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

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

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

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

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 airlines fly to San Diego?

British Airways, United Airlines and American Airlines 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 52% of people opting to fly with this airline when traveling to San Diego. Keep in mind that there are 4 different airlines that fly to San Diego on a routine basis, so you have a few additional options to choose from.

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 in the early afternoon have, in the past, seen delays more frequently in comparison.

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

British Airways, Air Canada, and United Airlines are the most popular carriers operating from London Heathrow to San Diego

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 are updated daily.

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

As of November 2025, there are 4 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 necessary travel and health documents for your San Diego Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$531 Cheap Flights from London Heathrow Airport to San Diego in 2025/26

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

As of November 2025, 5 flights take off from London Heathrow Airport and land in San Diego each day. The most common flight departure time for this route is 12:00PM, with 100% of daily flights taking off in the afternoon.

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7:25 pm - 8:33 pmLHR-SAN

33h 08m2 stops

7:00 am - 11:15 amSAN-LHR

20h 15m1 stop

$639Austrian Airlines

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Tue, Dec 2 - Wed, Dec 10

12:50 pm - 4:10 pmLHR-SAN

11h 20mnonstop

1:38 pm - 11:15 amSAN-LHR

13h 37m1 stop

$653British Airways

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Wed, Mar 4 - Tue, Mar 31

12:50 pm - 4:10 pmLHR-SAN

11h 20mnonstop

6:00 pm - 12:35 pmSAN-LHR

10h 35mnonstop

$655British Airways

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Mon, Feb 2 - Wed, Mar 4

8:05 pm - 8:48 pmLHR-SAN

32h 43m2 stops

7:42 am - 6:40 amSAN-LHR

14h 58m1 stop

$662Multiple Airlines

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Tue, Dec 2 - Tue, Dec 9

8:45 am - 3:45 pmLHR-SAN

15h 00m1 stop

12:40 pm - 11:50 amSAN-LHR

15h 10m1 stop

$668Multiple Airlines

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Wed, Mar 4 - Tue, Mar 31

8:05 pm - 10:30 pmLHR-SAN

34h 25m2 stops

10:52 am - 1:00 pmSAN-LHR

18h 08m2 stops

$672SWISS

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Tue, Dec 2 - Tue, Dec 9

8:05 pm - 10:30 pmLHR-SAN

34h 25m2 stops

10:52 am - 1:00 pmSAN-LHR

18h 08m2 stops

$673SWISS

Find Deal

Tue, Dec 2 - Tue, Dec 9

6:30 am - 6:28 pmLHR-SAN

19h 58m2 stops

11:02 am - 1:30 pmSAN-LHR

18h 28m1 stop

$679United Airlines

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Wed, Dec 3 - Wed, Dec 10

6:35 am - 4:45 pmLHR-SAN

17h 10m1 stop

12:45 pm - 9:40 amSAN-LHR

12h 55m1 stop

$680United Airlines

Find Deal

Tue, Mar 17 - Tue, Mar 31

11:45 am - 7:43 pmLHR-SAN

15h 58m1 stop

6:00 pm - 12:35 pmSAN-LHR

10h 35mnonstop

$714American Airlines

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Tue, Dec 2 - Thu, Dec 11

Austrian Airlines flights from London Heathrow Airport to San Diego

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

Austrian Airlines

Dec 2

LHR7:25 pmLondon Heathrow

33h 08m

2 stops

SAN8:33 pmSan Diego

Dec 10

SAN7:00 amSan Diego

20h 15m

1 stop

LHR11:15 amLondon Heathrow

$639

Find similar

Austrian Airlines

Dec 2

LHR4:20 pmLondon Heathrow

36h 13m

1 stop

SAN8:33 pmSan Diego

Dec 9

SAN7:42 amSan Diego

14h 58m

1 stop

LHR6:40 amLondon Heathrow

$689

Find similar

Austrian Airlines

Dec 2

LHR4:20 pmLondon Heathrow

36h 13m

1 stop

SAN8:33 pmSan Diego

Dec 15

SAN7:00 amSan Diego

14h 55m

1 stop

LHR5:55 amLondon Heathrow

$692

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British Airways flights from London Heathrow Airport to San Diego

Our best British Airways deals on London Heathrow Airport to San Diego flight tickets

British Airways

Mar 4

LHR12:50 pmLondon Heathrow

11h 20m

SAN4:10 pmSan Diego

Mar 31

SAN1:38 pmSan Diego

13h 37m

1 stop

LHR11:15 amLondon Heathrow

$653

Find similar

British Airways

Feb 2

LHR12:50 pmLondon Heathrow

11h 20m

SAN4:10 pmSan Diego

Mar 4

SAN6:00 pmSan Diego

10h 35m

LHR12:35 pmLondon Heathrow

$655

Find similar

British Airways

Mar 17

LHR12:50 pmLondon Heathrow

11h 20m

SAN5:10 pmSan Diego

Mar 31

SAN4:50 pmSan Diego

13h 35m

1 stop

LHR2:25 pmLondon Heathrow

$656

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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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LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Tue 12/2

