deal was found by Cheapflights users on 9/15. 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.
Sun 10/116:15 am -
2 stops16h 55m
Sun 10/189:55 am -
1 stop21h 47m
Deal found 9/15![Delta logo]()
$974
This United Airlines deal was found by Cheapflights users on 9/13. 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.
Wed 12/237:10 pm -
1 stop30h 30m
Tue 12/296:35 am -
1 stop17h 10m
Deal found 9/13![United Airlines logo]()
$1,053
This Scandinavian Airlines deal was found by Cheapflights users on 9/14. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2812:38 pm -
2 stops22h 52m
Sat 11/76:40 am -
3 stops24h 03m
Deal found 9/14![Scandinavian Airlines logo]()
$1,086
This TAP AIR PORTUGAL deal was found by Cheapflights users on 9/12. 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 2/97:10 am -
3 stops26h 20m
Tue 2/238:15 am -
2 stops33h 18m
Deal found 9/12![TAP AIR PORTUGAL logo]()
$1,182
This SWISS deal was found by Cheapflights users on 9/13. 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 11/1810:40 am -
2 stops18h 20m
Wed 11/259:00 am -
2 stops21h 40m
Deal found 9/13![SWISS logo]()
$1,186
This Alaska Airlines deal was found by Cheapflights users on 9/13. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2810:55 am -
2 stops18h 25m
Wed 11/42:45 pm -
2 stops25h 37m
Deal found 9/13![Alaska Airlines logo]()
$1,187
This Finnair deal was found by Cheapflights users on 9/16. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/126:00 pm -
Nonstop10h 40m
Tue 11/2412:45 pm -
Nonstop11h 25m
Deal found 9/16![Finnair logo]()
$1,211
This TAP AIR PORTUGAL deal was found by Cheapflights users on 9/15. 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 11/2411:20 am -
3 stops22h 10m
Mon 11/306:30 pm -
2 stops33h 49m
Deal found 9/15![Multiple Airlines logo]()
$1,252
This Scandinavian Airlines deal was found by Cheapflights users on 9/16. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/293:00 pm -
3 stops22h 20m
Tue 12/157:05 am -
3 stops23h 51m
Deal found 9/16![Scandinavian Airlines logo]()
$1,221
This Scandinavian Airlines deal was found by Cheapflights users on 9/12. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/510:00 am -
3 stops22h 00m
Fri 2/127:05 am -
3 stops23h 50m
Deal found 9/12![Scandinavian Airlines logo]()
$1,470
This Scandinavian Airlines deal was found by Cheapflights users on 9/17. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/258:00 am -
2 stops24h 00m
Thu 1/77:05 am -
3 stops23h 50m
Deal found 9/17![Scandinavian Airlines logo]()
$1,560
Last-minute flights from San Diego to HeathrowDiscover last-minute flight deals from San Diego to Heathrow. Data last updated September 17, 2026 and is based on user searches.
Discover last-minute flight deals from San Diego to Heathrow. Data last updated September 17, 2026 and is based on user searches.
This Justfly.com deal was found by Cheapflights users on 9/13. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/227:40 pm -
Nonstop10h 40m
Thu 10/110:05 am -
1 stop13h 17m
Deal found 9/13![British Airways logo]()
$950
This Justfly.com deal was found by Cheapflights users on 9/15. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/246:15 am -
2 stops18h 50m
Tue 9/291:25 pm -
2 stops18h 00m
Deal found 9/15![Aer Lingus logo]()
$959
This lol.travel deal was found by Cheapflights users on 9/14. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/271:10 pm -
1 stop15h 05m
Tue 10/132:30 pm -
Nonstop11h 20m
Deal found 9/14![Finnair logo]()
$957
This JetBlue deal was found by Cheapflights users on 9/13. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/289:30 pm -
1 stop15h 15m
Wed 9/3011:55 am -
1 stop16h 06m
Deal found 9/13![JetBlue logo]()
$947
This Cheapflightsfares deal was found by Cheapflights users on 9/15. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/46:15 am -
2 stops23h 40m
Sun 10/1810:00 pm -
2 stops31h 44m
Deal found 9/15![Aer Lingus logo]()
$952
This Mytrip deal was found by Cheapflights users on 9/17. 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 10/56:25 am -
2 stops18h 10m
Mon 10/193:05 pm -
3 stops31h 24m
Deal found 9/17![Multiple Airlines logo]()
$961
This Finnair deal was found by Cheapflights users on 9/13. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/117:40 pm -
Nonstop10h 40m
Sun 10/258:20 am -
1 stop18h 44m
Deal found 9/13![Finnair logo]()
$956
This Mytrip deal was found by Cheapflights users on 9/15. 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.
