$564+ Cheap flights from Heathrow (LHR) to San Diego (SAN)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SAN
Sep 11 — Sep 181
Round-trip
1 adult, Economy
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Find cheap flights from Heathrow to San Diego 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 Heathrow to San Diego are usually found in February or January, booked 81 days in advance, depart on a Wednesday or Thursday and return on a Wednesday
Cheap flight deals from Heathrow to San Diego
Cheapest
Best
Last-minute
One-way
Cheapest flights from Heathrow to San DiegoExplore the most affordable flight options available from Heathrow to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 12, 2026.
Explore the most affordable flight options available from Heathrow to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 12, 2026.
This The Travel House deal was found by Cheapflights users on 8/8. 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 The Travel House is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/101:05 pm -
1 stop30h 30m
Mon 10/1910:11 am -
1 stop13h 34m
Deal found 8/8![Lufthansa logo]()
$793
This Kiwi.com deal was found by Cheapflights users on 8/9. 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 10/292:50 pm -
1 stop27h 55m
Wed 11/1812:35 pm -
1 stop15h 15m
Deal found 8/9![WestJet logo]()
$794
This Scandinavian Airlines deal was found by Cheapflights users on 8/7. 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.
Tue 9/296:40 am -
2 stops23h 53m
Wed 12/911:03 am -
2 stops22h 37m
Deal found 8/7![Scandinavian Airlines logo]()
$796
This TravelUp deal was found by Cheapflights users on 8/8. 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 10/16:40 am -
2 stops24h 14m
Mon 11/303:00 pm -
2 stops19h 30m
Deal found 8/8![Scandinavian Airlines logo]()
$797
This Scandinavian Airlines deal was found by Cheapflights users on 8/11. 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 9/256:40 am -
2 stops24h 54m
Fri 10/27:00 am -
2 stops25h 00m
Deal found 8/11![Scandinavian Airlines logo]()
$798
This Scandinavian Airlines deal was found by Cheapflights users on 8/7. 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.
Mon 11/167:05 am -
3 stops23h 52m
Sun 11/223:00 pm -
2 stops18h 40m
Deal found 8/7![Scandinavian Airlines logo]()
$800
This Scandinavian Airlines deal was found by Cheapflights users on 8/10. 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.
Mon 11/167:05 am -
3 stops23h 52m
Sun 12/66:20 am -
2 stops28h 10m
Deal found 8/10![Scandinavian Airlines logo]()
$802
This TravelUp deal was found by Cheapflights users on 8/8. 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 9/167:25 am -
1 stop16h 00m
Wed 9/3012:37 pm -
1 stop15h 58m
Deal found 8/8![Lufthansa logo]()
$803
This TravelUp deal was found by Cheapflights users on 8/9. 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 10/287:40 am -
1 stop16h 05m
Wed 11/46:50 am -
1 stop21h 10m
Deal found 8/9![Lufthansa logo]()
$804
This Scandinavian Airlines deal was found by Cheapflights users on 8/11. 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 10/1410:20 am -
2 stops21h 26m
Wed 10/2810:53 am -
2 stops23h 47m
Deal found 8/11![Scandinavian Airlines logo]()
$806
Best flights from Heathrow to San DiegoDiscover carefully curated flight deals from Heathrow to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 12, 2026.
Discover carefully curated flight deals from Heathrow to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 12, 2026.
This Scandinavian Airlines deal was found by Cheapflights users on 8/10. 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.
Sat 10/246:40 am -
2 stops23h 22m
Wed 11/48:00 am -
2 stops26h 30m
Deal found 8/10![Scandinavian Airlines logo]()
$839
This United Airlines deal was found by Cheapflights users on 8/8. 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 9/166:55 am -
1 stop16h 30m
Sun 9/2010:30 pm -
1 stop24h 15m
Deal found 8/8![United Airlines logo]()
$845
This Lufthansa deal was found by Cheapflights users on 8/7. 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 9/97:25 am -
1 stop16h 00m
Wed 9/168:00 am -
1 stop14h 55m
Deal found 8/7![Multiple Airlines logo]()
$845
This British Airways deal was found by Cheapflights users on 8/10. 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.
Thu 9/1011:35 am -
Nonstop11h 20m
Wed 9/2312:08 pm -
1 stop14h 47m
Deal found 8/10![British Airways logo]()
$921
This Delta deal was found by Cheapflights users on 8/8. 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.
