$329+ Cheap flights from San Diego (SAN) to Heathrow (LHR)
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 10/26. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — LHR
Aug 29 — Sep 51
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 November or October, booked 34 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 July 30, 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 July 30, 2026.
This Delta deal was found by Cheapflights users on 7/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/309:46 am
SAN
- LHR
2 stops16h 34m
Delta
Wed 10/78:40 am
LHR
- SAN
2 stops18h 34m
Delta
Deal found 7/26![Delta logo]()
$956
This eDestinos deal was found by Cheapflights users on 7/26. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/911:15 am
SAN
- LHR
1 stop13h 50m
British Airways
Wed 9/1611:35 am
LHR
- SAN
Nonstop11h 20m
British Airways
Deal found 7/26![British Airways logo]()
$957
This Expedia deal was found by Cheapflights users on 7/25. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/27:30 am
SAN
- LHR
1 stop14h 50m
Multiple Airlines
Mon 9/77:45 pm
LHR
- SAN
2 stops27h 16m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$958
This Kiwi.com deal was found by Cheapflights users on 7/27. 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.
Thu 10/83:30 pm
SAN
- LHR
1 stop36h 35m
WestJet
Sat 10/172:10 pm
LHR
- SAN
1 stop32h 00m
WestJet
Deal found 7/27![WestJet logo]()
$959
This Air Canada deal was found by Cheapflights users on 7/29. 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 10/712:35 pm
SAN
- LHR
1 stop16h 45m
Air Canada
Thu 10/155:40 pm
LHR
- SAN
2 stops33h 00m
Air Canada
Deal found 7/29![Air Canada logo]()
$960
This Cheapflightsfares deal was found by Cheapflights users on 7/26. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/202:24 pm
SAN
- LHR
2 stops18h 16m
Lufthansa
Thu 10/16:30 am
LHR
- SAN
2 stops18h 56m
Lufthansa
Deal found 7/26![Lufthansa logo]()
$961
This American Airlines deal was found by Cheapflights users on 7/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/29:05 am
SAN
- LHR
1 stop13h 45m
American Airlines
Wed 9/1611:35 am
LHR
- SAN
Nonstop11h 20m
American Airlines
Deal found 7/28![American Airlines logo]()
$962
This Air Canada deal was found by Cheapflights users on 7/29. 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 9/167:00 am
SAN
- LHR
1 stop15h 30m
Air Canada
Fri 9/2512:05 pm
LHR
- SAN
2 stops31h 20m
Air Canada
Deal found 7/29![Air Canada logo]()
$963
This American Airlines deal was found by Cheapflights users on 7/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/234:45 pm
SAN
- LHR
Nonstop10h 45m
American Airlines
Tue 9/811:35 am
LHR
- SAN
Nonstop11h 20m
American Airlines
Deal found 7/26![American Airlines logo]()
$964
This British Airways deal was found by Cheapflights users on 7/29. 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 10/54:45 pm
SAN
- LHR
Nonstop10h 45m
British Airways
Fri 10/1611:35 am
LHR
- SAN
Nonstop11h 20m
British Airways
Deal found 7/29![British Airways logo]()
$965
This British Airways deal was found by Cheapflights users on 7/27. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/57:40 pm
SAN
- LHR
Nonstop10h 40m
British Airways
Wed 10/1411:35 am
LHR
- SAN
Nonstop11h 20m
British Airways
Deal found 7/27![British Airways logo]()
$966
This Cheapflightsfares deal was found by Cheapflights users on 7/26. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/56:00 pm
SAN
- LHR
Nonstop10h 40m
British Airways
Sun 11/812:45 pm
LHR
- SAN
Nonstop11h 25m
British Airways
Deal found 7/26![British Airways logo]()
$967
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 July 30, 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 July 30, 2026.
