How often are flights from London to San Diego delayed?

Historically, on average around 19% of flights between London and San Diego have experienced a delay on any given week. The average delay length over the past 12 months has been 145 minutes.

Which airport is the most popular for stopovers for flights between London Heathrow Airport and San Diego?

Los Angeles (LAX) was the most common stop: 55% of momondo users choosing one-stop flights on this route connected there.

Which airlines fly to San Diego?

British Airways, Lufthansa and Virgin Atlantic are the top three most popular airlines that fly to San Diego from London Heathrow Airport according to our data. British Airways is the first choice among our users, with 65% of people opting to fly with this airline when travelling to San Diego. Keep in mind that there are 12 different airlines that fly to San Diego on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from London Heathrow to San Diego?

SWISS, Lufthansa, and Finnair are the most popular carriers operating from London Heathrow to San Diego

Which airline has the best punctuality record on London to San Diego flights?

According to our data, American Airlines have had the fewest delays on this route over the last 12 months, with about 16% of their flights experiencing any sort of delay.

What is the most punctual flight time for London to San Diego flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the early afternoon have, in the past, seen delays more frequently in comparison.

Which stopover airport offers the lowest fares from London Heathrow Airport to San Diego?

Flights via Denver (DEN) offer the lowest average return price of £562.

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

Which stopover airport has the shortest connection time from London Heathrow Airport to San Diego?

Denver (DEN) has the shortest average stopover time for this route: 1h 24m.

Which stopover airport has the shortest travel time from London Heathrow Airport to San Diego?

Flights connecting via Denver (DEN) have the shortest average one-way travel time: 13h 56m.

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

Prices for flights from London Heathrow Airport to San Diego Airport were last updated today.

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

As of October 2025, there are 12 operators available to choose from for flights from London Heathrow Airport to San Diego Airport.

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

What documentation or ID do you need to fly to San Diego Airport?

The travel and health documents required for your trip to San Diego Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Diego Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

£402 Cheap Flights from London Heathrow Airport to San Diego in 2025/26

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08:45 - 15:45LHR-SAN

15h 00m1 stop

12:55 - 09:40SAN-LHR

13h 45m1 stop

£478Lufthansa

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Tue, 3 Mar - Tue, 17 Mar

08:45 - 15:45LHR-SAN

15h 00m1 stop

14:16 - 11:15SAN-LHR

12h 59m1 stop

£479Lufthansa

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Wed, 26 Nov - Mon, 1 Dec

07:25 - 19:11LHR-SAN

19h 46m1 stop

21:05 - 09:30SAN-LHR

28h 25m1 stop

£487JetBlue

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Wed, 3 Dec - Sun, 7 Dec

08:05 - 19:11LHR-SAN

19h 06m1 stop

21:20 - 06:55SAN-LHR

25h 35m1 stop

£489JetBlue

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06:35 - 19:52LHR-SAN

21h 17m2 stops

10:51 - 11:15SAN-LHR

16h 24m1 stop

£498United Airlines

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Wed, 26 Nov - Mon, 1 Dec

12:50 - 16:10LHR-SAN

11h 20mdirect

09:21 - 06:50SAN-LHR

13h 29m1 stop

£500British Airways

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Mon, 12 Jan - Mon, 19 Jan

12:50 - 16:10LHR-SAN

11h 20mdirect

15:45 - 12:15SAN-LHR

13h 30m1 stop

£510British Airways

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Tue, 3 Mar - Tue, 17 Mar

15:00 - 12:03LHR-SAN

29h 03m2 stops

07:45 - 11:50SAN-LHR

20h 05m2 stops

£520Air Canada

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Wed, 26 Nov - Thu, 4 Dec

15:00 - 12:03LHR-SAN

29h 03m2 stops

18:10 - 11:50SAN-LHR

33h 40m1 stop

£521Air Canada

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Wed, 26 Nov - Mon, 1 Dec

09:00 - 00:13LHR-SAN

23h 13m2 stops

06:30 - 09:40SAN-LHR

19h 10m1 stop

£523United Airlines

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Thu, 27 Nov - Tue, 2 Dec

United Airlines flights from London Heathrow Airport to San Diego

Our best United Airlines deals on London Heathrow Airport to San Diego flight tickets