Thu 9/106:30 am -
1 stop13h 20m
Wed 9/236:15 am -
2 stops16h 10m
Deal found 8/8![Delta logo]()
$925
This SWISS deal was found by Cheapflights users on 8/9. 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 10/18:05 pm -
2 stops30h 35m
Fri 10/236:40 am -
2 stops22h 20m
Deal found 8/9![SWISS logo]()
$928
This British Airways deal was found by Cheapflights users on 8/11. 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.
Thu 9/1011:35 am -
Nonstop11h 20m
Thu 9/241:10 pm -
1 stop13h 40m
Deal found 8/11![British Airways logo]()
$921
This American Airlines deal was found by Cheapflights users on 8/7. 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.
Sat 9/511:35 am -
Nonstop11h 20m
Mon 9/213:05 pm -
1 stop13h 45m
Deal found 8/7![Multiple Airlines logo]()
$941
This American Airlines deal was found by Cheapflights users on 8/8. 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.
Thu 9/1011:35 am -
Nonstop11h 20m
Wed 9/237:40 pm -
Nonstop10h 40m
Deal found 8/8![Multiple Airlines logo]()
$943
This British Airways deal was found by Cheapflights users on 8/11. 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.
Mon 10/1211:35 am -
Nonstop11h 20m
Fri 10/231:12 pm -
1 stop14h 03m
Deal found 8/11![British Airways logo]()
$975
Last-minute flights from Heathrow to San DiegoDiscover last-minute flight deals from Heathrow to San Diego. Data last updated August 12, 2026 and is based on user searches.
Discover last-minute flight deals from Heathrow to San Diego. Data last updated August 12, 2026 and is based on user searches.
This Scandinavian Airlines deal was found by Cheapflights users on 8/8. 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 9/47:05 am -
2 stops24h 38m
Sun 9/67:03 am -
2 stops24h 57m
Deal found 8/8![Scandinavian Airlines logo]()
$821
This TravelUp deal was found by Cheapflights users on 8/11. 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.
Tue 9/88:25 pm -
1 stop27h 00m
Tue 9/156:15 am -
1 stop19h 55m
Deal found 8/11![Multiple Airlines logo]()
$815
This lol.travel deal was found by Cheapflights users on 8/10. 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.
Thu 9/107:05 am -
2 stops24h 29m
Wed 9/237:30 am -
2 stops24h 30m
Deal found 8/10![Scandinavian Airlines logo]()
$810
This Globehunters deal was found by Cheapflights users on 8/11. 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.
Tue 9/154:25 pm -
1 stop31h 00m
Wed 9/301:10 pm -
1 stop14h 40m
Deal found 8/11![Multiple Airlines logo]()
$814
This TravelUp deal was found by Cheapflights users on 8/8. 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 9/167:25 am -
1 stop16h 00m
Wed 9/3012:37 pm -
1 stop15h 58m
Deal found 8/8![Lufthansa logo]()
$803
This Scandinavian Airlines deal was found by Cheapflights users on 8/11. 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 9/205:00 pm -
2 stops37h 54m
Thu 10/13:00 pm -
2 stops41h 00m
Deal found 8/11![Scandinavian Airlines logo]()
$812
This lol.travel deal was found by Cheapflights users on 8/7. 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.
Mon 9/219:30 am -
2 stops19h 06m
Mon 9/287:00 am -
1 stop19h 00m
Deal found 8/7![Multiple Airlines logo]()
$819
This Scandinavian Airlines deal was found by Cheapflights users on 8/11. 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 9/256:40 am -
2 stops24h 54m
Fri 10/27:00 am -
2 stops25h 00m
Deal found 8/11![Scandinavian Airlines logo]()
$798
This lol.travel deal was found by Cheapflights users on 8/11. 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.
Fri 9/258:40 am -
1 stop18h 06m
Fri 10/29:30 pm -
1 stop15h 15m
Deal found 8/11![JetBlue logo]()
$807
This Scandinavian Airlines deal was found by Cheapflights users on 8/7. 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.
Tue 9/296:40 am -
2 stops23h 53m
Wed 12/911:03 am -
2 stops22h 37m
Deal found 8/7![Scandinavian Airlines logo]()
$796
This Scandinavian Airlines deal was found by Cheapflights users on 8/9. 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.
