$434+ 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 8/10. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — LHR
Jun 4 — Jun 111
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 September or October, booked 34 days in advance, depart on a Wednesday or Saturday and return on a Tuesday
Cheap flight deals from San Diego to Heathrow
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Best
Last-minute
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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 May 5, 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 May 5, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 4/30. 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.
Tue 9/1511:09 am
SAN
- LHR
1 stop13h 56m
British Airways
Tue 10/611:35 am
LHR
- SAN
Nonstop11h 20m
British Airways
Deal found 4/30![British Airways logo]()
$883
This Expedia deal was found by Cheapflights users on 4/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/14:45 pm
SAN
- LHR
Nonstop10h 45m
Multiple Airlines
Mon 9/147:25 am
LHR
- SAN
1 stop16h 00m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$884
This Scandinavian Airlines deal was found by Cheapflights users on 5/1. 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 9/1211:05 am
SAN
- LHR
2 stops22h 35m
Scandinavian Airlines
Tue 9/227:05 am
LHR
- SAN
3 stops24h 38m
Scandinavian Airlines
Deal found 5/1![Scandinavian Airlines logo]()
$885
This Scandinavian Airlines deal was found by Cheapflights users on 4/30. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/611:05 am
SAN
- LHR
2 stops26h 35m
Scandinavian Airlines
Mon 9/147:05 am
LHR
- SAN
3 stops24h 38m
Scandinavian Airlines
Deal found 4/30![Scandinavian Airlines logo]()
$886
This Orbitz deal was found by Cheapflights users on 5/2. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/21:55 pm
SAN
- LHR
1 stop14h 55m
Multiple Airlines
Sun 9/68:25 pm
LHR
- SAN
1 stop27h 00m
Multiple Airlines
Deal found 5/2![Multiple Airlines logo]()
$887
This Cheapflightsfares deal was found by Cheapflights users on 4/30. 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.
Wed 9/164:45 pm
SAN
- LHR
Nonstop10h 45m
British Airways
Wed 10/712:55 pm
LHR
- SAN
1 stop15h 05m
British Airways
Deal found 4/30![British Airways logo]()
$889
This British Airways deal was found by Cheapflights users on 5/2. 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 8/27:40 pm
SAN
- LHR
Nonstop10h 40m
British Airways
Thu 8/2711:35 am
LHR
- SAN
Nonstop11h 20m
British Airways
Deal found 5/2![British Airways logo]()
$892
This Cheapflightsfares deal was found by Cheapflights users on 5/4. 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.
Mon 8/242:23 pm
SAN
- LHR
1 stop13h 47m
British Airways
Wed 9/212:55 pm
LHR
- SAN
1 stop14h 59m
British Airways
Deal found 5/4![British Airways logo]()
$893
This KAYAK deal was found by Cheapflights users on 4/30. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/243:59 pm
SAN
- LHR
2 stops21h 41m
Scandinavian Airlines
Mon 11/305:00 pm
LHR
- SAN
2 stops37h 55m
Scandinavian Airlines
Deal found 4/30![Scandinavian Airlines logo]()
$894
This CrystalTravel deal was found by Cheapflights users on 4/30. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/137:40 pm
SAN
- LHR
Nonstop10h 40m
British Airways
Fri 8/2111:35 am
LHR
- SAN
Nonstop11h 20m
British Airways
Deal found 4/30![British Airways logo]()
$896
This American Airlines deal was found by Cheapflights users on 4/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2612:04 pm
SAN
- LHR
1 stop14h 51m
American Airlines
Wed 9/911:35 am
LHR
- SAN
Nonstop11h 20m
American Airlines
Deal found 4/30![American Airlines logo]()
$897
This oojo deal was found by Cheapflights users on 4/30. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/210:59 am
SAN
- LHR
1 stop14h 01m
British Airways
Wed 9/2311:35 am
LHR
- SAN
Nonstop11h 20m
British Airways
Deal found 4/30![British Airways logo]()
$899
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 May 5, 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 May 5, 2026.
