Cheap flights from London Heathrow Airport to San Diego from £452
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 2/11. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SAN
2 Sep — 9 Sep1
Return
1 adult
Economy
Cheapflights Tip: The best prices from London Heathrow to San Diego are usually found in January or February, booked 85 days in advance, depart on a Saturday or Friday and return on a Monday
Cheap 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 28 August 2025.
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 28 August 2025.
Mon 6/1017:40LHR - SAN
2 stops30h 11mAir Canada
Mon 20/1008:10SAN - LHR
2 stops19h 40mAir Canada
Deal found 26/8£483
Wed 3/914:55LHR - SAN
Nonstop11h 05mBritish Airways
Tue 30/916:40SAN - LHR
1 stop12h 10mBritish Airways
Deal found 27/8£487
Mon 6/1009:30LHR - SAN
1 stop18h 05mUnited Airlines
Mon 20/1021:20SAN - LHR
1 stop15h 20mUnited Airlines
Deal found 27/8£489
Wed 24/914:05LHR - SAN
2 stops31h 15mMultiple Airlines
Wed 22/1006:53SAN - LHR
2 stops15h 37mMultiple Airlines
Deal found 27/8£489
Sat 20/919:30LHR - SAN
2 stops30h 32mBritish Airways
Thu 2/1012:36SAN - LHR
1 stop14h 14mBritish Airways
Deal found 27/8£490
Tue 23/909:30LHR - SAN
1 stop18h 05mAir Canada
Tue 30/908:10SAN - LHR
1 stop14h 20mAir Canada
Deal found 26/8£491
Tue 23/909:30LHR - SAN
1 stop18h 05mUnited Airlines
Tue 30/916:05SAN - LHR
1 stop12h 15mUnited Airlines
Deal found 25/8£492
Thu 18/915:10LHR - SAN
1 stop14h 40mBritish Airways
Mon 6/1016:20SAN - LHR
1 stop12h 30mBritish Airways
Deal found 27/8£493
Wed 24/911:25LHR - SAN
1 stop14h 04mUnited Airlines
Wed 22/1013:40SAN - LHR
1 stop13h 45mUnited Airlines
Deal found 26/8£494
Best flights from Heathrow to San Diego
Discover carefully curated flight deals from Heathrow to San Diego that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 28 August 2025.
Mon 6/1017:40LHR - SAN
2 stops30h 11mAir Canada
Mon 20/1008:10SAN - LHR
2 stops19h 40mAir Canada
Deal found 26/8£483
Thu 5/216:40LHR - SAN
1 stop31h 05mUnited Airlines
Thu 19/212:10SAN - LHR
1 stop14h 05mUnited Airlines
Deal found 27/8£486
Fri 20/207:40LHR - SAN
1 stop16h 05mLufthansa
Tue 24/212:10SAN - LHR
1 stop14h 05mLufthansa
Deal found 26/8£486
Wed 26/1107:35LHR - SAN
2 stops20h 43mBritish Airways
Sun 14/1207:21SAN - LHR
2 stops22h 09mBritish Airways
Deal found 27/8£489
Fri 20/209:00LHR - SAN
2 stops20h 47mSWISS
Tue 24/216:04SAN - LHR
2 stops19h 11mSWISS
Deal found 25/8£489
Fri 20/206:35LHR - SAN
1 stop17h 10mUnited Airlines
Tue 24/212:45SAN - LHR
1 stop12h 55mUnited Airlines
Deal found 25/8£486
Wed 24/914:05LHR - SAN
2 stops31h 15mAir Canada
Wed 22/1008:10SAN - LHR
1 stop14h 20mAir Canada
Deal found 26/8£489
Thu 6/1106:35LHR - SAN
1 stop17h 10mUnited Airlines
Tue 18/1112:43SAN - LHR
1 stop12h 57mUnited Airlines
Deal found 25/8£487
Thu 9/1006:55LHR - SAN
1 stop16h 30mUnited Airlines
Thu 16/1006:53SAN - LHR
1 stop18h 47mUnited Airlines
Deal found 24/8£487
Mon 6/1009:30LHR - SAN
1 stop18h 05mUnited Airlines
Mon 20/1021:20SAN - LHR
1 stop15h 20mUnited Airlines
Deal found 27/8£489
Direct flights from Heathrow to San Diego
Explore direct flight options from Heathrow to San Diego based on user searches, and compare prices and availability for your desired travel dates. Data last updated 28 August 2025.