This Delta deal was found by Cheapflights users on 7/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/309:46 am
SAN
- LHR
2 stops16h 34m
Delta
Wed 10/78:40 am
LHR
- SAN
2 stops18h 34m
Delta
Deal found 7/26![Delta logo]()
$956
This SWISS deal was found by Cheapflights users on 7/27. 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 8/246:18 am
SAN
- LHR
2 stops17h 37m
SWISS
Mon 8/318:05 pm
LHR
- SAN
2 stops30h 25m
SWISS
Deal found 7/27![SWISS logo]()
$960
This British Airways deal was found by Cheapflights users on 7/27. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/247:40 pm
SAN
- LHR
Nonstop10h 40m
British Airways
Thu 9/1011:35 am
LHR
- SAN
Nonstop11h 20m
British Airways
Deal found 7/27![British Airways logo]()
$966
This United deal was found by Cheapflights users on 7/27. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/38:45 am
SAN
- LHR
3 stops27h 55m
Multiple Airlines
Mon 9/77:10 pm
LHR
- SAN
1 stop28h 15m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$1,002
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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 9/197:15 am
SAN
- LHR
1 stop23h 50m
Alaska Airlines
Tue 9/225:00 pm
LHR
- SAN
1 stop14h 35m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$1,030
This Scandinavian Airlines deal was found by Cheapflights users on 7/25. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/227:00 am
SAN
- LHR
2 stops25h 00m
Scandinavian Airlines
Tue 10/67:05 am
LHR
- SAN
3 stops24h 41m
Scandinavian Airlines
Deal found 7/25![Scandinavian Airlines logo]()
$1,052
This JetBlue deal was found by Cheapflights users on 7/28. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/208:30 pm
SAN
- LHR
1 stop16h 15m
JetBlue
Mon 10/58:15 am
LHR
- SAN
1 stop19h 52m
JetBlue
Deal found 7/28![JetBlue logo]()
$1,061
This Delta deal was found by Cheapflights users on 7/27. 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.
Mon 8/247:30 am
SAN
- LHR
1 stop15h 15m
Delta
Mon 8/316:30 am
LHR
- SAN
2 stops16h 40m
Delta
Deal found 7/27![Delta logo]()
$1,001
This Scandinavian Airlines deal was found by Cheapflights users on 7/28. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2911:04 am
SAN
- LHR
2 stops22h 36m
Scandinavian Airlines
Sat 10/106:40 am
LHR
- SAN
3 stops24h 03m
Scandinavian Airlines
Deal found 7/28![Scandinavian Airlines logo]()
$1,053
This Delta deal was found by Cheapflights users on 7/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1010:54 am
SAN
- LHR
1 stop15h 21m
Delta
Fri 9/258:40 am
LHR
- SAN
2 stops18h 33m
Delta
Deal found 7/28![Delta logo]()
$1,001
This Scandinavian Airlines deal was found by Cheapflights users on 7/25. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/307:30 am
SAN
- LHR
2 stops24h 30m
Scandinavian Airlines
Wed 10/76:40 am
LHR
- SAN
3 stops25h 06m
Scandinavian Airlines
Deal found 7/25![Scandinavian Airlines logo]()
$1,055
This Scandinavian Airlines deal was found by Cheapflights users on 7/28. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/207:00 am
SAN
- LHR
2 stops25h 00m
Scandinavian Airlines
Tue 10/67:05 am
LHR
- SAN
3 stops24h 41m
Scandinavian Airlines
Deal found 7/28![Scandinavian Airlines logo]()
$1,075
Last-minute flights from San Diego to HeathrowDiscover last-minute flight deals from San Diego to Heathrow. Data last updated July 30, 2026 and is based on user searches.
Discover last-minute flight deals from San Diego to Heathrow. Data last updated July 30, 2026 and is based on user searches.
This Justfly.com deal was found by Cheapflights users on 7/29. 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.