This KLM deal was found by Cheapflights users on 4/30. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/12:00 pm
SAN
- LHR
1 stop15h 15m
KLM
Tue 10/206:30 am
LHR
- SAN
1 stop13h 20m
KLM
Deal found 4/30![KLM logo]()
$918
This Virgin Atlantic deal was found by Cheapflights users on 4/30. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2912:50 pm
SAN
- LHR
1 stop15h 50m
Virgin Atlantic
Mon 11/98:25 pm
LHR
- SAN
1 stop23h 40m
Virgin Atlantic
Deal found 4/30![Virgin Atlantic logo]()
$918
This Delta deal was found by Cheapflights users on 5/1. 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 9/101:35 pm
SAN
- LHR
1 stop16h 25m
Delta
Fri 9/188:40 am
LHR
- SAN
2 stops18h 14m
Delta
Deal found 5/1![Delta logo]()
$928
This British Airways deal was found by Cheapflights users on 5/2. 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 8/164:45 pm
SAN
- LHR
Nonstop10h 45m
British Airways
Mon 8/2411:35 am
LHR
- SAN
Nonstop11h 20m
British Airways
Deal found 5/2![British Airways logo]()
$942
This Scandinavian Airlines deal was found by Cheapflights users on 5/4. 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 9/97:00 am
SAN
- LHR
2 stops18h 35m
Scandinavian Airlines
Wed 9/237:05 am
LHR
- SAN
3 stops24h 38m
Scandinavian Airlines
Deal found 5/4![Scandinavian Airlines logo]()
$1,039
This Delta deal was found by Cheapflights users on 5/4. 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 9/1610:00 am
SAN
- LHR
1 stop21h 00m
Delta
Sun 9/208:40 am
LHR
- SAN
2 stops18h 14m
Delta
Deal found 5/4![Delta logo]()
$929
This Delta deal was found by Cheapflights users on 5/1. 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.
Tue 8/1810:00 am
SAN
- LHR
1 stop16h 15m
Delta
Sun 8/306:15 am
LHR
- SAN
2 stops17h 53m
Delta
Deal found 5/1![Delta logo]()
$935
This Delta deal was found by Cheapflights users on 5/2. 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.
Sat 8/89:59 pm
SAN
- LHR
1 stop14h 11m
Delta
Sun 9/611:20 am
LHR
- SAN
1 stop17h 28m
Delta
Deal found 5/2![Delta logo]()
$957
This Scandinavian Airlines deal was found by Cheapflights users on 5/4. 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 8/1010:49 am
SAN
- LHR
2 stops22h 51m
Scandinavian Airlines
Wed 8/197:05 am
LHR
- SAN
3 stops20h 13m
Scandinavian Airlines
Deal found 5/4![Scandinavian Airlines logo]()
$1,196
This Delta deal was found by Cheapflights users on 5/4. 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 8/1310:30 pm
SAN
- LHR
1 stop23h 55m
Delta
Mon 8/246:30 am
LHR
- SAN
2 stops16h 39m
Delta
Deal found 5/4![Delta logo]()
$979
This Scandinavian Airlines deal was found by Cheapflights users on 4/30. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/107:00 am
SAN
- LHR
2 stops23h 35m
Scandinavian Airlines
Fri 9/187:05 am
LHR
- SAN
3 stops18h 55m
Scandinavian Airlines
Deal found 4/30![Scandinavian Airlines logo]()
$1,209
This Delta deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2110:54 am
SAN
- LHR
1 stop20h 06m
Delta
Sun 8/306:15 am
LHR
- SAN
2 stops17h 41m
Delta
Deal found 5/3![Delta logo]()
$985
Last-minute flights from San Diego to HeathrowDiscover last-minute flight deals from San Diego to Heathrow. Data last updated May 5, 2026 and is based on user searches.
Discover last-minute flight deals from San Diego to Heathrow. Data last updated May 5, 2026 and is based on user searches.
This Super.com deal was found by Cheapflights users on 5/3. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/410:25 am
SAN
- LHR
1 stop15h 05m
JetBlue
Mon 5/118:15 am
LHR
- SAN
1 stop19h 45m
JetBlue
Deal found 5/3![JetBlue logo]()
$1,045
This JetBlue deal was found by Cheapflights users on 5/2. 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 5/49:15 pm
SAN
- LHR
1 stop15h 30m
JetBlue
Fri 5/88:15 am
LHR
- SAN
1 stop19h 45m
JetBlue
Deal found 5/2![JetBlue logo]()
$1,046
This Justfly.com deal was found by Cheapflights users on 5/4. 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 5/510:25 am
SAN
- LHR
1 stop26h 20m
JetBlue
Tue 5/128:15 am
LHR
- SAN
1 stop19h 45m
JetBlue
Deal found 5/4![JetBlue logo]()
$1,054
This Super.com deal was found by Cheapflights users on 5/4. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/59:15 pm
SAN
- LHR
1 stop15h 30m
JetBlue
Wed 6/38:40 am
LHR
- SAN
1 stop18h 53m
JetBlue
Deal found 5/4![JetBlue logo]()
$1,057
This Cheapflightsfares deal was found by Cheapflights users on 5/4. 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.