United Airlines

26 Nov

LHR06:35London Heathrow

21h 17m

2 stops

SAN19:52San Diego

1 Dec

SAN10:51San Diego

16h 24m

1 stop

LHR11:15London Heathrow

£498

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United Airlines

27 Nov

LHR09:00London Heathrow

23h 13m

2 stops

SAN00:13San Diego

2 Dec

SAN06:30San Diego

19h 10m

1 stop

LHR09:40London Heathrow

£523

Find similar

United Airlines

5 Dec

LHR13:30London Heathrow

18h 45m

2 stops

SAN00:15San Diego

11 Dec

SAN11:11San Diego

16h 04m

2 stops

LHR11:15London Heathrow

£527

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Air Canada flights from London Heathrow Airport to San Diego

Our best Air Canada deals on London Heathrow Airport to San Diego flight tickets

Air Canada

26 Nov

LHR15:00London Heathrow

29h 03m

2 stops

SAN12:03San Diego

4 Dec

SAN07:45San Diego

20h 05m

2 stops

LHR11:50London Heathrow

£520

Find similar

Air Canada

26 Nov

LHR15:00London Heathrow

29h 03m

2 stops

SAN12:03San Diego

1 Dec

SAN18:10San Diego

33h 40m

1 stop

LHR11:50London Heathrow

£521

Find similar

Air Canada

26 Nov

LHR13:25London Heathrow

30h 28m

2 stops

SAN11:53San Diego

1 Dec

SAN18:10San Diego

29h 00m

2 stops

LHR07:10London Heathrow

£526

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momondo Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport to San Diego that are best for you.

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Depart

Return

Price

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Tue 3/3

08:45-15:45

1 stop15h 00m

San Diego

Tue 17/3

12:55-09:40

1 stop13h 45m

£478

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Wed 26/11

08:45-15:45

1 stop15h 00m

San Diego

Mon 1/12

14:16-11:15

1 stop12h 59m

£479

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Wed 3/12

07:25-19:11

1 stop19h 46m

San Diego

Sun 7/12

21:05-09:30

1 stop28h 25m

£487

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Sat 6/12

08:05-19:11

1 stop19h 06m

San Diego

Sat 13/12

21:20-06:55

1 stop25h 35m

£489

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Wed 26/11

06:35-19:52

2 stops21h 17m

San Diego

Mon 1/12

10:51-11:15

1 stop16h 24m

£498

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Mon 12/1

12:50-16:10

Nonstop11h 20m

San Diego

Mon 19/1

09:21-06:50

1 stop13h 29m

£500

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Tue 3/3

12:50-16:10

Nonstop11h 20m

San Diego

Tue 17/3

15:45-12:15

1 stop13h 30m

£510

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Wed 26/11

15:00-12:03

2 stops29h 03m

San Diego

Thu 4/12

07:45-11:50

2 stops20h 05m

£520

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Wed 26/11

15:00-12:03

2 stops29h 03m

San Diego

Mon 1/12

18:10-11:50

1 stop33h 40m

£521

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Thu 27/11

09:00-00:13

2 stops23h 13m

San Diego

Tue 2/12

06:30-09:40

1 stop19h 10m

£523

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How to get the cheapest flight ticket from London Heathrow Airport 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

Prices

Airlines

Delays

Stopovers

Other information

What is the cheapest month to fly to San Diego?

If you don’t want to visit San Diego in January, then you should wait until February to fly from London Heathrow Airport, when ticket prices are also cheap, with an average price of £502.

What is the cheapest day to depart on your flight to San Diego?