Mon 8/178:40 pm
SAN
- LHR
1 stop25h 50m
JetBlue
Wed 10/2812:20 pm
LHR
- SAN
1 stop28h 17m
JetBlue
Deal found 7/29![JetBlue logo]()
$960
This Priceline deal was found by Cheapflights users on 7/29. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1712:02 pm
SAN
- LHR
1 stop24h 43m
Multiple Airlines
Wed 10/281:00 pm
LHR
- SAN
2 stops31h 24m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$969
This CheapOair deal was found by Cheapflights users on 7/26. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/178:30 pm
SAN
- LHR
1 stop16h 15m
Multiple Airlines
Wed 10/77:25 am
LHR
- SAN
1 stop16h 00m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$978
This American Airlines deal was found by Cheapflights users on 7/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/234:45 pm
SAN
- LHR
Nonstop10h 45m
American Airlines
Tue 9/811:35 am
LHR
- SAN
Nonstop11h 20m
American Airlines
Deal found 7/26![American Airlines logo]()
$964
This Iberia deal was found by Cheapflights users on 7/25. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/237:40 pm
SAN
- LHR
Nonstop10h 40m
Iberia
Tue 9/810:05 am
LHR
- SAN
1 stop16h 49m
Iberia
Deal found 7/25![Iberia logo]()
$975
This Air Canada deal was found by Cheapflights users on 7/25. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/237:00 am
SAN
- LHR
1 stop19h 00m
Air Canada
Tue 9/82:10 pm
LHR
- SAN
2 stops29h 37m
Air Canada
Deal found 7/25![Air Canada logo]()
$976
This British Airways deal was found by Cheapflights users on 7/27. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/247:40 pm
SAN
- LHR
Nonstop10h 40m
British Airways
Fri 9/1111:35 am
LHR
- SAN
Nonstop11h 20m
British Airways
Deal found 7/27![British Airways logo]()
$966
This Gotogate deal was found by Cheapflights users on 7/28. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/257:00 am
SAN
- LHR
1 stop19h 00m
Multiple Airlines
Sun 8/307:25 am
LHR
- SAN
1 stop16h 00m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$968
This British Airways deal was found by Cheapflights users on 7/28. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/264:22 pm
SAN
- LHR
1 stop14h 43m
British Airways
Wed 9/911:35 am
LHR
- SAN
Nonstop11h 20m
British Airways
Deal found 7/28![British Airways logo]()
$970
This Cheapflightsfares deal was found by Cheapflights users on 7/30. 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.
Thu 8/278:30 pm
SAN
- LHR
1 stop16h 15m
JetBlue
Tue 9/18:40 am
LHR
- SAN
1 stop18h 16m
JetBlue
Deal found 7/30![JetBlue logo]()
$963
This Gotogate deal was found by Cheapflights users on 7/29. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3112:30 pm
SAN
- LHR
1 stop34h 05m
Multiple Airlines
Sun 9/67:25 am
LHR
- SAN
1 stop16h 00m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$972
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 July 30, 2026.
Search for one-way flight options from San Diego to Heathrow. Find affordable one-way fares based on user searches. Data last updated July 30, 2026.
This JetBlue deal was found by Cheapflights users on 7/29. 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 10/269:30 pm
SAN
- LHR
1 stop16h 15m
JetBlue
Deal found 7/29![JetBlue logo]()
$329
This British Airways deal was found by Cheapflights users on 7/29. 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 1/266:00 pm
SAN
- LHR
Nonstop10h 40m
British Airways
Deal found 7/29![British Airways logo]()
$330
This United Airlines deal was found by Cheapflights users on 7/27. 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.
Sat 1/2310:30 pm
SAN
- LHR
1 stop14h 50m
United Airlines
Deal found 7/27![United Airlines logo]()
$334
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/47:38 pm
SAN
- LHR
3 stops28h 27m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$335
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 10/287:27 pm
SAN
- LHR
3 stops29h 38m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$336
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/316:25 am
SAN
- LHR
3 stops48h 35m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$337
This Air Canada deal was found by Cheapflights users on 7/29. 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.
Sat 10/3112:55 pm
SAN
- LHR
1 stop36h 35m
Air Canada
Deal found 7/29![Air Canada logo]()
$338
This Kiwi.com deal was found by Cheapflights users on 7/26. 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.
Fri 1/2212:35 pm
SAN
- LHR
1 stop15h 15m
WestJet
Deal found 7/26![WestJet logo]()
$339
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/46:15 am
SAN
- LHR
3 stops41h 50m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$341
This Kiwi.com deal was found by Cheapflights users on 7/27. 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.
Thu 10/2911:18 am
SAN
- LHR
2 stops42h 32m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$342
This Kiwi.com deal was found by Cheapflights users on 7/26. 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.
Mon 1/257:05 pm
SAN
- LHR
3 stops29h 00m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$345
This United Airlines deal was found by Cheapflights users on 7/25. 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.