Tue 9/296:40 am -
2 stops23h 53m
Tue 12/811:03 am -
3 stops26h 32m
Deal found 8/9![Scandinavian Airlines logo]()
$802
One-way flights from Heathrow to San DiegoSearch for one-way flight options from Heathrow to San Diego. Find affordable one-way fares based on user searches. Data last updated August 12, 2026.
Search for one-way flight options from Heathrow to San Diego. Find affordable one-way fares based on user searches. Data last updated August 12, 2026.
This Air Canada deal was found by Cheapflights users on 8/7. 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.
Mon 10/55:55 pm -
2 stops34h 41m
Deal found 8/7![Air Canada logo]()
$564
This Kiwi.com deal was found by Cheapflights users on 8/9. 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 10/82:10 pm -
1 stop32h 00m
Deal found 8/9![WestJet logo]()
$565
This Kiwi.com deal was found by Cheapflights users on 8/8. 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 9/307:25 am -
3 stops44h 52m
Deal found 8/8![Multiple Airlines logo]()
$566
This Kiwi.com deal was found by Cheapflights users on 8/9. 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 11/62:45 pm -
2 stops36h 52m
Deal found 8/9![Multiple Airlines logo]()
$567
This Cheapflightsfares deal was found by Cheapflights users on 8/7. 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 9/207:30 pm -
2 stops29h 56m
Deal found 8/7![Lufthansa logo]()
$568
This Kiwi.com deal was found by Cheapflights users on 8/11. 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 9/218:40 am -
3 stops40h 19m
Deal found 8/11![Multiple Airlines logo]()
$571
This Kiwi.com deal was found by Cheapflights users on 8/7. 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 10/56:55 am -
3 stops42h 04m
Deal found 8/7![Multiple Airlines logo]()
$572
This Kiwi.com deal was found by Cheapflights users on 8/7. 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 9/143:00 pm -
2 stops55h 10m
Deal found 8/7![Multiple Airlines logo]()
$573
This Kiwi.com deal was found by Cheapflights users on 8/8. 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 9/48:00 pm -
3 stops50h 50m
Deal found 8/8![Multiple Airlines logo]()
$574
This Delta deal was found by Cheapflights users on 8/8. 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.
Mon 10/59:55 am -
1 stop33h 55m
Deal found 8/8![Delta logo]()
$577
This Kiwi.com deal was found by Cheapflights users on 8/9. 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 10/71:05 pm -
3 stops28h 15m
Deal found 8/9![Multiple Airlines logo]()
$578
Find flight deals from Heathrow to San Diego
Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to San Diego (SAN). 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 August 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $793 (The Travel House) |
One-way from | $564 (Air Canada) |
Popular in | August |
Cheapest in | February |
Average price | $1,184 |
Good round-trip deal | $1,355 or less |
Good one-way deal | $613 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Heathrow to San Diego 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 2,558,603 searches. Data last updated August 12, 2026.
Use the filters below to find and compare flights from London Heathrow Airport to San Diego that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
LondonSan Diego
LHR London Heathrow - SAN San Diego
LHRSAN
London Heathrow
Sat 10/24
6:40 am-10:02 pm
2 stops23h 22m
San Diego
Wed 11/4
8:00 am-6:30 pm
2 stops26h 30m
$839
LondonSan Diego
LHR London Heathrow - SAN San Diego
LHRSAN
London Heathrow
Wed 9/16
6:55 am-3:25 pm
1 stop16h 30m
San Diego
Sun 9/20
10:30 pm-6:45 am
1 stop24h 15m
$845
LondonSan Diego
LHR London Heathrow - SAN San Diego
LHRSAN
London Heathrow
Wed 9/9
7:25 am-3:25 pm
1 stop16h 00m
San Diego
Wed 9/16
8:00 am-6:55 am
1 stop14h 55m
$845
LondonSan Diego
LHR London Heathrow - SAN San Diego
LHRSAN
London Heathrow
Thu 9/10
11:35 am-2:55 pm
Nonstop11h 20m
San Diego
Wed 9/23
12:08 pm-10:55 am
1 stop14h 47m
$921
LondonSan Diego
LHR London Heathrow - SAN San Diego
LHRSAN
London Heathrow
Thu 9/10
11:35 am-2:55 pm
Nonstop11h 20m
San Diego
Thu 9/24
1:10 pm-10:50 am
1 stop13h 40m
$921
LondonSan Diego
LHR London Heathrow - SAN San Diego
LHRSAN
London Heathrow
Thu 9/10
6:30 am-11:50 am
1 stop13h 20m
San Diego
Wed 9/23
6:15 am-6:25 am
2 stops16h 10m
$925
LondonSan Diego
LHR London Heathrow - SAN San Diego
LHRSAN
London Heathrow
Thu 10/1
8:05 pm-6:40 pm
2 stops30h 35m
San Diego
Fri 10/23
6:40 am-1:00 pm
2 stops22h 20m
$928
LondonSan Diego
LHR London Heathrow - SAN San Diego
