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Cheap flights from London to San Diego from £417

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London to San Diego departing on 17/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap return flights

Logo
08:30 - 19:35LHR-SAN
19h 05m2 stops
Logo
11:08 - 11:50SAN-LHR
16h 42m2 stops
£467
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Sat, 27 Sep - Wed, 1 Oct
American Airlines Logo
10:25 - 20:00LGW-SAN
17h 35m2 stops
American Airlines Logo
06:15 - 09:20SAN-LGW
19h 05m2 stops
£468American Airlines
Find Deal
Thu, 9 Oct - Thu, 16 Oct
Air Canada Logo
13:25 - 00:13LHR-SAN
18h 48m2 stops
Air Canada Logo
12:25 - 11:20SAN-LHR
14h 55m1 stop
£468Air Canada
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Sun, 23 Nov - Wed, 3 Dec
British Airways Logo
12:50 - 16:10LHR-SAN
11h 20mdirect
British Airways Logo
18:00 - 12:35SAN-LHR
10h 35mdirect
£471British Airways
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Sat, 22 Nov - Tue, 2 Dec
Lufthansa Logo
06:35 - 15:45LHR-SAN
17h 10m1 stop
Lufthansa Logo
13:00 - 09:40SAN-LHR
12h 40m1 stop
£474Lufthansa
Find Deal
Thu, 11 Dec - Sat, 10 Jan
British Airways Logo
08:20 - 15:53LHR-SAN
15h 33m1 stop
British Airways Logo
16:40 - 11:25SAN-LHR
10h 45mdirect
£475British Airways
Find Deal
Sat, 27 Sep - Wed, 22 Oct
Lufthansa Logo
08:45 - 15:45LHR-SAN
15h 00m1 stop
Lufthansa Logo
09:55 - 07:25SAN-LHR
13h 30m1 stop
£477Lufthansa
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Wed, 10 Dec - Tue, 6 Jan
Virgin Atlantic Logo
09:20 - 23:14LCY-SAN
21h 54m2 stops
Virgin Atlantic Logo
07:20 - 08:10SAN-LCY
16h 50m2 stops
£481Virgin Atlantic
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Wed, 5 Nov - Tue, 11 Nov
Virgin Atlantic Logo
09:20 - 23:14LCY-SAN
21h 54m2 stops
Virgin Atlantic Logo
07:20 - 08:10SAN-LCY
16h 50m2 stops
£511Virgin Atlantic
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Wed, 5 Nov - Sun, 9 Nov
Iberia Logo
11:45 - 08:34LGW-SAN
28h 49m2 stops
Iberia Logo
06:30 - 19:00SAN-LGW
28h 30m2 stops
£583Iberia
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Wed, 19 Nov - Fri, 12 Dec

American Airlines flights from London to San Diego

Our best American Airlines deals on London to San Diego flight tickets
American Airlines
9 Oct
LGW10:25London Gatwick
17h 35m
2 stops
SAN20:00San Diego
16 Oct
SAN06:15San Diego
19h 05m
2 stops
LGW09:20London Gatwick
£468
Find similar
American Airlines
17 Sept
LHR13:30London Heathrow
16h 13m
1 stop
SAN21:43San Diego
29 Sept
SAN16:40San Diego
10h 45m
LHR11:25London Heathrow
£471
Find similar
American Airlines
3 Nov
LHR12:50London Heathrow
11h 20m
SAN16:10San Diego
17 Nov
SAN18:00San Diego
10h 35m
LHR12:35London Heathrow
£475
Find similar

Lufthansa flights from London to San Diego

Our best Lufthansa deals on London to San Diego flight tickets
Lufthansa
11 Dec
LHR06:35London Heathrow
17h 10m
1 stop
SAN15:45San Diego
10 Jan
SAN13:00San Diego
12h 40m
1 stop
LHR09:40London Heathrow
£474
Find similar
Lufthansa
10 Dec
LHR08:45London Heathrow
15h 00m
1 stop
SAN15:45San Diego
6 Jan
SAN09:55San Diego
13h 30m
1 stop
LHR07:25London Heathrow
£477
Find similar
Lufthansa
19 Sept
LHR14:50London Heathrow
13h 35m
1 stop
SAN20:25San Diego
27 Sept
SAN10:38San Diego
12h 47m
1 stop
LHR07:25London Heathrow
£494
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momondo Fare Finder

 
Customise your flight search to find flights from London 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, momondo users made 279,928 searches. Data last updated 12 September 2025.
Use the filters below to find and compare flights from London to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Sat 27/9

