$562+ Cheap flights from Heathrow (LHR) to San Diego (SAN)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/11. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SAN
Nov 24 — Dec 11
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 17 days in advance, depart on a Wednesday or Monday 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 October 25, 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 October 25, 2026.
This Alaska Airlines deal was found by Cheapflights users on 10/22. 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.
Fri 10/302:45 pm -
1 stop16h 14m
Tue 11/311:32 am -
1 stop16h 48m
Deal found 10/22![Alaska Airlines logo]()
$849
This Alaska Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/202:45 pm -
1 stop15h 52m
Tue 12/11:24 pm -
1 stop14h 56m
Deal found 10/24![Alaska Airlines logo]()
$851
This WAYA deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/711:45 am -
1 stop15h 26m
Mon 12/147:12 am -
1 stop20h 38m
Deal found 10/23![Multiple Airlines logo]()
$853
This Alaska Airlines deal was found by Cheapflights users on 10/21. 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.
Mon 11/232:45 pm -
1 stop16h 59m
Mon 12/76:43 pm -
1 stop33h 37m
Deal found 10/21![Alaska Airlines logo]()
$854
This Mytrip deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/236:30 am -
3 stops33h 25m
Mon 12/78:57 am -
2 stops17h 58m
Deal found 10/21![Multiple Airlines logo]()
$855
This Gotogate deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/236:35 am -
1 stop17h 10m
Mon 11/305:35 pm -
1 stop15h 30m
Deal found 10/24![Lufthansa logo]()
$856
This Justfly.com deal was found by Cheapflights users on 10/22. 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 11/16:40 am -
2 stops23h 22m
Wed 11/43:00 pm -
2 stops19h 30m
Deal found 10/22![Scandinavian Airlines logo]()
$857
This Alaska Airlines deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/232:45 pm -
1 stop26h 03m
Tue 12/86:43 pm -
1 stop33h 37m
Deal found 10/23![Alaska Airlines logo]()
$858
This Alaska Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/262:45 pm -
1 stop26h 03m
Wed 12/27:15 am -
1 stop21h 05m
Deal found 10/24![Alaska Airlines logo]()
$859
This Gotogate deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/236:35 am -
1 stop17h 10m
Mon 12/75:35 pm -
1 stop14h 15m
Deal found 10/23![Lufthansa logo]()
$860
This Alaska Airlines deal was found by Cheapflights users on 10/21. 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.
Tue 11/102:45 pm -
1 stop16h 05m
Tue 11/244:23 pm -
1 stop35h 57m
Deal found 10/21![Alaska Airlines logo]()
$861
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 October 25, 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 October 25, 2026.
This Alaska Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/262:45 pm -
1 stop26h 03m
Wed 12/27:15 am -
1 stop21h 05m
Deal found 10/24![Alaska Airlines logo]()
$859
This Scandinavian Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/56:40 am -
2 stops25h 06m
Mon 11/911:05 am -
3 stops26h 35m
Deal found 10/24![Scandinavian Airlines logo]()
$869
This United Airlines deal was found by Cheapflights users on 10/22. 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.
Mon 11/236:35 am -
1 stop17h 10m
Mon 12/74:45 pm -
1 stop12h 45m
Deal found 10/22![United Airlines logo]()
$892
This Delta deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/911:45 am -
2 stops18h 30m
Wed 12/166:15 am -
1 stop16h 50m
Deal found 10/22![Delta logo]()
$937
This American Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/712:45 pm -
Nonstop11h 25m
Wed 12/236:00 pm -
Nonstop10h 40m
Deal found 10/24![Multiple Airlines logo]()
$949
This Scandinavian Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/96:40 am -
2 stops25h 19m
Sun 11/156:20 am -
2 stops27h 20m
Deal found 10/24![Scandinavian Airlines logo]()
$879
This United Airlines deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/259:00 am -
2 stops19h 24m
Tue 12/89:43 am -
1 stop17h 32m
Deal found 10/23![United Airlines logo]()
$893
This Alaska Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/222:45 pm -
2 stops25h 35m
Wed 12/29:28 am -
2 stops18h 52m
Deal found 10/24![Alaska Airlines logo]()
$917
This Scandinavian Airlines deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/46:40 am -
2 stops25h 06m
Thu 11/1211:05 am -
2 stops26h 35m
Deal found 10/23![Scandinavian Airlines logo]()
$879
This Alaska Airlines deal was found by Cheapflights users on 10/21. 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 12/262:45 pm -
1 stop16h 19m
Tue 1/1212:39 pm -
1 stop15h 41m
Deal found 10/21![Alaska Airlines logo]()
$947
This Scandinavian Airlines deal was found by Cheapflights users on 10/22. 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 12/66:40 am -
2 stops22h 39m
Sun 12/1311:07 am -
3 stops22h 33m
Deal found 10/22![Scandinavian Airlines logo]()
$926
This Scandinavian Airlines deal was found by Cheapflights users on 10/20. 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 11/236:40 am -
2 stops24h 24m
Mon 12/74:11 pm -
3 stops21h 24m
Deal found 10/20![Scandinavian Airlines logo]()
$927
Last-minute flights from Heathrow to San DiegoDiscover last-minute flight deals from Heathrow to San Diego. Data last updated October 25, 2026 and is based on user searches.