LHRSAN
London Heathrow
Sat 9/5
11:35 am-2:55 pm
Nonstop11h 20m
San Diego
Mon 9/21
3:05 pm-12:50 pm
1 stop13h 45m
$941
Quickest round-trip
LondonSan Diego
LHR London Heathrow - SAN San Diego
LHRSAN
London Heathrow
Thu 9/10
11:35 am-2:55 pm
Nonstop11h 20m
San Diego
Wed 9/23
7:40 pm-2:20 pm
Nonstop10h 40m
$943
LondonSan Diego
LHR London Heathrow - SAN San Diego
LHRSAN
London Heathrow
Mon 10/12
11:35 am-2:55 pm
Nonstop11h 20m
San Diego
Fri 10/23
1:12 pm-11:15 am
1 stop14h 03m
$975
Showing 1-10 of 22 resultsSorted by cheapest first
Compare providers for flights from Heathrow to San Diego
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 Heathrow to San Diego in August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on London Heathrow Airport-San Diego flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on London Heathrow Airport-San Diego flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from London Heathrow Airport-San Diego flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on London Heathrow Airport-San Diego 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 Heathrow Airport-San Diego 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 Heathrow to San Diego
Have a flexible travel schedule? Discover the best time to fly to San Diego from Heathrow with our price prediction graph.
LHR-SAN
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 Heathrow Airport to San Diego
Prices
Airlines
Delays
How far ahead should I book a flight from London Heathrow Airport to San Diego?
Booking 80 days in advance of your planned departure date is, on average, the best time to get cheap flights from London Heathrow Airport to San Diego. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from London Heathrow Airport to San Diego?
Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to San Diego (average of $678). Flying from London Heathrow Airport to San Diego in August is currently the most expensive (average of $1,184). 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 LHR to SAN?
Find hourly flight availability from Heathrow to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 12, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London Heathrow Airport to San Diego as you normally would.
How often are flights from London to San Diego delayed?
About 17% of weekly flights between London and San Diego have experienced delays in the past year, with the average delay time being 152 minutes.
What is the most punctual flight time for London to San Diego flights?
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Tuesday tends to have the lowest number of delays on this route, whereas Saturday 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 Diego flights?
Over the last year, British Airways have had the lowest number of delays on this route, with just 17% of flights being delayed.
The best insider tips for London Heathrow Airport to San Diego 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 Heathrow Airport to San Diego trip
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Reviews of airlines servicing San Diego
Get insights into the airlines that provide service to San Diego. 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 Diego. Reviews last updated August 12, 2026.
See what other customers who have flown with American Airlines and British Airways from London Heathrow Airport to San Diego have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
7.5
Crew
7.9
Entertainment
6.8
Comfort
7.2
Overall
7.1
Food
6.4
Reviews
1 / 20
10.0
ExcellentRon,Aug 2026
LHR - LAX
Boarding
7.5
Crew
7.9
Entertainment
6.8
Comfort
7.2
Overall
7.1
Food
6.4
Reviews
1 / 20
10.0
ExcellentRon,Aug 2026
LHR - LAX
Boarding
7.5
Crew
7.9
Entertainment
6.8
Comfort
7.2
Overall
7.1
Food
6.4
Reviews
1 / 20
10.0
ExcellentRon,Aug 2026
LHR - LAX
Related info for your journey
Find useful and relevant information for your journey from Heathrow to San Diego. 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 Diego?
Book flights to San Diego if you plan to visit one of these locationsEl Cajon
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Top 2 airlines flying from Heathrow to San Diego
Discover the top 2 airlines that operate flights from Heathrow to San Diego. 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 2,558,603 searches. Data last updated August 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$658 | Average$923 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$697 | Average$1,143 | FlexibilityNo cancel fee | On-time71% |