Tue 5/59:15 pm
SAN
- LHR
1 stop15h 30m
JetBlue
Fri 6/58:40 am
LHR
- SAN
1 stop18h 51m
JetBlue
Deal found 5/4![JetBlue logo]()
$1,071
This Cheapflightsfares deal was found by Cheapflights users on 5/5. 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.
Tue 5/510:25 am
SAN
- LHR
1 stop15h 05m
JetBlue
Tue 6/28:40 am
LHR
- SAN
1 stop18h 53m
JetBlue
Deal found 5/5![JetBlue logo]()
$1,072
This Flysmarter deal was found by Cheapflights users on 5/5. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/710:25 am
SAN
- LHR
1 stop15h 05m
JetBlue
Wed 5/208:15 am
LHR
- SAN
1 stop19h 45m
JetBlue
Deal found 5/5![JetBlue logo]()
$1,063
This Cheapflightsfares deal was found by Cheapflights users on 5/2. 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.
Sat 5/99:10 pm
SAN
- LHR
1 stop15h 35m
JetBlue
Wed 5/278:40 am
LHR
- SAN
1 stop18h 53m
JetBlue
Deal found 5/2![JetBlue logo]()
$1,076
This Cheapflightsfares deal was found by Cheapflights users on 4/30. 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.
Sun 5/106:15 am
SAN
- LHR
2 stops18h 50m
Aer Lingus
Tue 5/191:25 pm
LHR
- SAN
2 stops18h 08m
Aer Lingus
Deal found 4/30![Aer Lingus logo]()
$1,023
This Cheapflightsfares deal was found by Cheapflights users on 5/1. 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.
Tue 5/129:10 pm
SAN
- LHR
2 stops31h 30m
Aer Lingus
Mon 5/181:25 pm
LHR
- SAN
2 stops18h 08m
Aer Lingus
Deal found 5/1![Aer Lingus logo]()
$1,070
This Kiwi.com deal was found by Cheapflights users on 5/2. 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 5/237:00 am
SAN
- LHR
2 stops29h 20m
Multiple Airlines
Thu 5/282:10 pm
LHR
- SAN
1 stop32h 00m
Multiple Airlines
Deal found 5/2![Multiple Airlines logo]()
$1,058
This Kiwi.com deal was found by Cheapflights users on 4/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/23:30 pm
SAN
- LHR
1 stop36h 35m
Multiple Airlines
Wed 6/103:00 pm
LHR
- SAN
2 stops41h 15m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$1,031
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 May 5, 2026.
Search for one-way flight options from San Diego to Heathrow. Find affordable one-way fares based on user searches. Data last updated May 5, 2026.
This KAYAK deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/108:00 am
SAN
- LHR
1 stop17h 00m
Finnair
Deal found 5/1![Finnair logo]()
$434
This Kiwi.com deal was found by Cheapflights users on 5/1. 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 9/298:03 pm
SAN
- LHR
3 stops41h 32m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$435
This Iberia deal was found by Cheapflights users on 5/1. 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.
Tue 9/292:17 pm
SAN
- LHR
2 stops18h 03m
Iberia
Deal found 5/1![Iberia logo]()
$442
This Cheapflightsfares deal was found by Cheapflights users on 5/4. 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.
Wed 7/2911:51 am
SAN
- LHR
2 stops23h 04m
Aer Lingus
Deal found 5/4![Aer Lingus logo]()
$443
This Justfly.com deal was found by Cheapflights users on 5/1. 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.
Sun 8/27:40 pm
SAN
- LHR
Nonstop10h 40m
Aer Lingus
Deal found 5/1![Aer Lingus logo]()
$449
This Kiwi.com deal was found by Cheapflights users on 5/1. 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 8/288:59 pm
SAN
- LHR
2 stops30h 56m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$451
This BusinessClass deal was found by Cheapflights users on 5/1. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/27:40 pm
SAN
- LHR
Nonstop10h 40m
Iberia
Deal found 5/1![Iberia logo]()
$453
This Orbitz deal was found by Cheapflights users on 4/30. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/17:00 am
SAN
- LHR
2 stops17h 05m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$454
This Kiwi.com deal was found by Cheapflights users on 5/3. 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 7/157:55 am
SAN
- LHR
2 stops20h 00m
Multiple Airlines
Deal found 5/3![Multiple Airlines logo]()
$455
This British Airways deal was found by Cheapflights users on 5/1. 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.
