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Cheap flights from San Diego to London from £303

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Diego to London departing on 21/4. 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

Enter your travel dates to find the best prices.
Lufthansa Logo
11:00 - 09:40
SAN
-
LHR
14h 40m1 stop
Lufthansa Logo
07:25 - 15:25
LHR
-
SAN
16h 00m1 stop
£479Lufthansa
Wed, 22 Apr - Wed, 29 Apr
Lufthansa Logo
11:05 - 13:30
SAN
-
LHR
18h 25m1 stop
Lufthansa Logo
20:15 - 18:48
LHR
-
SAN
30h 33m2 stops
£480Lufthansa
Mon, 16 Feb - Mon, 23 Feb
Lufthansa Logo
12:16 - 10:15
SAN
-
LHR
13h 59m1 stop
Lufthansa Logo
09:30 - 21:03
LHR
-
SAN
18h 33m2 stops
£481Lufthansa
Wed, 4 Mar - Tue, 17 Mar
Multiple Airlines Logo
14:38 - 10:00
SAN
-
LGW
35h 22m2 stops
Multiple Airlines Logo
14:00 - 10:30
LGW
-
SAN
28h 30m1 stop
£482Multiple Airlines
Thu, 12 Feb - Mon, 23 Feb
JetBlue Logo
21:00 - 20:45
SAN
-
LHR
15h 45m1 stop
JetBlue Logo
07:45 - 19:50
LHR
-
SAN
20h 05m1 stop
£487JetBlue
Sun, 11 Jan - Sun, 18 Jan
Multiple Airlines Logo
06:30 - 07:10
SAN
-
LHR
16h 40m2 stops
Multiple Airlines Logo
06:35 - 15:45
LHR
-
SAN
17h 10m1 stop
£491Multiple Airlines
Mon, 26 Jan - Fri, 6 Feb
SWISS Logo
12:49 - 17:50
SAN
-
LGW
21h 01m2 stops
SWISS Logo
18:40 - 20:49
LGW
-
SAN
34h 09m2 stops
£503SWISS
Mon, 12 Jan - Tue, 27 Jan
SWISS Logo
10:59 - 17:50
SAN
-
LGW
46h 51m2 stops
SWISS Logo
18:40 - 22:44
LGW
-
SAN
36h 04m2 stops
£508SWISS
Sat, 14 Feb - Tue, 24 Feb
Virgin Atlantic Logo
15:00 - 19:35
SAN
-
LCY
21h 35m1 stop
Virgin Atlantic Logo
20:05 - 13:05
LCY
-
SAN
24h 00m1 stop
£515Virgin Atlantic
Tue, 10 Mar - Mon, 16 Mar
Virgin Atlantic Logo
06:15 - 08:10
SAN
-
LCY
18h 55m2 stops
Virgin Atlantic Logo
18:55 - 13:05
LCY
-
SAN
25h 10m1 stop
£518Virgin Atlantic
Tue, 10 Mar - Mon, 16 Mar

Lufthansa flights from San Diego to London

Our best Lufthansa deals on San Diego to London flight tickets
Lufthansa
22 Apr
SAN11:00San Diego
14h 40m
1 stop
LHR09:40London Heathrow
29 Apr
LHR07:25London Heathrow
16h 00m
1 stop
SAN15:25San Diego
£479
Find similar
Lufthansa
16 Feb
SAN11:05San Diego
18h 25m
1 stop
LHR13:30London Heathrow
23 Feb
LHR20:15London Heathrow
30h 33m
2 stops
SAN18:48San Diego
£480
Find similar
Lufthansa
18 Feb
SAN14:10San Diego
13h 05m
1 stop
LHR11:15London Heathrow
23 Feb
LHR20:15London Heathrow
30h 33m
2 stops
SAN18:48San Diego
£481
Find similar

United Airlines flights from San Diego to London

Our best United Airlines deals on San Diego to London flight tickets
United Airlines
16 Feb
SAN12:45San Diego
15h 05m
1 stop
LHR11:50London Heathrow
25 Feb
LHR06:35London Heathrow
17h 10m
1 stop
SAN15:45San Diego
£488
Find similar
United Airlines
6 Jan
SAN07:45San Diego
15h 40m
1 stop
LHR07:25London Heathrow
30 Jan
LHR06:35London Heathrow
17h 10m
1 stop
SAN15:45San Diego
£492
Find similar
United Airlines
7 Jan
SAN09:55San Diego
13h 30m
1 stop
LHR07:25London Heathrow
13 Jan
LHR11:10London Heathrow
19h 55m
2 stops
SAN23:05San Diego
£499
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from San Diego to London 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 18 December 2025.
Use the filters below to find and compare flights from San Diego to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Wed 22/4