08:30-19:35

2 stops19h 05m

San Diego

Wed 1/10

11:08-11:50

2 stops16h 42m

£467

LondonSan Diego

LGW - SAN

LGWSAN

London Gatwick

Thu 9/10

10:25-20:00

2 stops17h 35m

San Diego

Thu 16/10

06:15-09:20

2 stops19h 05m

£468

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Sun 23/11

13:25-00:13

2 stops18h 48m

San Diego

Wed 3/12

12:25-11:20

1 stop14h 55m

£468

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Sat 22/11

12:50-16:10

Nonstop11h 20m

San Diego

Tue 2/12

18:00-12:35

Nonstop10h 35m

£471

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Thu 11/12

06:35-15:45

1 stop17h 10m

San Diego

Sat 10/1

13:00-09:40

1 stop12h 40m

£474

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Sat 27/9

08:20-15:53

1 stop15h 33m

San Diego

Wed 22/10

16:40-11:25

Nonstop10h 45m

£475

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Wed 10/12

08:45-15:45

1 stop15h 00m

San Diego

Tue 6/1

09:55-07:25

1 stop13h 30m

£477

LondonSan Diego

LCY - SAN

LCYSAN

London City

Wed 5/11

09:20-23:14

2 stops21h 54m

San Diego

Tue 11/11

07:20-08:10

2 stops16h 50m

£481

LondonSan Diego

LCY - SAN

LCYSAN

London City

Wed 5/11

09:20-23:14

2 stops21h 54m

San Diego

Sun 9/11

07:20-08:10

2 stops16h 50m

£511

LondonSan Diego

LGW - SAN

LGWSAN

London Gatwick

Wed 19/11

11:45-08:34

2 stops28h 49m

San Diego

Fri 12/12

06:30-19:00

2 stops28h 30m

£582

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Diego from

How to get the cheapest flight ticket from London to San Diego

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between London and San Diego?

What is the cheapest month to fly to San Diego?

If you don’t want to visit San Diego in February, then you should wait until March to fly from London, when ticket prices are also cheap, with an average price of £489.

What is the cheapest day to depart on your flight to San Diego?

The cheapest day to depart from London to San Diego is on a Saturday when prices can be found for as low as £550. Flights from London to San Diego on a Sunday will generally be more expensive and average around £594. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to San Diego?

In the morning is the cheapest time of day to fly from London to San Diego when you can find flight prices for as low as £549. Flying to San Diego in the morning is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the afternoon because they tend to be around £617. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest London to San Diego flight route?

Fly from London Heathrow to San Diego for the best London - San Diego flight prices

How far in advance should I book a flight to San Diego?

You are more likely to see cheaper flights to San Diego from London when booking weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around £565 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from London for as low as £498 on momondo.

What cabin class options are available on London to San Diego flights?

There are 4 cabin classes available to choose from on London to San Diego flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on London to San Diego flights?

You could potentially save up to 35% on your flight if you consider stops on a London to San Diego flight.

How have London to San Diego flight prices changed over time?

As of September 2025, prices for London to San Diego flights are approximately 12% cheaper when compared to flights at the same time last year.

When to book flights from London to San Diego

Are you open to changing your travel dates? Check out the ideal times to fly from London to San Diego according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap London to San Diego (LON to SAN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London to San Diego

Best price found

£674

Fastest flight time

11h 05m

Direct flights

Every day

Airports in San Diego

1 airport
The best one-way flight to San Diego from London in the past 72 hours is £674. The best return flight deal from London to San Diego found on momondo in the last 72 hours is £554.
The fastest flight from London to San Diego takes 11h 05m
Direct flights go from London to San Diego every day.
There is 1 airport near San Diego: San Diego (SAN)
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  • How far is London to San Diego by plane?

    The straight-line distance from London to San Diego is 5478.3 mi. In terms of flight time, this usually takes a little over 11h 05m.

  • When did momondo last update prices for flights from London to San Diego Airport?

    Prices for flights from London to San Diego Airport are updated daily.

  • How many operators does momondo search for flights from London to San Diego Airport?

  • How old do you have to be to fly from London to San Diego Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London to San Diego Airport.

  • What documentation or ID do you need to fly to San Diego Airport?

    The travel and health documents you'll need for your trip to San Diego Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Diego Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from London to San Diego?

  • What is the most popular airline from London to San Diego?

Best airlines flying from London to San Diego

Compare and see reviews for airlines that fly from London to San Diego with momondo
Airline
Rating
Free Cancellation
Price
Air FrancePriceFrom £368Free CancellationRating
7.4
1,469 reviews
Search Air France flights
Air CanadaPriceFrom £383Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights
Virgin AtlanticPriceFrom £397Free CancellationRating
7.4
664 reviews
Search Virgin Atlantic flights
British AirwaysPriceFrom £398Free CancellationRating
6.6
7,361 reviews
Search British Airways flights
LufthansaPriceFrom £406Free CancellationRating
6.8
7,409 reviews
Search Lufthansa flights
United AirlinesPriceFrom £411Free CancellationRating
7.4
8,937 reviews
Search United Airlines flights
American AirlinesPriceFrom £413Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
FinnairPriceFrom £416Free CancellationRating
7.6
1,323 reviews
Search Finnair flights
KLMPriceFrom £422Free CancellationRating
7.8
1,385 reviews
Search KLM flights
IberiaPriceFrom £476Free CancellationRating
7.0
2,929 reviews
Search Iberia flights

  • Finnair Flights From London to San Diego

    Across 6 Finnair flights from London to San Diego this week, the average price was £746, with the best Finnair deals starting from £563 round-trip. 1,323 users have rated Finnair on momondo, with an average score of 7.6/10.

  • American Airlines Flights From London to San Diego

    The best American Airlines deal for London to San Diego flight tickets found on momondo in the last 72 hours was £559, round-trip. It should be noted that an average American Airlines flight deal for this route in this time was higher, at £834 round-trip. American Airlines operates 13 flights out of London into San Diego in an average week, so prices vary by time and availability. 10,000 American Airlines reviews by users on momondo have scored the airline at 7.2/10.

Travelling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
Coronado
Chula Vista

Why use momondo?

Why should I use momondo to find a flight deal from London to San Diego?

Finding the right flight to San Diego from London is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to San Diego quick and easy, saving you time and money.

Can I find flights from London to San Diego with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to San Diego from London with this policy.

How can momondo help me find flights from London to San Diego?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from London to San Diego.

I’m not ready to book a flight from London to San Diego right now. Can momondo alert me if prices change?

Price alerts on flights to San Diego from London are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your San Diego trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
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