Sat 8/227:40 pm
SAN
- LHR
Nonstop10h 40m
British Airways
Deal found 5/1![British Airways logo]()
$456
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 May 5, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $883 (Delta) |
One-way from | $443 (Cheapflightsfares) |
Popular in | June |
Cheapest in | September |
Average price | $1,045 |
Good round-trip deal | $975 or less |
Good one-way deal | $447 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 May 5, 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
Thu 10/1
2:00 pm-1:15 pm
1 stop15h 15m
London Heathrow
Tue 10/20
6:30 am-11:50 am
1 stop13h 20m
$918
San DiegoLondon
SAN - LHR
SANLHR
San Diego
Thu 10/29
12:50 pm-11:40 am
1 stop15h 50m
London Heathrow
Mon 11/9
8:25 pm-12:05 pm
1 stop23h 40m
$918
San DiegoLondon
SAN - LHR
SANLHR
San Diego
Thu 9/10
1:35 pm-2:00 pm
1 stop16h 25m
London Heathrow
Fri 9/18
8:40 am-6:54 pm
2 stops18h 14m
$928
San DiegoLondon
SAN - LHR
SANLHR
San Diego
Wed 9/16
10:00 am-3:00 pm
1 stop21h 00m
London Heathrow
Sun 9/20
8:40 am-6:54 pm
2 stops18h 14m
$929
San DiegoLondon
SAN - LHR
SANLHR
San Diego
Tue 8/18
10:00 am-10:15 am
1 stop16h 15m
London Heathrow
Sun 8/30
6:15 am-4:08 pm
2 stops17h 53m
$935
Quickest round-trip
San DiegoLondon
SAN - LHR
SANLHR
San Diego
Sun 8/16
4:45 pm-11:30 am
Nonstop10h 45m
London Heathrow
Mon 8/24
11:35 am-2:55 pm
Nonstop11h 20m
$942
San DiegoLondon
SAN - LHR
SANLHR
San Diego
Sat 8/8
9:59 pm-8:10 pm
1 stop14h 11m
London Heathrow
Sun 9/6
11:20 am-8:48 pm
1 stop17h 28m
$957
San DiegoLondon
SAN - LHR
SANLHR
San Diego
Thu 8/13
10:30 pm-6:25 am
1 stop23h 55m
London Heathrow
Mon 8/24
6:30 am-3:09 pm
2 stops16h 39m
$979
San DiegoLondon
SAN - LHR
SANLHR
San Diego
Fri 8/21
10:54 am-3:00 pm
1 stop20h 06m
London Heathrow
Sun 8/30
6:15 am-3:56 pm
2 stops17h 41m
$985
San DiegoLondon
SAN - LHR
SANLHR
San Diego
Wed 9/9
7:00 am-9:35 am
2 stops18h 35m
London Heathrow
Wed 9/23
7:05 am-11:43 pm
3 stops24h 38m
$1,039
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 May.
| 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 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 | |
| Price Accuracy- | Trust Score*1 star |
- 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, September is the cheapest month in which you can book a flight from San Diego to London Heathrow Airport (average of $728). Flying from San Diego to London Heathrow Airport in June is currently the most expensive (average of $1,410). 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 May 5, 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 May 5, 2026.
Read reviews from past customers who have flown Delta,United Airlines, andAmerican 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
Food
7.2
Boarding
8.1
Overall
7.9
Crew
8.5
Comfort
7.9
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Entertainment
7.8
Food
7.2
Boarding
8.1
Overall
7.9
Crew
8.5
Comfort
7.9
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Entertainment
7.8
Food
7.2
Boarding
8.1
Overall
7.9
Crew
8.5
Comfort
7.9
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Entertainment
7.8
Food
7.2
Boarding
8.1
Overall
7.9
Crew
8.5
Comfort
7.9
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Entertainment
7.8
Food
7.2
Boarding
8.1
Overall
7.9
Crew
8.5
Comfort
7.9
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Entertainment
7.8
Food
7.2
Boarding
8.1
Overall
7.9
Crew
8.5
Comfort
7.9
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
Hounslow
Winchester
Croydon
Gatwick
Southend-on-Sea
Harrow
Eastleigh
Dartford
Dover
Orpington
Watford
Northampton
Borehamwood
Broadway
Chipping Norton
Hayes
Kingston upon Thames
Eastbourne
Slough
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 May 5, 2026.
San Diego and Heathrow flights
Browse other San Diego and Heathrow flight options. Last updated on May 5, 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 May 5, 2026.
Popular flight searches
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 2,558,603 searches. Data last updated May 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$181 | Average$1,190 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$538 | Average$823 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$552 | Average$994 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$567 | Average$938 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$569 | Average$824 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$578 | Average$706 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$593 | Average$945 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$621 | Average$884 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$623 | Average$670 | FlexibilityNo cancel fee | On-time72% |