Thu 9/1011:30LHR - SAN
Nonstop11h 20mBritish Airways
Sun 16/1118:00SAN - LHR
Nonstop10h 35mBritish Airways
Deal found 27/8£497
Sat 8/1112:50LHR - SAN
Nonstop11h 20mBritish Airways
Fri 14/1118:00SAN - LHR
Nonstop10h 35mBritish Airways
Deal found 27/8£500
Mon 22/911:30LHR - SAN
Nonstop11h 20mBritish Airways
Mon 6/1016:40SAN - LHR
Nonstop10h 45mBritish Airways
Deal found 27/8£502
Thu 18/914:55LHR - SAN
Nonstop11h 05mAmerican Airlines
Mon 6/1016:40SAN - LHR
Nonstop10h 45mAmerican Airlines
Deal found 27/8£506
Mon 22/911:30LHR - SAN
Nonstop11h 20mBritish Airways
Wed 1/1016:40SAN - LHR
Nonstop10h 45mBritish Airways
Deal found 27/8£515
Thu 9/1011:30LHR - SAN
Nonstop11h 20mAmerican Airlines
Sun 16/1118:00SAN - LHR
Nonstop10h 35mAmerican Airlines
Deal found 27/8£517
Thu 2/1014:55LHR - SAN
Nonstop11h 05mBritish Airways
Sun 5/1019:50SAN - LHR
Nonstop10h 30mBritish Airways
Deal found 27/8£518
Mon 22/911:30LHR - SAN
Nonstop11h 20mAmerican Airlines
Wed 1/1016:40SAN - LHR
Nonstop10h 45mAmerican Airlines
Deal found 27/8£520
Mon 6/1011:30LHR - SAN
Nonstop11h 20mAmerican Airlines
Mon 20/1019:50SAN - LHR
Nonstop10h 30mAmerican Airlines
Deal found 26/8£523
Mon 22/911:30LHR - SAN
Nonstop11h 20mBritish Airways
Fri 3/1019:50SAN - LHR
Nonstop10h 30mBritish Airways
Deal found 27/8£531
Last-minute flights from Heathrow to San Diego
Discover last-minute flight deals from Heathrow to San Diego. Data last updated 28 August 2025 and is based on user searches.
Wed 3/914:55LHR - SAN
Nonstop11h 05mBritish Airways
Tue 30/916:40SAN - LHR
1 stop12h 10mBritish Airways
Deal found 27/8£487
Thu 18/915:10LHR - SAN
1 stop14h 40mBritish Airways
Mon 6/1016:20SAN - LHR
1 stop12h 30mBritish Airways
Deal found 27/8£493
Fri 19/915:10LHR - SAN
1 stop15h 26mBritish Airways
Tue 30/912:38SAN - LHR
1 stop14h 12mBritish Airways
Deal found 27/8£492
Sat 20/919:30LHR - SAN
2 stops30h 32mBritish Airways
Thu 2/1012:36SAN - LHR
1 stop14h 14mBritish Airways
Deal found 27/8£490
Sat 20/911:45LHR - SAN
2 stops17h 02mDelta
Wed 8/1015:59SAN - LHR
1 stop14h 36mDelta
Deal found 27/8£497
Tue 23/909:30LHR - SAN
1 stop18h 05mAir Canada
Tue 30/908:10SAN - LHR
1 stop14h 20mAir Canada
Deal found 26/8£491
Tue 23/909:30LHR - SAN
1 stop18h 05mUnited Airlines
Tue 30/916:05SAN - LHR
1 stop12h 15mUnited Airlines
Deal found 25/8£492
Wed 24/914:05LHR - SAN
2 stops31h 15mMultiple Airlines
Wed 22/1006:53SAN - LHR
2 stops15h 37mMultiple Airlines
Deal found 27/8£489
Wed 24/911:25LHR - SAN
1 stop14h 04mUnited Airlines
Wed 22/1013:40SAN - LHR
1 stop13h 45mUnited Airlines
Deal found 26/8£494
Wed 24/914:05LHR - SAN
2 stops31h 15mMultiple Airlines
Thu 2/1011:08SAN - LHR
2 stops16h 42mMultiple Airlines
Deal found 26/8£495
Wed 24/914:05LHR - SAN
2 stops31h 15mAir Canada
Thu 2/1012:25SAN - LHR
1 stop15h 25mAir Canada
Deal found 25/8£496
One-way flights from Heathrow to San Diego
Search for one-way flight options from Heathrow to San Diego. Find affordable one-way fares based on user searches. Data last updated 28 August 2025.