Discover last-minute flight deals from Heathrow to San Diego. Data last updated October 25, 2026 and is based on user searches.
This Alaska Airlines deal was found by Cheapflights users on 10/22. 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.
Fri 10/302:45 pm -
1 stop16h 14m
Wed 11/411:32 am -
1 stop16h 48m
Deal found 10/22![Alaska Airlines logo]()
$849
This Justfly.com deal was found by Cheapflights users on 10/22. 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 11/16:40 am -
2 stops23h 22m
Wed 11/43:00 pm -
2 stops19h 30m
Deal found 10/22![Scandinavian Airlines logo]()
$857
This Alaska Airlines deal was found by Cheapflights users on 10/21. 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.
Tue 11/102:45 pm -
1 stop16h 05m
Tue 11/244:23 pm -
1 stop35h 57m
Deal found 10/21![Alaska Airlines logo]()
$861
This Alaska Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/202:45 pm -
1 stop16h 59m
Wed 12/21:24 pm -
1 stop14h 56m
Deal found 10/24![Alaska Airlines logo]()
$851
This Alaska Airlines deal was found by Cheapflights users on 10/21. 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.
Mon 11/232:45 pm -
1 stop16h 59m
Mon 12/76:43 pm -
1 stop33h 37m
Deal found 10/21![Alaska Airlines logo]()
$854
This Mytrip deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/236:30 am -
3 stops33h 25m
Mon 12/78:57 am -
2 stops17h 58m
Deal found 10/21![Multiple Airlines logo]()
$855
This Gotogate deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/236:35 am -
1 stop17h 10m
Mon 11/305:35 pm -
1 stop15h 30m
Deal found 10/24![Lufthansa logo]()
$856
This Alaska Airlines deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/232:45 pm -
1 stop26h 03m
Tue 12/86:43 pm -
1 stop33h 37m
Deal found 10/23![Alaska Airlines logo]()
$858
This Gotogate deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/236:35 am -
1 stop17h 10m
Mon 12/75:35 pm -
1 stop14h 15m
Deal found 10/23![Lufthansa logo]()
$860
This Alaska Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/262:45 pm -
1 stop26h 03m
Wed 12/27:15 am -
1 stop21h 05m
Deal found 10/24![Alaska Airlines logo]()
$859
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 October 25, 2026.
Search for one-way flight options from Heathrow to San Diego. Find affordable one-way fares based on user searches. Data last updated October 25, 2026.
This Expedia deal was found by Cheapflights users on 10/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/118:45 am -
1 stop15h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Lufthansa logo]()
$562
This Kiwi.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/262:50 pm -
3 stops37h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Multiple Airlines logo]()
$568
This United Airlines deal was found by Cheapflights users on 10/22. 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.
Tue 12/16:35 am -
1 stop17h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![United Airlines logo]()
$569
This CheapOair deal was found by Cheapflights users on 10/20. 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.
