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Cheap flights from San Diego to London from £180

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 21/1. 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

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Virgin Atlantic Logo
07:50 - 07:05SAN-LHR
15h 15m1 stop
Virgin Atlantic Logo
11:05 - 20:42LHR-SAN
17h 37m1 stop
£463Virgin Atlantic
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Mon, 24 Nov - Tue, 9 Dec
Scandinavian Airlines Logo
10:37 - 21:35SAN-LHR
26h 58m3 stops
Scandinavian Airlines Logo
07:05 - 22:55LHR-SAN
22h 50m3 stops
£465Scandinavian Airlines
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Wed, 4 Mar - Mon, 9 Mar
Lufthansa Logo
17:35 - 15:50SAN-LHR
14h 15m1 stop
Lufthansa Logo
20:15 - 15:45LHR-SAN
27h 30m1 stop
£467Lufthansa
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Wed, 10 Dec - Thu, 22 Jan
Multiple Airlines Logo
12:45 - 11:50SAN-LHR
15h 05m1 stop
Multiple Airlines Logo
08:45 - 15:45LHR-SAN
15h 00m1 stop
£469Multiple Airlines
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Mon, 24 Nov - Tue, 9 Dec
Lufthansa Logo
17:35 - 15:50SAN-LHR
14h 15m1 stop
Lufthansa Logo
07:40 - 15:45LHR-SAN
16h 05m1 stop
£469Lufthansa
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Wed, 3 Dec - Wed, 10 Dec
British Airways Logo
18:00 - 12:35SAN-LHR
10h 35mdirect
British Airways Logo
12:50 - 16:10LHR-SAN
11h 20mdirect
£472British Airways
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Tue, 25 Nov - Wed, 10 Dec
British Airways Logo
07:21 - 06:50SAN-LHR
15h 29m1 stop
British Airways Logo
12:50 - 16:10LHR-SAN
11h 20mdirect
£475British Airways
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Tue, 2 Dec - Tue, 9 Dec
American Airlines Logo
16:25 - 13:15SAN-LHR
12h 50m1 stop
American Airlines Logo
12:50 - 16:10LHR-SAN
11h 20mdirect
£476American Airlines
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Mon, 24 Nov - Tue, 9 Dec
American Airlines Logo
14:59 - 12:15SAN-LHR
13h 16m1 stop
American Airlines Logo
12:50 - 16:10LHR-SAN
11h 20mdirect
£476American Airlines
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Mon, 24 Nov - Tue, 9 Dec
Multiple Airlines Logo
18:00 - 12:35SAN-LHR
10h 35mdirect
Multiple Airlines Logo
07:30 - 20:41LHR-SAN
21h 11m2 stops
£480Multiple Airlines
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Wed, 10 Dec - Thu, 22 Jan

Scandinavian Airlines flights from San Diego to London Heathrow Airport

Our best Scandinavian Airlines deals on San Diego to London Heathrow Airport flight tickets
Scandinavian Airlines
4 Mar
SAN10:37San Diego
26h 58m
3 stops
LHR21:35London Heathrow
9 Mar
LHR07:05London Heathrow
22h 50m
3 stops
SAN22:55San Diego
£465
Find similar
Scandinavian Airlines
22 Apr
SAN07:00San Diego
18h 35m
2 stops
LHR09:35London Heathrow
29 Apr
LHR06:40London Heathrow
24h 15m
2 stops
SAN22:55San Diego
£473
Find similar
Scandinavian Airlines
9 Apr
SAN10:00San Diego
24h 30m
2 stops
LHR18:30London Heathrow
23 Apr
LHR07:05London Heathrow
24h 38m
3 stops
SAN23:43San Diego
£474
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Lufthansa flights from San Diego to London Heathrow Airport

Our best Lufthansa deals on San Diego to London Heathrow Airport flight tickets
Lufthansa
9 Nov
SAN17:35San Diego
14h 15m
1 stop
LHR15:50London Heathrow
25 Nov
LHR08:45London Heathrow
15h 00m
1 stop
SAN15:45San Diego
£466
Find similar
Lufthansa
10 Dec
SAN17:35San Diego
14h 15m
1 stop
LHR15:50London Heathrow
22 Jan
LHR20:15London Heathrow
27h 30m
1 stop
SAN15:45San Diego
£467
Find similar
Lufthansa
3 Dec
SAN17:35San Diego
14h 15m
1 stop
LHR15:50London Heathrow
10 Dec
LHR07:40London Heathrow
16h 05m
1 stop
SAN15:45San Diego
£469
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momondo Fare Finder