The cheapest day to depart from London Heathrow Airport to San Diego is on a Monday when prices can be found for as low as £574. Flights from London Heathrow Airport to San Diego on a Sunday will generally be more expensive and average around £592. 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 Heathrow Airport to San Diego when you can find flight prices for as low as £565. 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 £642. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

Fly from London Heathrow to San Diego for the best London Heathrow - 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 Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around £586 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 Heathrow Airport for as low as £534 on momondo.

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

There are 4 cabin classes available to choose from on London Heathrow 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 Heathrow Airport to San Diego flights?

You could potentially save up to 34% on your flight if you consider stops on a London Heathrow Airport to San Diego flight.

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

As of October 2025, prices for London Heathrow Airport to San Diego flights are approximately 7% cheaper when compared to flights at the same time last year.

When to book flights from London Heathrow Airport to San Diego

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

Estimated return price

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

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

Best price found	£473
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 Heathrow Airport in the past 72 hours is £473. The best return flight deal from London Heathrow Airport to San Diego found on momondo in the last 72 hours is £524.

The fastest flight from London Heathrow Airport to San Diego takes 11h 20m

Direct flights go from London Heathrow Airport to San Diego every day.

There is 1 airport near San Diego: San Diego (SAN)

Search flight deals

How far is London Heathrow to San Diego by plane?
London Heathrow and San Diego are 5468.7 mi apart from one another. In terms of flight time, this usually takes a little over 11h 20m.
When did momondo last update prices for flights from London Heathrow Airport to San Diego Airport?
Prices for flights from London Heathrow Airport to San Diego Airport were last updated today.
How many operators does momondo search for flights from London Heathrow Airport to San Diego Airport?
As of October 2025, there are 12 operators available to choose from for flights from London Heathrow Airport to San Diego Airport.
How old do you have to be to fly from London Heathrow Airport 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 Heathrow Airport to San Diego Airport.
What documentation or ID do you need to fly to San Diego Airport?
The travel and health documents required for your trip to San Diego Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Diego Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from London Heathrow Airport to San Diego?
momondo data reveals that the most frequently booked plane model on the route from London Heathrow Airport to San Diego is Boeing 787-8 Dreamliner, representing 37.25% of all bookings. The subsequent popular models are Boeing 777 at 35.02%, Boeing 777-300ER at 13.29%, and Airbus A350-1000 at 6.65%.
What is the most popular airline from London Heathrow Airport to San Diego?
Based on momondo bookings for flights between London Heathrow Airport and San Diego, the leading airline is British Airways, making up 62% of the total bookings. Other popular airlines include Lufthansa with 8%, Iberia with 7%, and Virgin Atlantic with 7%.

Best airlines flying from London Heathrow Airport to San Diego

Compare and see reviews for airlines that fly from London Heathrow Airport to San Diego with momondo

Airline	Rating	Free Cancellation	Price
Air Canada	PriceFrom £394	Free Cancellation	Rating 7.1 10,385 reviews	Search Air Canada flights
Virgin Atlantic	PriceFrom £408	Free Cancellation	Rating 7.5 671 reviews	Search Virgin Atlantic flights
Lufthansa	PriceFrom £418	Free Cancellation	Rating 6.8 7,543 reviews	Search Lufthansa flights
British Airways	PriceFrom £419	Free Cancellation	Rating 6.7 7,489 reviews	Search British Airways flights
Air France	PriceFrom £424	Free Cancellation	Rating 7.4 1,482 reviews	Search Air France flights
United Airlines	PriceFrom £428	Free Cancellation	Rating 7.4 8,995 reviews	Search United Airlines flights
Finnair	PriceFrom £431	Free Cancellation	Rating 7.6 1,333 reviews	Search Finnair flights
KLM	PriceFrom £433	Free Cancellation	Rating 7.7 1,406 reviews	Search KLM flights
JetBlue	PriceFrom £463	Free Cancellation	Rating 7.2 2,906 reviews	Search JetBlue flights
Iberia	PriceFrom £485	Free Cancellation	Rating 7.0 3,004 reviews	Search Iberia flights