Sun 2/1114:50LHR - SAN
3 stops29h 13mMultiple Airlines
Deal found 27/8£452
Tue 30/914:10LHR - SAN
2 stops27h 16mMultiple Airlines
Deal found 27/8£459
Fri 3/1014:10LHR - SAN
2 stops27h 16mMultiple Airlines
Deal found 27/8£461
Mon 29/913:55LHR - SAN
2 stops30h 36mMultiple Airlines
Deal found 27/8£462
Fri 26/908:25LHR - SAN
1 stop18h 33mJetBlue
Deal found 25/8£463
Sat 27/914:10LHR - SAN
2 stops29h 58mWestJet
Deal found 25/8£464
Sat 18/1014:10LHR - SAN
1 stop31h 10mWestJet
Deal found 26/8£466
Sat 20/912:00LHR - SAN
3 stops27h 41mMultiple Airlines
Deal found 26/8£468
Thu 25/908:15LHR - SAN
1 stop19h 15mJetBlue
Deal found 25/8£469
Sun 28/914:10LHR - SAN
2 stops31h 10mMultiple Airlines
Deal found 27/8£471
Sat 20/914:10LHR - SAN
2 stops29h 58mWestJet
Deal found 27/8£472
Cheapflights Fare Finder
Customise 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 858,174 searches. Data last updated 28 August 2025.
Use the filters below to find and compare flights from London Heathrow Airport to San Diego that are best for you.
Fly from
Heathrow
Fly to
San Diego
Route
Depart
Return
Price
LondonSan Diego
LHR - SAN
LHRSAN
London Heathrow
Mon 6/10
17:40-15:51
2 stops30h 11m
San Diego
Mon 20/10
08:10-11:50
2 stops19h 40m
£483
LondonSan Diego
LHR - SAN
LHRSAN
London Heathrow
Thu 5/2
16:40-15:45
1 stop31h 05m
San Diego
Thu 19/2
12:10-10:15
1 stop14h 05m
£486
LondonSan Diego
LHR - SAN
LHRSAN
London Heathrow
Fri 20/2
07:40-15:45
1 stop16h 05m
San Diego
Tue 24/2
12:10-10:15
1 stop14h 05m
£486
LondonSan Diego
LHR - SAN
LHRSAN
London Heathrow
Fri 20/2
06:35-15:45
1 stop17h 10m
San Diego
Tue 24/2
12:45-09:40
1 stop12h 55m
£486
LondonSan Diego
LHR - SAN
LHRSAN
London Heathrow
Thu 6/11
06:35-15:45
1 stop17h 10m
San Diego
Tue 18/11
12:43-09:40
1 stop12h 57m
£487
LondonSan Diego
LHR - SAN
LHRSAN
London Heathrow
Thu 9/10
06:55-15:25
1 stop16h 30m
San Diego
Thu 16/10
06:53-09:40
1 stop18h 47m
£487
LondonSan Diego
LHR - SAN
LHRSAN
London Heathrow
Wed 26/11
07:35-20:18
2 stops20h 43m
San Diego
Sun 14/12
07:21-13:30
2 stops22h 09m
£489
LondonSan Diego
LHR - SAN
LHRSAN
London Heathrow
Fri 20/2
09:00-21:47
2 stops20h 47m
San Diego
Tue 24/2
16:04-19:15
2 stops19h 11m
£489
LondonSan Diego
LHR - SAN
LHRSAN
London Heathrow
Mon 6/10
09:30-19:35
1 stop18h 05m
San Diego
Mon 20/10
21:20-20:40
1 stop15h 20m
£489
LondonSan Diego
LHR - SAN
LHRSAN
London Heathrow
Wed 24/9
14:05-13:20
2 stops31h 15m
San Diego
Wed 22/10
08:10-06:30
1 stop14h 20m
£489
Flights are sorted by cheapest return flights first.
Deals found on 27/8
Showing 1-10 of 19 results
1
2
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.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from London Heathrow Airport to San Diego
Prices
Airlines
More
How far ahead should I book a flight from London Heathrow Airport to San Diego?
Use this chart to determine the optimal time to book a return flight from Heathrow to San Diego. Price data was last updated on 22 August 2025.
The best time to book flights from London Heathrow Airport to San Diego is 85 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from London Heathrow Airport to San Diego?
Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to San Diego (average of £585). Flying from London Heathrow Airport to San Diego in July is currently the most expensive (average of £920). 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 28 August 2025.
When flying from London Heathrow Airport to San Diego, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 8% versus a flight in the afternoon.
How much does it cost for a return flight from London Heathrow Airport to San Diego?