Wed 10/144:50 pm -
3 stops29h 40m
Sun 10/251:25 pm -
3 stops34h 00m
Deal found 9/15![Multiple Airlines logo]()
$946
This American Airlines deal was found by Cheapflights users on 9/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/147:40 pm -
Nonstop10h 40m
Sun 10/189:50 am -
1 stop16h 02m
Deal found 9/14![American Airlines logo]()
$960
This Booking.com deal was found by Cheapflights users on 9/14. 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.
Fri 10/164:45 pm -
Nonstop10h 45m
Sun 10/258:20 am -
1 stop20h 26m
Deal found 9/14![British Airways logo]()
$954
This American Airlines deal was found by Cheapflights users on 9/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/207:40 pm -
Nonstop10h 40m
Mon 11/212:45 pm -
Nonstop11h 25m
Deal found 9/14![American Airlines logo]()
$949
This Trip.com deal was found by Cheapflights users on 9/14. 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.
Thu 10/227:40 pm -
Nonstop10h 40m
Mon 11/212:45 pm -
Nonstop11h 25m
Deal found 9/14![British Airways logo]()
$955
One-way flights from San Diego to HeathrowSearch for one-way flight options from San Diego to Heathrow. Find affordable one-way fares based on user searches. Data last updated September 17, 2026.
Search for one-way flight options from San Diego to Heathrow. Find affordable one-way fares based on user searches. Data last updated September 17, 2026.
This Trip.com deal was found by Cheapflights users on 9/14. 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.
Fri 12/111:30 pm -
1 stop15h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![WestJet logo]()
$262
This Kiwi.com deal was found by Cheapflights users on 9/17. 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 11/187:33 pm -
2 stops33h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Multiple Airlines logo]()
$297
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 1/123:09 pm -
2 stops37h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Multiple Airlines logo]()
$298
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 11/177:33 pm -
2 stops33h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Multiple Airlines logo]()
$304
This Kiwi.com deal was found by Cheapflights users on 9/14. 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 11/117:33 pm -
2 stops33h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Multiple Airlines logo]()
$307
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 11/211:02 pm -
2 stops39h 48m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Multiple Airlines logo]()
$309
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 1/113:09 pm -
2 stops37h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Multiple Airlines logo]()
$311
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 11/197:33 pm -
2 stops33h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Multiple Airlines logo]()
$312
Find flight deals from San Diego to Heathrow
Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) to Heathrow (LHR). 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 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $945 (FlightHub) |
One-way from | $262 (Trip.com) |
Popular in | June |
Cheapest in | February |
Average price | $953 |
Good round-trip deal | $1,010 or less |
Good one-way deal | $456 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from San Diego to Heathrow 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 17, 2026.
