Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from London to San Diego from £396

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 18/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from London to San Diego

Cheap return flights

Enter your travel dates to find the best prices.
Lufthansa Logo
08:45 - 15:45LHR-SAN
15h 00m1 stop
Lufthansa Logo
12:55 - 09:40SAN-LHR
12h 45m1 stop
£473Lufthansa
Find Deal
ons., 18 feb. - tir., 24 feb.
Lufthansa Logo
08:45 - 15:45LHR-SAN
15h 00m1 stop
Lufthansa Logo
17:45 - 07:25SAN-LHR
29h 40m1 stop
£477Lufthansa
Find Deal
tir., 25 nov. - søn., 14 dec.
Icelandair Logo
08:05 - 20:02LHR-SAN
19h 57m1 stop
Icelandair Logo
13:57 - 06:55SAN-LHR
32h 58m2 stops
£487Icelandair
Find Deal
man., 24 nov. - tor., 4 dec.
United Airlines Logo
13:30 - 00:13LHR-SAN
18h 43m2 stops
United Airlines Logo
10:23 - 07:30SAN-LHR
13h 07m1 stop
£496United Airlines
Find Deal
tir., 25 nov. - tir., 2 dec.
United Airlines Logo
09:30 - 20:49LHR-SAN
19h 19m2 stops
United Airlines Logo
09:00 - 07:55SAN-LHR
14h 55m2 stops
£502United Airlines
Find Deal
ons., 18 feb. - tir., 24 feb.
British Airways Logo
12:50 - 16:10LHR-SAN
11h 20mdirect
British Airways Logo
14:04 - 11:35SAN-LHR
13h 31m1 stop
£506British Airways
Find Deal
ons., 18 feb. - tir., 24 feb.
British Airways Logo
12:50 - 16:10LHR-SAN
11h 20mdirect
British Airways Logo
09:37 - 06:50SAN-LHR
13h 13m1 stop
£525British Airways
Find Deal
man., 24 nov. - tor., 4 dec.
American Airlines Logo
11:20 - 19:19LGW-SAN
39h 59m2 stops
American Airlines Logo
22:30 - 09:00SAN-LGW
26h 30m2 stops
£544American Airlines
Find Deal
fre., 20 feb. - tir., 24 feb.
Virgin Atlantic Logo
08:55 - 18:18LHR-SAN
17h 23m1 stop
Virgin Atlantic Logo
07:50 - 07:05SAN-LHR
15h 15m1 stop
£545Virgin Atlantic
Find Deal
tor., 11 dec. - tor., 18 dec.
Virgin Atlantic Logo
12:30 - 21:13LHR-SAN
16h 43m1 stop
Virgin Atlantic Logo
13:25 - 10:00SAN-LHR
12h 35m1 stop
£547Virgin Atlantic
Find Deal
man., 24 nov. - tir., 9 dec.

Lufthansa flights from London to San Diego

Our best Lufthansa deals on London to San Diego flight tickets
Lufthansa
18 Feb
LHR08:45London Heathrow
15h 00m
1 stop
SAN15:45San Diego
24 Feb
SAN12:55San Diego
12h 45m
1 stop
LHR09:40London Heathrow
£473
Find similar
Lufthansa
25 Nov
LHR08:45London Heathrow
15h 00m
1 stop
SAN15:45San Diego
14 Dec
SAN17:45San Diego
29h 40m
1 stop
LHR07:25London Heathrow
£477
Find similar
Lufthansa
5 Dec
LHR07:40London Heathrow
16h 05m
1 stop
SAN15:45San Diego
11 Dec
SAN12:50San Diego
12h 50m
1 stop
LHR09:40London Heathrow
£506
Find similar

Icelandair flights from London to San Diego

Our best Icelandair deals on London to San Diego flight tickets
Icelandair
24 Nov
LHR08:05London Heathrow
19h 57m
1 stop
SAN20:02San Diego
4 Dec
SAN13:57San Diego
32h 58m
2 stops
LHR06:55London Heathrow
£487
Find similar
Icelandair
9 Dec
LHR12:20London Heathrow
30h 19m
2 stops
SAN10:39San Diego
11 Dec
SAN13:57San Diego
32h 58m
2 stops
LHR06:55London Heathrow
£500
Find similar
Icelandair
2 Mar
LHR09:20London Heathrow
36h 37m
1 stop
SAN13:57San Diego
1 Jun
SAN20:30San Diego
16h 15m
1 stop
LHR20:45London Heathrow
£501
Find similar