Finnair Flights From London Heathrow Airport to San Diego
Finnair flies from London Heathrow Airport to San Diego around 4 times per week, with 1,333 momondo users rating the airline 7.6/10. The cheapest Finnair deal from London Heathrow Airport to San Diego in the last 72 hours was £431 (round-trip), much lower than the average airfare cost of £559 for Finnair flights on this route.
American Airlines Flights From London Heathrow Airport to San Diego
Another popular option for London Heathrow Airport to San Diego flights is American Airlines (7.2/10, 11,033 ratings). American Airlines flies from London Heathrow Airport to San Diego around 4 times per week, with deals starting from £496 round-trip and rising to an average price of around £679.

Coronado

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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?

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

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.

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Cheap flights from London Heathrow Airport to San Diego from £402

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How to get the cheapest flight ticket from London Heathrow Airport 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 cheapest month to fly to San Diego?

If you don’t want to visit San Diego in January, then you should wait until February to fly from London Heathrow Airport, when ticket prices are also cheap, with an average price of £502.

What is the cheapest day to depart on your flight to San Diego?

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

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

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

How far in advance should I book a flight to San Diego?

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

There are 4 cabin classes available to choose from on London Heathrow 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 Heathrow Airport to San Diego flights?

You could potentially save up to 34% on your flight if you consider stops on a London Heathrow Airport to San Diego flight.

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

As of October 2025, prices for London Heathrow Airport to San Diego flights are approximately 7% cheaper when compared to flights at the same time last year.

What is the cheapest airline that flies from London Heathrow to San Diego?

SWISS, Lufthansa, and Finnair are the most popular carriers operating from London Heathrow to San Diego

Which airlines fly to San Diego?

How often are flights from London to San Diego delayed?

Historically, on average around 19% of flights between London and San Diego have experienced a delay on any given week. The average delay length over the past 12 months has been 145 minutes.

What is the most punctual flight time for London to San Diego flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the early afternoon have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on London to San Diego flights?

According to our data, American Airlines have had the fewest delays on this route over the last 12 months, with about 16% of their flights experiencing any sort of delay.

Which airport is the most popular for stopovers for flights between London Heathrow Airport and San Diego?

Los Angeles (LAX) was the most common stop: 55% of momondo users choosing one-stop flights on this route connected there.

Which stopover airport offers the lowest fares from London Heathrow Airport to San Diego?

Flights via Denver (DEN) offer the lowest average return price of £562.

Which stopover airport has the shortest travel time from London Heathrow Airport to San Diego?

Flights connecting via Denver (DEN) have the shortest average one-way travel time: 13h 56m.

Which stopover airport has the shortest connection time from London Heathrow Airport to San Diego?

Denver (DEN) has the shortest average stopover time for this route: 1h 24m.

How many flights depart from London Heathrow Airport to San Diego on average per day?

The number of flights available between London Heathrow Airport and San Diego is 3 per day as of October 2025. The most frequent departure time is 11:00, with 66% of daily flights leaving in the afternoon.

How many flights depart from London Heathrow Airport to San Diego on average per week?

24 flights are operational weekly from London Heathrow Airport to San Diego as of October 2025. The most popular departure day for this route is Wed, with 25% of flights per week taking off on this day.

When to book flights from London Heathrow Airport to San Diego

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

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

Best price found

Fastest flight time

Direct flights

Airports in San Diego

How far is London Heathrow to San Diego by plane?

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

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

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

What documentation or ID do you need to fly to San Diego Airport?

What is the most popular plane model from London Heathrow Airport to San Diego?

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

Best airlines flying from London Heathrow Airport to San Diego

Compare and see reviews for airlines that fly from London Heathrow Airport to San Diego with momondo

Finnair Flights From London Heathrow Airport to San Diego

American Airlines Flights From London Heathrow Airport to San Diego

Travelling to a place near San Diego?

Why use momondo?

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