Weekly flight availability from London Heathrow Airport to San Diego
Explore weekly flight availability from Heathrow to San Diego. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 28 August 2025.
The most flights from LHR to SAN are scheduled on a Monday (9 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (3 on average).
What’s the top stopover airport for flights from London Heathrow Airport to San Diego?
Share of one-stop return flights from London Heathrow Airport to San Diego chosen by Cheapflights users in the past 12 months, using the same stopover each way.
Denver (DEN) – chosen by Cheapflights users on 29% of one-stop itineraries from London Heathrow Airport to San Diego on Cheapflights.
What’s the fastest stopover option from London Heathrow Airport to San Diego?
Shortest average travel time for one-stop one-way flights from London Heathrow Airport to San Diego, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.
Flights via Amsterdam (AMS) have the shortest average one-way travel time for one-stop routes: 13h 32m.
What’s the fastest stopover option from London Heathrow Airport to San Diego?
Shortest average travel time for one-stop one-way flights from London Heathrow Airport to San Diego, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.
Flights via Amsterdam (AMS) have the shortest average one-way travel time for one-stop routes: 13h 32m.
Which airport typically offers the quickest stopover for flights from London Heathrow Airport to San Diego?
Average stopover duration for one-stop one-way flights from London Heathrow Airport to San Diego, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Amsterdam (AMS) offer the fastest connection on this route, with an average stopover time of 1h 01m.
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 28 August 2025.
Read reviews from past customers who have flown with Finnair, Virgin Atlantic, andIberia
from London Heathrow Airport to San Diego. 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.
I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
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.
What airport do you fly into for flights to San Diego from London Heathrow?
San Diego (SAN) is the airport you will fly into if you book a flight from London Heathrow to San Diego. You should not have trouble finding flights to San Diego from London Heathrow; the airport handles an average of 8 inbound flights from London Heathrow per day. You should also have plenty of airline options to choose from since 11 airlines have flights to the San Diego airport from London Heathrow. It is only a 2.6 mi journey from San Diego (SAN) to San Diego’s city center.
How long is the flight from London Heathrow Airport to San Diego?
Air Canada, United Airlines, and Lufthansa can get you from London Heathrow Airport to San Diego in just under 16h 05m. Your travel time can differ by up to 15h. London Heathrow Airport and San Diego are separated by a distance of 5469 mi. This flight may include one or multiple stops.
What are the cheapest airlines flying from London Heathrow Airport to San Diego round-trip?
Flying on Air France is currently your cheapest option to San Diego, with prices starting at £370. Additional return tickets that might be worth considering are offered by Air Canada and Virgin Atlantic, with the lowest prices starting at £385 and £399, respectively. You may be able to fly from London Heathrow Airport to San Diego for 34% less than the average price by searching for these airlines.
What are the most reliable airlines from London Heathrow Airport to San Diego?
No one likes to see their flight delayed. When booking a flight from London Heathrow Airport to San Diego consider choosing American Airlines (71%), Alaska Airlines (71%) or British Airways (71%) as they are the most reliable in getting you off to your destination on time.
What are the cheapest flights from London Heathrow Airport to San Diego?
Looking at all options, your cheapest flight can be booked for £467. While the most popular route (London Heathrow - San Diego) can be booked for £446 on average our data indicates £2,013 when flying from London Heathrow Airport to San Diego.
Can I find deals for business class flights from Heathrow to San Diego?
Yes. Cheapflights offers flight deals from Heathrow to San Diego by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from London Heathrow Airport to San Diego?
Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to San Diego (average of £585). Flying from London Heathrow Airport to San Diego in July is currently the most expensive (average of £920). 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.
Book flights to San Diego if you plan to visit one of these locations
Coronado
El Cajon
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Fly from Heathrow to San Diego on these airlines
Choose from the following airlines for your flight from Heathrow to San Diego. Flights are based on user searches made on Cheapflights and were last updated on 28 August 2025.
Explore flights to San Diego departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 28 August 2025.
Discover the top 10 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 858,174 searches. Data last updated 28 August 2025.
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Heathrow to San Diego?
When you search for this flight from Heathrow to San Diego, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.
Why should you use Cheapflights to find cheap flight tickets from Heathrow to San Diego?
It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Heathrow to San Diego.
Can Cheapflights find flights from Heathrow to San Diego with no change fees?
Need flexible booking options for your flight to San Diego from Heathrow? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.
Can Cheapflights notify me if prices for flights from Heathrow to San Diego become cheaper?
Not ready to book yet? You can track prices for flights from Heathrow to San Diego on Cheapflights with our Price Alert feature and get notified when better prices are available.
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