 
Customise your flight search to find flights from San Diego to London Heathrow Airport 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 6 November 2025.
Use the filters below to find and compare flights from San Diego to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Mon 24/11

07:50-07:05

1 stop15h 15m

London Heathrow

Tue 9/12

11:05-20:42

1 stop17h 37m

£463

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Wed 4/3

10:37-21:35

3 stops26h 58m

London Heathrow

Mon 9/3

07:05-22:55

3 stops22h 50m

£465

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Wed 10/12

17:35-15:50

1 stop14h 15m

London Heathrow

Thu 22/1

20:15-15:45

1 stop27h 30m

£467

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Mon 24/11

12:45-11:50

1 stop15h 05m

London Heathrow

Tue 9/12

08:45-15:45

1 stop15h 00m

£469

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Wed 3/12

17:35-15:50

1 stop14h 15m

London Heathrow

Wed 10/12

07:40-15:45

1 stop16h 05m

£469

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Tue 25/11

18:00-12:35

Nonstop10h 35m

London Heathrow

Wed 10/12

12:50-16:10

Nonstop11h 20m

£472

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Tue 2/12

07:21-06:50

1 stop15h 29m

London Heathrow

Tue 9/12

12:50-16:10

Nonstop11h 20m

£475

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Mon 24/11

16:25-13:15

1 stop12h 50m

London Heathrow

Tue 9/12

12:50-16:10

Nonstop11h 20m

£476

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Mon 24/11

14:59-12:15

1 stop13h 16m

London Heathrow

Tue 9/12

12:50-16:10

Nonstop11h 20m

£476

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Wed 10/12

18:00-12:35

Nonstop10h 35m

London Heathrow

Thu 22/1

07:30-20:41

2 stops21h 11m

£480

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 Heathrow Airport

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 Heathrow Airport?

What is the cheapest month to fly to London Heathrow Airport?

In general, February is the cheapest month to fly from San Diego to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £562. The month of January is another great option to travel to London Heathrow Airport, with average flight prices from San Diego averaging around £565.

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

On average, the least expensive day to fly to London Heathrow Airport from San Diego is on a Monday. momondo users have found tickets for Monday departures for as low as £493. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Wednesday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Wednesday is £1,066.

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

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the morning. momondo users have found flights departing from San Diego to London Heathrow Airport in the morning for as low as £611. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are £724 on average. Flights to London Heathrow Airport from San Diego in the evening are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest San Diego to London Heathrow flight route?

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

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

You are more likely to see cheaper flights to London Heathrow Airport from San Diego when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £689 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from San Diego for as low as £555 on momondo.

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

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

You could potentially save up to 13% on your flight if you consider stops on a San Diego to London Heathrow Airport flight.

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

As of November 2025, prices for San Diego to London Heathrow Airport flights are approximately 5% more expensive when compared to flights at the same time last year.

When to book flights from San Diego to London Heathrow Airport

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

Cheap San Diego to London Heathrow Airport (SAN to LHR) flight deals and tips

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

Fastest flight time

10h 35m

Direct flights

Every day
The fastest flight from San Diego to London Heathrow Airport takes 10h 35m
Direct flights go from San Diego to London Heathrow Airport every day.
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  • How far is San Diego to London Heathrow by plane?

    San Diego and London Heathrow are 5468.7 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 Heathrow Airport?

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

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

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

    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 Heathrow Airport.

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

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

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

Best airlines flying from San Diego to London Heathrow Airport

Compare and see reviews for airlines that fly from San Diego to London Heathrow Airport with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom £526Free CancellationRating
6.7
7,496 reviews
Search British Airways flights

  • British Airways Flights From San Diego to London Heathrow Airport

    Across 7 British Airways flights from San Diego to London Heathrow Airport this week, the average price was £772, with the best British Airways deals starting from £526 round-trip. 7,496 users have rated British Airways on momondo, with an average score of 6.7/10.

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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?

Flights from San Diego to London with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

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 San Diego to London.

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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