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 29 oktober 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

ons. 18/2

08:45-15:45

1 stop15h 00m

San Diego

tir. 24/2

12:55-09:40

1 stop12h 45m

£473

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

tir. 25/11

08:45-15:45

1 stop15h 00m

San Diego

søn. 14/12

17:45-07:25

1 stop29h 40m

£477

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

man. 24/11

08:05-20:02

1 stop19h 57m

San Diego

tor. 4/12

13:57-06:55

2 stops32h 58m

£487

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

tir. 25/11

13:30-00:13

2 stops18h 43m

San Diego

tir. 2/12

10:23-07:30

1 stop13h 07m

£496

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

ons. 18/2

09:30-20:49

2 stops19h 19m

San Diego

tir. 24/2

09:00-07:55

2 stops14h 55m

£502

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

ons. 18/2

12:50-16:10

Nonstop11h 20m

San Diego

tir. 24/2

14:04-11:35

1 stop13h 31m

£506

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

man. 24/11

12:50-16:10

Nonstop11h 20m

San Diego

tor. 4/12

09:37-06:50

1 stop13h 13m

£525

LondonSan Diego

LGW - SAN

LGWSAN

London Gatwick

fre. 20/2

11:20-19:19

2 stops39h 59m

San Diego

tir. 24/2

22:30-09:00

2 stops26h 30m

£544

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

tor. 11/12

08:55-18:18

1 stop17h 23m

San Diego

tor. 18/12

07:50-07:05

1 stop15h 15m

£545

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

man. 24/11

12:30-21:13

1 stop16h 43m

San Diego

tir. 9/12

13:25-10:00

1 stop12h 35m

£547

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 £511.

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 Monday when prices can be found for as low as £568. Flights from London to San Diego on a Sunday will generally be more expensive and average around £586. 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 evening is the cheapest time of day to fly from London to San Diego when you can find flight prices for as low as £560. Flying to San Diego in the evening 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 £636. 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 £580 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 £529 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 34% 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 October 2025, prices for London to San Diego flights are approximately 5% more expensive 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

£468

Fastest flight time

11h 20m

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 £468. The best return flight deal from London to San Diego found on momondo in the last 72 hours is £519.
The fastest flight from London to San Diego takes 11h 20m
Direct flights go from London to San Diego every day.
There is 1 airport near San Diego: San Diego (SAN)
Search flight deals

  • 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 20m.

  • 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 CanadaPriceFrom £390Free CancellationRating
7.1
10,372 reviews
Search Air Canada flights
Virgin AtlanticPriceFrom £404Free CancellationRating
7.5
670 reviews
Search Virgin Atlantic flights
LufthansaPriceFrom £414Free CancellationRating
6.8
7,539 reviews
Search Lufthansa flights
British AirwaysPriceFrom £415Free CancellationRating
6.7
7,485 reviews
Search British Airways flights
Air FrancePriceFrom £419Free CancellationRating
7.4
1,482 reviews
Search Air France flights
United AirlinesPriceFrom £424Free CancellationRating
7.4
9,001 reviews
Search United Airlines flights
FinnairPriceFrom £427Free CancellationRating
7.6
1,333 reviews
Search Finnair flights
KLMPriceFrom £429Free CancellationRating
7.7
1,406 reviews
Search KLM flights
JetBluePriceFrom £459Free CancellationRating
7.2
2,907 reviews
Search JetBlue flights
IberiaPriceFrom £480Free CancellationRating
7.0
3,001 reviews
Search Iberia flights

  • Finnair Flights From London to San Diego

    Across 5 Finnair flights from London to San Diego this week, the average price was £554, with the best Finnair deals starting from £427 round-trip. 1,333 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 £491, round-trip. It should be noted that an average American Airlines flight deal for this route in this time was higher, at £672 round-trip. American Airlines operates 5 flights out of London into San Diego in an average week, so prices vary by time and availability. 11,032 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
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
fre. 28/11
fre. 5/12
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States