Wed 11/117:25 am -
1 stop20h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![JetBlue logo]()
$573
This Kiwi.com deal was found by Cheapflights users on 10/22. 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 11/292:50 pm -
3 stops35h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Multiple Airlines logo]()
$574
This Kiwi.com deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/1211:10 am -
3 stops37h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![Multiple Airlines logo]()
$575
This Kiwi.com deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/58:35 pm -
3 stops52h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Multiple Airlines logo]()
$577
This Kiwi.com deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1710:45 am -
3 stops41h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Multiple Airlines logo]()
$578
This Kiwi.com deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/108:50 pm -
3 stops29h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Multiple Airlines logo]()
$579
This United Airlines deal was found by Cheapflights users on 10/22. 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 1/209:00 am -
2 stops19h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![United Airlines logo]()
$580
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 October 25, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $849 (Alaska Airlines) |
One-way from | $562 (Expedia) |
Popular in | August |
Cheapest in | February |
Average price | $957 |
Good round-trip deal | $1,049 or less |
Good one-way deal | $592 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 7,457,451 searches. Data last updated October 25, 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
Wed 1/20
9:00 am-8:08 pm
2 stops19h 08m
San Diego
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$580
LondonSan Diego
LHR London Heathrow - SAN San Diego
LHRSAN
London Heathrow
Tue 1/12
6:35 am-3:45 pm
1 stop17h 10m
San Diego
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$581
LondonSan Diego
LHR London Heathrow - SAN San Diego
LHRSAN
London Heathrow
Thu 11/5
7:25 am-8:25 pm
1 stop21h 00m
San Diego
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$587
LondonSan Diego
LHR London Heathrow - SAN San Diego
LHRSAN
London Heathrow
Thu 1/14
7:25 am-8:23 pm
1 stop20h 58m
San Diego
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$592
Quickest round-trip
LondonSan Diego
LHR London Heathrow - SAN San Diego
LHRSAN
London Heathrow
Wed 1/13
12:45 pm-4:10 pm
Nonstop11h 25m
San Diego
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$599
LondonSan Diego
LHR London Heathrow - SAN San Diego
LHRSAN
London Heathrow
Tue 1/12
12:45 pm-4:10 pm
Nonstop11h 25m
San Diego
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$633
LondonSan Diego
LHR London Heathrow - SAN San Diego
LHRSAN
London Heathrow
Tue 1/5
4:35 pm-12:08 pm
1 stop27h 33m
San Diego
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$636
LondonSan Diego
LHR London Heathrow - SAN San Diego
LHRSAN
London Heathrow
Thu 12/3
4:40 pm-3:45 pm
1 stop31h 05m
San Diego
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$636
LondonSan Diego
LHR London Heathrow - SAN San Diego
LHRSAN
London Heathrow
Sat 1/23
9:00 am-8:08 pm
2 stops19h 08m
San Diego
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$639
LondonSan Diego
LHR London Heathrow - SAN San Diego
LHRSAN
London Heathrow
Tue 12/15
9:00 am-8:37 pm
2 stops19h 37m
San Diego
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$642
Showing 1-10 of 23 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 October.
| 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
Delays
How far ahead should I book a flight from London Heathrow Airport to San Diego?
Booking 16 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 $691). Flying from London Heathrow Airport to San Diego in August is currently the most expensive (average of $1,359). 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 October 25, 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 16% of weekly flights between London and San Diego have experienced delays in the past year, with the average delay time being 142 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 16% 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
Our travel experts
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 October 25, 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.
Overall
7.0
Comfort
7.1
Food
6.4
Crew
7.9
Entertainment
6.8
Boarding
7.4
Reviews
1 / 20
10.0
ExcellentRon,Aug 2026
LHR - LAX
Overall
7.0
Comfort
7.1
Food
6.4
Crew
7.9
Entertainment
6.8
Boarding
7.4
Reviews
1 / 20
10.0
ExcellentRon,Aug 2026
LHR - LAX
Overall
7.0
Comfort
7.1
Food
6.4
Crew
7.9
Entertainment
6.8
Boarding
7.4
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
National City
Chula Vista
San Ysidro
Poway
Coronado
La Mesa
Julian
Santee
Lemon Grove
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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 7,457,451 searches. Data last updated October 25, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$654 | Average$920 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$735 | Average$1,315 | FlexibilityNo cancel fee | On-time71% |