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Cheap flights from San Diego to London from £283

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 21/2. 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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Scandinavian Airlines Logo
16:20 - 21:20SAN-LHR
21h 00m3 stops
Scandinavian Airlines Logo
10:20 - 22:47LHR-SAN
20h 27m2 stops
£476Scandinavian Airlines
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Thu, 15 Jan - Tue, 20 Jan
Multiple Airlines Logo
10:52 - 07:55SAN-LHR
13h 03m1 stop
Multiple Airlines Logo
11:35 - 17:28LHR-SAN
13h 53m1 stop
£477Multiple Airlines
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Thu, 15 Jan - Tue, 20 Jan
British Airways Logo
16:45 - 11:30SAN-LHR
10h 45mdirect
British Airways Logo
14:30 - 17:50LHR-SAN
11h 20mdirect
£478British Airways
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Wed, 6 May - Mon, 18 May
British Airways Logo
18:00 - 12:35SAN-LHR
10h 35mdirect
British Airways Logo
14:10 - 22:26LHR-SAN
16h 16m1 stop
£479British Airways
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Wed, 14 Jan - Mon, 19 Jan
Multiple Airlines Logo
06:30 - 07:10SAN-LHR
17h 40m2 stops
Multiple Airlines Logo
08:45 - 16:45LHR-SAN
15h 00m1 stop
£479Multiple Airlines
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Thu, 12 Mar - Thu, 26 Mar
Iberia Logo
09:21 - 06:50SAN-LHR
13h 29m1 stop
Iberia Logo
12:50 - 16:10LHR-SAN
11h 20mdirect
£480Iberia
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Sat, 31 Jan - Thu, 12 Feb
Virgin Atlantic Logo
06:15 - 08:45SAN-LHR
19h 30m1 stop
Virgin Atlantic Logo
17:50 - 13:05LHR-SAN
26h 15m1 stop
£481Virgin Atlantic
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Fri, 20 Mar - Wed, 25 Mar
British Airways Logo
18:00 - 12:35SAN-LHR
10h 35mdirect
British Airways Logo
12:50 - 16:10LHR-SAN
11h 20mdirect
£482British Airways
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Thu, 12 Feb - Tue, 24 Feb
Finnair Logo
10:51 - 10:00SAN-LHR
15h 09m1 stop
Finnair Logo
12:50 - 16:10LHR-SAN
11h 20mdirect
£482Finnair
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Wed, 18 Feb - Mon, 23 Feb
Lufthansa Logo
16:26 - 14:10SAN-LHR
13h 44m1 stop
Lufthansa Logo
07:30 - 17:10LHR-SAN
17h 40m2 stops
£483Lufthansa
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Thu, 23 Apr - Thu, 30 Apr

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
13 Jan
SAN16:20San Diego
21h 15m
3 stops
LHR21:35London Heathrow
20 Jan
LHR10:20London Heathrow
20h 27m
2 stops
SAN22:47San Diego
£476
Find similar
Scandinavian Airlines
7 Apr
SAN10:00San Diego
27h 40m
2 stops
LHR21:40London Heathrow
23 Apr
LHR07:05London Heathrow
24h 38m
3 stops
SAN23:43San Diego
£488
Find similar
Scandinavian Airlines
29 Apr
SAN10:00San Diego
25h 55m
3 stops
LHR19:55London Heathrow
4 May
LHR06:40London Heathrow
25h 03m
3 stops
SAN23:43San Diego
£497
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British Airways flights from San Diego to London Heathrow Airport

Our best British Airways deals on San Diego to London Heathrow Airport flight tickets
British Airways
6 May
SAN16:45San Diego
10h 45m
LHR11:30London Heathrow
18 May
LHR14:30London Heathrow
11h 20m
SAN17:50San Diego
£478
Find similar
British Airways
14 Jan
SAN18:00San Diego
10h 35m
LHR12:35London Heathrow
19 Jan
LHR14:10London Heathrow
16h 16m
1 stop
SAN22:26San Diego
£479
Find similar
British Airways
20 Feb
SAN18:00San Diego
10h 35m
LHR12:35London Heathrow
4 Mar
LHR12:50London Heathrow
11h 20m
SAN16:10San Diego
£482
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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 4 December 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

Thu 15/1

16:20-21:20

3 stops21h 00m

London Heathrow

Tue 20/1

10:20-22:47

2 stops20h 27m

£476

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Thu 15/1

10:52-07:55

1 stop13h 03m

London Heathrow

Tue 20/1

11:35-17:28

1 stop13h 53m

£477

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Wed 6/5

16:45-11:30

Nonstop10h 45m

London Heathrow

Mon 18/5

14:30-17:50

Nonstop11h 20m

£478

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Wed 14/1

18:00-12:35

Nonstop10h 35m

London Heathrow

Mon 19/1

14:10-22:26

1 stop16h 16m

£479

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Thu 12/3

06:30-07:10

2 stops17h 40m

London Heathrow

Thu 26/3

08:45-16:45

1 stop15h 00m

£479

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Sat 31/1

09:21-06:50

1 stop13h 29m

London Heathrow

Thu 12/2

12:50-16:10

Nonstop11h 20m

£480

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Fri 20/3

06:15-08:45

1 stop19h 30m

London Heathrow

Wed 25/3

17:50-13:05

1 stop26h 15m

£481

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Thu 12/2

18:00-12:35

Nonstop10h 35m

London Heathrow

Tue 24/2

12:50-16:10

Nonstop11h 20m

£482

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Wed 18/2

10:51-10:00

1 stop15h 09m

London Heathrow

Mon 23/2

12:50-16:10

Nonstop11h 20m

£482

San DiegoLondon

SAN - LHR

SANLHR

San Diego

Thu 23/4

16:26-14:10

1 stop13h 44m

London Heathrow

Thu 30/4

07:30-17:10

2 stops17h 40m

£483

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 cheapest month to fly to London Heathrow Airport?

In general, October 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 £549. The month of February is another great option to travel to London Heathrow Airport, with average flight prices from San Diego averaging around £552.

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 £484. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Friday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Friday is £955.

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 £599. 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 afternoon when prices are £762 on average. Flights to London Heathrow Airport from San Diego in the afternoon 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 £674 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 £558 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 35% 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 December 2025, prices for San Diego to London Heathrow Airport flights are approximately 33% cheaper 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

Best price found

£326

Fastest flight time

10h 35m

Direct flights

Every day
The best one-way flight to London Heathrow Airport from San Diego in the past 72 hours is £326. The best return flight deal from San Diego to London Heathrow Airport found on momondo in the last 72 hours is £738.
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.
Search flight deals

  • 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 £514Free CancellationRating
6.7
7,557 reviews
Search British Airways flights

  • British Airways Flights From San Diego to London Heathrow Airport

    Across 4 British Airways flights from San Diego to London Heathrow Airport this week, the average price was £773, with the best British Airways deals starting from £514 round-trip. 7,557 users have rated British Airways on momondo, with an average score of 6.7/10.

Travelling to a place near London?

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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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