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Cheap flights from San Diego to London from £177

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 29/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
12:45 - 11:50
SAN
-
LHR
15h 05m
1 stop
Multiple Airlines Logo
20:15 - 15:45
LHR
-
SAN
27h 30m
1 stop
£467Multiple Airlines
Mon, 16 Feb - Tue, 3 Mar
United Airlines Logo
16:09 - 12:20
SAN
-
LHR
12h 11m
1 stop
United Airlines Logo
06:55 - 15:25
LHR
-
SAN
16h 30m
1 stop
£468United Airlines
Tue, 7 Apr - Thu, 23 Apr
Multiple Airlines Logo
12:40 - 20:15
SAN
-
LGW
23h 35m
3 stops
Multiple Airlines Logo
20:15 - 15:45
LGW
-
SAN
27h 30m
2 stops
£468Multiple Airlines
Mon, 16 Feb - Tue, 3 Mar
JetBlue Logo
15:30 - 20:45
SAN
-
LHR
21h 15m
1 stop
JetBlue Logo
07:25 - 20:00
LHR
-
SAN
20h 35m
1 stop
£469JetBlue
Sat, 7 Feb - Tue, 24 Feb
Air Canada Logo
12:40 - 11:20
SAN
-
LHR
14h 40m
1 stop
Air Canada Logo
18:00 - 11:53
LHR
-
SAN
25h 53m
1 stop
£470Air Canada
Mon, 16 Feb - Tue, 3 Mar
Multiple Airlines Logo
12:45 - 13:20
SAN
-
LHR
16h 35m
1 stop
Multiple Airlines Logo
06:00 - 17:12
LHR
-
SAN
19h 12m
2 stops
£471Multiple Airlines
Tue, 21 Apr - Tue, 28 Apr
Lufthansa Logo
11:03 - 15:50
SAN
-
LHR
21h 47m
2 stops
Lufthansa Logo
06:35 - 21:03
LHR
-
SAN
21h 28m
2 stops
£472Lufthansa
Wed, 11 Mar - Wed, 18 Mar
British Airways Logo
08:00 - 12:05
SAN
-
LGW
20h 05m
2 stops
British Airways Logo
16:25 - 18:23
LGW
-
SAN
32h 58m
2 stops
£473British Airways
Wed, 25 Feb - Mon, 9 Mar
Lufthansa Logo
17:15 - 18:25
SAN
-
LHR
17h 10m
1 stop
Lufthansa Logo
06:55 - 15:25
LHR
-
SAN
16h 30m
1 stop
£473Lufthansa
Wed, 22 Apr - Wed, 29 Apr
JetBlue Logo
20:44 - 06:55
SAN
-
LHR
26h 11m
1 stop
JetBlue Logo
09:20 - 19:28
LHR
-
SAN
18h 08m
1 stop
£474JetBlue
Sat, 28 Feb - Thu, 5 Mar

Delta flights from San Diego to London

Our best Delta deals on San Diego to London flight tickets
Delta
10 Feb
SAN06:30San Diego
18h 15m
2 stops
LHR08:45London Heathrow
24 Feb
LHR06:30London Heathrow
13h 35m
1 stop
SAN12:05San Diego
£487
Delta
16 Feb
SAN22:00San Diego
14h 10m
1 stop
LHR20:10London Heathrow
3 Mar
LHR06:30London Heathrow
19h 20m
2 stops
SAN17:50San Diego
£491
Delta
22 Feb
SAN15:20San Diego
17h 30m
1 stop
LHR16:50London Heathrow
30 Apr
LHR06:30London Heathrow
13h 20m
1 stop
SAN11:50San Diego
£495

American Airlines flights from San Diego to London

Our best American Airlines deals on San Diego to London flight tickets
American Airlines
16 Feb
SAN16:45San Diego
12h 30m
1 stop
LHR13:15London Heathrow
3 Mar
LHR12:50London Heathrow
11h 20m
SAN16:10San Diego
£501
American Airlines
16 Feb
SAN16:45San Diego
12h 30m
1 stop
LHR13:15London Heathrow
3 Mar
LHR12:50London Heathrow
11h 20m
SAN16:10San Diego
£503
American Airlines
15 Feb
SAN08:00San Diego
14h 50m
1 stop
LHR06:50London Heathrow
10 Mar
LHR12:50London Heathrow
11h 20m
SAN17:10San Diego
£504

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 24 January 2026.
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

Mon 16/2

12:45-11:50

1 stop15h 05m

London Heathrow

Tue 3/3

20:15-15:45

1 stop27h 30m

£467

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Tue 7/4

16:09-12:20

1 stop12h 11m

London Heathrow

Thu 23/4

06:55-15:25

1 stop16h 30m

£468

San DiegoLondon

SAN - LGW

SANLGW

San Diego

Mon 16/2

12:40-20:15

3 stops23h 35m

London Gatwick

Tue 3/3

20:15-15:45

2 stops27h 30m

£468

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Sat 7/2

15:30-20:45

1 stop21h 15m

London Heathrow

Tue 24/2

07:25-20:00

1 stop20h 35m

£469

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Mon 16/2

12:40-11:20

1 stop14h 40m

London Heathrow

Tue 3/3

18:00-11:53

1 stop25h 53m

£470

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Tue 21/4

12:45-13:20

1 stop16h 35m

London Heathrow

Tue 28/4

06:00-17:12

2 stops19h 12m

£471

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Wed 11/3

11:03-15:50

2 stops21h 47m

London Heathrow

Wed 18/3

06:35-21:03

2 stops21h 28m

£472

San DiegoLondon

SAN - LGW

SANLGW

San Diego

Wed 25/2

08:00-12:05

2 stops20h 05m

London Gatwick

Mon 9/3

16:25-18:23

2 stops32h 58m

£473

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Wed 22/4

17:15-18:25

1 stop17h 10m

London Heathrow

Wed 29/4

06:55-15:25

1 stop16h 30m

£473

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Sat 28/2

20:44-06:55

1 stop26h 11m

London Heathrow

Thu 5/3

09:20-19:28

1 stop18h 08m

£474

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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 typical price of a round-trip flight between San Diego and London?

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 £508, 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 £514.

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 £495. 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 £890.

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 afternoon when flights can be purchased for as low as £663. Flights in the evening are often more expensive, with an average ticket price of £691.

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 £654 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 £560 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 10% 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 January 2026, prices for San Diego to London flights are approximately 27% 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

Best price found

£369

Fastest flight time

10h 35m

Direct flights

Every day

Airports in London

6 airports
The best one-way flight to London from San Diego in the past 72 hours is £369. The best return flight deal from San Diego to London found on momondo in the last 72 hours is £572.
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 £503Free CancellationRating
6.7
7,699 reviews
Search British Airways flights

  • British Airways Flights From San Diego to London

    Across 3 British Airways flights from San Diego to London this week, the average price was £710, with the best British Airways deals starting from £503 round-trip. 7,699 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
Luton
Milton Keynes
Gatwick
Maidstone
Slough
Southend-on-Sea
Canterbury
Ipswich
Ilford
Guildford
Chelmsford
Hayes
Dover
Bedford
Worthing
Ramsgate
Colchester
Folkestone
Winchester

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