11:00-09:40

1 stop14h 40m

London Heathrow

Wed 29/4

07:25-15:25

1 stop16h 00m

£479

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Mon 16/2

11:05-13:30

1 stop18h 25m

London Heathrow

Mon 23/2

20:15-18:48

2 stops30h 33m

£480

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Wed 4/3

12:16-10:15

1 stop13h 59m

London Heathrow

Tue 17/3

09:30-21:03

2 stops18h 33m

£481

San DiegoLondon

SAN - LGW

SANLGW

San Diego

Thu 12/2

14:38-10:00

2 stops35h 22m

London Gatwick

Mon 23/2

14:00-10:30

1 stop28h 30m

£482

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Sun 11/1

21:00-20:45

1 stop15h 45m

London Heathrow

Sun 18/1

07:45-19:50

1 stop20h 05m

£487

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Mon 26/1

06:30-07:10

2 stops16h 40m

London Heathrow

Fri 6/2

06:35-15:45

1 stop17h 10m

£490

San DiegoLondon

SAN - LGW

SANLGW

San Diego

Mon 12/1

12:49-17:50

2 stops21h 01m

London Gatwick

Tue 27/1

18:40-20:49

2 stops34h 09m

£503

San DiegoLondon

SAN - LGW

SANLGW

San Diego

Sat 14/2

10:59-17:50

2 stops46h 51m

London Gatwick

Tue 24/2

18:40-22:44

2 stops36h 04m

£508

San DiegoLondon

SAN - LCY

SANLCY

San Diego

Tue 10/3

15:00-19:35

1 stop21h 35m

London City

Mon 16/3

20:05-13:05

1 stop24h 00m

£515

San DiegoLondon

SAN - LCY

SANLCY

San Diego

Tue 10/3

06:15-08:10

2 stops18h 55m

London City

Mon 16/3

18:55-13:05

1 stop25h 10m

£518

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 London from

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

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 cheapest month to fly to London?

The cheapest month to fly to London from San Diego is in October. Flight prices, which tend to average around £517, are often lower during this time because this is during the off-season. The month of February is another great option to travel to London, with average flight prices from San Diego averaging around £522.

What is the cheapest day to depart on your flight to London?

Our data shows that Monday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £481. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from San Diego to London for around £1,022.

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

The cheapest time of day to fly to London is in the morning when flights can be purchased for as low as £567. Flights in the evening are often more expensive, with an average ticket price of £699.

What is the cheapest San Diego to London flight route?

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

How far in advance should I book a flight to London?

You are more likely to see cheaper flights to London from San Diego when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around £664 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from San Diego for as low as £561 on momondo.

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

There are 3 cabin classes available to choose from on San Diego to London 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 San Diego to London flights?

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

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

As of December 2025, prices for San Diego to London flights are approximately 13% cheaper when compared to flights at the same time last year.

When to book flights from San Diego to London

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

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

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

Fastest flight time

10h 35m

Direct flights

Every day

Airports in London

6 airports
The fastest flight from San Diego to London takes 10h 35m
Direct flights go from San Diego to London every day.
There are 6 airports in London. From San Diego there are direct flights to London Heathrow (LHR).
Search flight deals

  • How far is San Diego to London by plane?

    San Diego and London are 5478.3 mi apart from one another. 10h 35m is a normal flight duration for this route.

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

    Prices for flights from San Diego Airport to London are refreshed on a daily basis.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Diego Airport to London.

  • What documentation or ID do you need to fly to London?

    The travel and health documents you'll need for your trip to London 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 London. 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 San Diego to London?

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

Best airlines flying from San Diego to London

Compare and see reviews for airlines that fly from San Diego to London with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom £510Free CancellationRating
6.7
7,585 reviews
Search British Airways flights

  • British Airways Flights From San Diego to London

    Across 5 British Airways flights from San Diego to London this week, the average price was £704, with the best British Airways deals starting from £510 round-trip. 7,585 users have rated British Airways on momondo, with an average score of 6.7/10.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
Milton Keynes
Luton
Gatwick
Maidstone
Slough
Southend-on-Sea
Canterbury
Ipswich
Ilford
Guildford
Hayes
Chelmsford
Dover
Worthing
Colchester
Bedford
Ramsgate
Hounslow
Stansted

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from San Diego to London. momondo saves you time and could save you money on your trip.

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

All flight searches from San Diego to London on momondo can be filtered to show those which offer flexible booking policies.

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

momondo helps you find the best flight between San Diego and London by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are simply researching potential flights to London, momondo offers a useful price alert feature which will track prices for flights to London from San Diego and alert you when they change.

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Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London
London City Airport
London Gatwick Airport
London Heathrow Airport
London Luton Airport
London Southend Airport
London Stansted Airport