Use the filters below to find and compare flights from San Diego to London Heathrow Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San DiegoLondon
SAN San Diego - LHR London Heathrow
SANLHR
San Diego
Mon 11/16
9:40 pm-9:40 pm
1 stop16h 00m
London Heathrow
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$329
San DiegoLondon
SAN San Diego - LHR London Heathrow
SANLHR
San Diego
Mon 3/15
10:44 am-9:30 am
1 stop15h 46m
London Heathrow
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$329
San DiegoLondon
SAN San Diego - LHR London Heathrow
SANLHR
San Diego
Tue 3/16
10:44 am-9:30 am
1 stop15h 46m
London Heathrow
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$329
San DiegoLondon
SAN San Diego - LHR London Heathrow
SANLHR
San Diego
Sat 3/13
9:05 pm-8:45 pm
1 stop15h 40m
London Heathrow
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$329
San DiegoLondon
SAN San Diego - LHR London Heathrow
SANLHR
San Diego
Sun 1/10
2:00 pm-11:50 am
1 stop13h 50m
London Heathrow
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$330
Quickest round-trip
San DiegoLondon
SAN San Diego - LHR London Heathrow
SANLHR
San Diego
Mon 3/15
7:00 pm-12:40 pm
Nonstop10h 40m
London Heathrow
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$330
San DiegoLondon
SAN San Diego - LHR London Heathrow
SANLHR
San Diego
Sun 3/14
5:00 pm-1:30 pm
1 stop13h 30m
London Heathrow
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$334
San DiegoLondon
SAN San Diego - LHR London Heathrow
SANLHR
San Diego
Sat 3/13
6:00 pm-12:40 pm
Nonstop10h 40m
London Heathrow
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$380
San DiegoLondon
SAN San Diego - LHR London Heathrow
SANLHR
San Diego
Thu 10/1
9:30 pm-8:45 pm
1 stop15h 15m
London Heathrow
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$439
San DiegoLondon
SAN San Diego - LHR London Heathrow
SANLHR
San Diego
Mon 12/14
6:00 pm-12:40 pm
Nonstop10h 40m
London Heathrow
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
$462
Showing 1-10 of 23 resultsSorted by cheapest first
Compare providers for flights from San Diego to Heathrow
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 San Diego to Heathrow in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*1 star | |
| Price Accuracy- | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on San Diego-London Heathrow Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Diego-London Heathrow Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Diego-London Heathrow Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on San Diego-London Heathrow Airport 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 San Diego-London Heathrow Airport 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 San Diego to Heathrow
Have a flexible travel schedule? Discover the best time to fly to Heathrow from San Diego with our price prediction graph.
SAN-LHR
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 San Diego to London Heathrow Airport
Prices
Airlines
How far ahead should I book a flight from San Diego to London Heathrow Airport?
The price you pay for your flight from San Diego to London Heathrow Airport may vary depending on when you book. For the best chance of a lower fare, look to book 30 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from San Diego to London Heathrow Airport?
Currently, February is the cheapest month in which you can book a flight from San Diego to London Heathrow Airport (average of $792). Flying from San Diego to London Heathrow Airport in June is currently the most expensive (average of $1,496). 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 SAN to LHR?
Find hourly flight availability from San Diego to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 17, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from San Diego to London Heathrow Airport as you normally would.
The best insider tips for San Diego to London Heathrow Airport 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 San Diego to London Heathrow Airport trip
Our travel experts
Reviews of airlines servicing Heathrow
Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated September 17, 2026.
Read reviews from past customers who have flown Delta,United Airlines, andVirgin Atlantic from San Diego to London Heathrow Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.8
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Food
7.2
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Overall
7.8
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Food
7.2
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Overall
7.8
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Food
7.2
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Overall
7.8
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Food
7.2
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Overall
7.8
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Food
7.2
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Overall
7.8
Boarding
8.1
Comfort
7.8
Entertainment
7.8
Food
7.2
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Related info for your journey
Find useful and relevant information for your journey from San Diego to Heathrow. 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 London Heathrow Airport?
Book flights to London Heathrow Airport if you plan to visit one of these locationsIlford
Dorking
Gatwick
Hounslow
Harrow
Wembley
Southend-on-Sea
Basingstoke
Watford
Northampton
Dartford
Winchester
Croydon
Chipping Norton
Kingston upon Thames
Eastbourne
Slough
Stansted
Sutton
Luton
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Other flights to Heathrow
Explore flights to Heathrow departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 17, 2026.
San Diego and Heathrow flights
Browse other San Diego and Heathrow flight options. Last updated on September 17, 2026.
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Browse through other flights departing from San Diego. Flights are based on user searches made on Cheapflights and were last updated on September 17, 2026.
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Check out other popular destinations found by fellow travelers in 2026
Top 9 airlines flying from San Diego to Heathrow
Discover the top 9 airlines that operate flights from San Diego to Heathrow. 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 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$296 | Average$670 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$608 | Average$890 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$621 | Average$888 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$626 | Average$1,121 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$630 | Average$943 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$642 | Average$1,050 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$685 | Average$1,101 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$792 | Average$1,190 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$888 | Average$894 | FlexibilityNo cancel fee | On-time75% |