Sat 1/210:42 pm
SAN
- LHR
1 stop27h 43m
United Airlines
Deal found 7/25![United Airlines logo]()
$346
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 July 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $956 (Delta) |
One-way from | $329 (JetBlue) |
Popular in | June |
Cheapest in | November |
Average price | $1,460 |
Good round-trip deal | $968 or less |
Good one-way deal | $457 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 2,558,603 searches. Data last updated July 30, 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 - LHR
SANLHR
San Diego
Wed 9/30
9:46 am-10:20 am
2 stops16h 34m
London Heathrow
Wed 10/7
8:40 am-7:14 pm
2 stops18h 34m
$956
San DiegoLondon
SAN - LHR
SANLHR
San Diego
Mon 8/24
6:18 am-7:55 am
2 stops17h 37m
London Heathrow
Mon 8/31
8:05 pm-6:30 pm
2 stops30h 25m
$960
Quickest round-trip
San DiegoLondon
SAN - LHR
SANLHR
San Diego
Mon 8/24
7:40 pm-2:20 pm
Nonstop10h 40m
London Heathrow
Thu 9/10
11:35 am-2:55 pm
Nonstop11h 20m
$966
San DiegoLondon
SAN - LHR
SANLHR
San Diego
Mon 8/24
7:30 am-6:45 am
1 stop15h 15m
London Heathrow
Mon 8/31
6:30 am-3:10 pm
2 stops16h 40m
$1,001
San DiegoLondon
SAN - LHR
SANLHR
San Diego
Thu 9/10
10:54 am-10:15 am
1 stop15h 21m
London Heathrow
Fri 9/25
8:40 am-7:13 pm
2 stops18h 33m
$1,001
San DiegoLondon
SAN - LHR
SANLHR
San Diego
Thu 9/3
8:45 am-8:40 pm
3 stops27h 55m
London Heathrow
Mon 9/7
7:10 pm-3:25 pm
1 stop28h 15m
$1,002
San DiegoLondon
SAN - LHR
SANLHR
San Diego
Sat 9/19
7:15 am-3:05 pm
1 stop23h 50m
London Heathrow
Tue 9/22
5:00 pm-11:35 pm
1 stop14h 35m
$1,030
San DiegoLondon
SAN - LHR
SANLHR
San Diego
Tue 9/22
7:00 am-4:00 pm
2 stops25h 00m
London Heathrow
Tue 10/6
7:05 am-11:46 pm
3 stops24h 41m
$1,052
San DiegoLondon
SAN - LHR
SANLHR
San Diego
Tue 9/29
11:04 am-5:40 pm
2 stops22h 36m
London Heathrow
Sat 10/10
6:40 am-10:43 pm
3 stops24h 03m
$1,053
San DiegoLondon
SAN - LHR
SANLHR
San Diego
Wed 9/30
7:30 am-4:00 pm
2 stops24h 30m
London Heathrow
Wed 10/7
6:40 am-11:46 pm
3 stops25h 06m
$1,055
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 July.
| 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 33 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, November is the cheapest month in which you can book a flight from San Diego to London Heathrow Airport (average of $765). Flying from San Diego to London Heathrow Airport in June is currently the most expensive (average of $1,493). 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 July 30, 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 July 30, 2026.
Read reviews from past customers who have flown Delta,Virgin Atlantic, andUnited Airlines 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.
Entertainment
7.8
Crew
8.5
Food
7.2
Comfort
7.8
Overall
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Entertainment
7.8
Crew
8.5
Food
7.2
Comfort
7.8
Overall
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Entertainment
7.8
Crew
8.5
Food
7.2
Comfort
7.8
Overall
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Entertainment
7.8
Crew
8.5
Food
7.2
Comfort
7.8
Overall
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Entertainment
7.8
Crew
8.5
Food
7.2
Comfort
7.8
Overall
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Entertainment
7.8
Crew
8.5
Food
7.2
Comfort
7.8
Overall
7.8
Boarding
8.1
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
Hounslow
Winchester
Croydon
Gatwick
Wembley
Harrow
Eastleigh
Southend-on-Sea
Watford
Northampton
Dartford
Chipping Norton
Kingston upon Thames
Eastbourne
Slough
Stansted
Sutton
Luton
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for San Diego to Heathrow
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Complete your trip
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Search flights from San Diego to Heathrow by cabin class
Find flights from San Diego to Heathrow, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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 July 30, 2026.
San Diego and Heathrow flights
Browse other San Diego and Heathrow flight options. Last updated on July 30, 2026.
Other flights from San Diego
Browse through other flights departing from San Diego. Flights are based on user searches made on Cheapflights and were last updated on July 30, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 10 airlines flying from San Diego to Heathrow
Discover the top 10 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 2,558,603 searches. Data last updated July 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$181 | Average$1,190 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$296 | Average$670 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$552 | Average$969 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$569 | Average$969 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$574 | Average$1,007 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$577 | Average$773 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$578 | Average$706 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$593 | Average$996 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$621 | Average$897 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$888 | Average$979 | FlexibilityNo cancel fee | On-time75% |