7:25 pm-8:33 pm

2 stops33h 08m

San Diego

Wed 12/10

7:00 am-11:15 am

1 stop20h 15m

$639

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Wed 3/4

12:50 pm-4:10 pm

Nonstop11h 20m

San Diego

Tue 3/31

1:38 pm-11:15 am

1 stop13h 37m

$653

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Mon 2/2

12:50 pm-4:10 pm

Nonstop11h 20m

San Diego

Wed 3/4

6:00 pm-12:35 pm

Nonstop10h 35m

$655

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Tue 12/2

8:05 pm-8:48 pm

2 stops32h 43m

San Diego

Tue 12/9

7:42 am-6:40 am

1 stop14h 58m

$662

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Wed 3/4

8:45 am-3:45 pm

1 stop15h 00m

San Diego

Tue 3/31

12:40 pm-11:50 am

1 stop15h 10m

$668

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Tue 12/2

8:05 pm-10:30 pm

2 stops34h 25m

San Diego

Tue 12/9

10:52 am-1:00 pm

2 stops18h 08m

$672

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Tue 12/2

8:05 pm-10:30 pm

2 stops34h 25m

San Diego

Tue 12/9

10:52 am-1:00 pm

2 stops18h 08m

$673

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Wed 12/3

6:30 am-6:28 pm

2 stops19h 58m

San Diego

Wed 12/10

11:02 am-1:30 pm

1 stop18h 28m

$679

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Tue 3/17

6:35 am-4:45 pm

1 stop17h 10m

San Diego

Tue 3/31

12:45 pm-9:40 am

1 stop12h 55m

$680

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Tue 12/2

11:45 am-7:43 pm

1 stop15h 58m

San Diego

Thu 12/11

6:00 pm-12:35 pm

Nonstop10h 35m

$714

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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

Other information

What is the typical price of a round-trip flight between London Heathrow Airport and San Diego?

What is the cheapest month to fly to San Diego?

If you are unable to visit San Diego during the month of January, then departing from London Heathrow Airport during the month February is also very affordable. Most momondo users find prices during this month for around $661.

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 Wednesday. Travelers who choose to depart for San Diego on a Wednesday will often find tickets for as low as $740. If your travel schedule is flexible, try to avoid departing on a Thursday because tickets tend to average around $955. These prices are subject to change though, so be sure to set up a Price Alert for flights to San Diego.

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

The cheapest time of day to fly to San Diego is at noon when flights can be purchased for as low as $800. Flights in the morning are often more expensive with an average ticket price of $803.

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 $771 when searching weeks out. 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 $704 on momondo.

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

There are 3 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 1% 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 November 2025, prices for London Heathrow Airport to San Diego flights are approximately 13% more expensive 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 round-trip 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	$582
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 $582. The best round-trip flight deal from London Heathrow Airport to San Diego found on momondo in the last 72 hours is $1,055.

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?
A flight from London Heathrow to San Diego will travel around 5468.7 mi. A reasonable flight in good conditions will take 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 are updated daily.
How many operators does momondo search for flights from London Heathrow Airport to San Diego Airport?
As of November 2025, there are 4 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 necessary travel and health documents for your San Diego Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from London Heathrow Airport to San Diego?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from London Heathrow Airport to San Diego is Boeing 777 (38.49% of total bookings). The next most popular plane models are Boeing 787-8 Dreamliner (34.82%), Boeing 777-300ER (12.19%), and Airbus A350-1000 (7.40%).
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 58% of the total bookings. Other popular airlines include American Airlines with 21%, Iberia with 12%, and United Airlines with 10%.

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
United Airlines	PriceFrom $533	Free Cancellation	Rating 7.4 8,998 reviews	Search United Airlines flights
British Airways	PriceFrom $589	Free Cancellation	Rating 6.7 7,494 reviews	Search British Airways flights
Iberia	PriceFrom $599	Free Cancellation	Rating 7.0 3,006 reviews	Search Iberia flights
American Airlines	PriceFrom $664	Free Cancellation	Rating 7.2 11,038 reviews	Search American Airlines flights

American Airlines Flights From London Heathrow Airport to San Diego
American Airlines is one of the most popular airlines flying from London Heathrow Airport to San Diego, operating 6 flights/week on average for this route. A good American Airlines flight deal for London Heathrow Airport to San Diego starts from $664 round-trip, up to an average price of $843. Our users have rated American Airlines at 7.2/10.
Iberia Flights From London Heathrow Airport to San Diego
Across 3,006 Iberia reviews on momondo, the average score is 7.0/10. Iberia flies from London Heathrow Airport to San Diego about 6 times each week, with ticket deals ranging from $599 to $784. Price data is based on momondo searches in the last 72 hours.

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Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to San Diego from London.

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

momondo does allow users to show only those flights to San Diego from London which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to San Diego from London.

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

If you are not ready to book a flight from London to San Diego now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to San Diego and let you know when they change.

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Cheap flights from London Heathrow Airport to San Diego from $531

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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 typical price of a round-trip flight between London Heathrow Airport and San Diego?

What is the cheapest month to fly to San Diego?

If you are unable to visit San Diego during the month of January, then departing from London Heathrow Airport during the month February is also very affordable. Most momondo users find prices during this month for around $661.

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?

The cheapest time of day to fly to San Diego is at noon when flights can be purchased for as low as $800. Flights in the morning are often more expensive with an average ticket price of $803.

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 3 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 1% 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 November 2025, prices for London Heathrow Airport to San Diego flights are approximately 13% more expensive when compared to flights at the same time last year.

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

British Airways, Air Canada, and United Airlines are the most popular carriers operating from London Heathrow to San Diego

What 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 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 which experiences the fewest number of 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 least number of delays on this route over the last 12 months; with about 16% of their flights experiencing any sort of delay.

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

As of November 2025, 5 flights take off from London Heathrow Airport and land in San Diego each day. The most common flight departure time for this route is 12:00PM, with 100% of daily flights taking off in the afternoon.

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

36 flights are operational weekly from London Heathrow Airport to San Diego as of November 2025. The most popular departure day for this route is Mon, with 17% 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

American Airlines Flights From London Heathrow Airport to San Diego

Iberia Flights From London Heathrow Airport to San Diego

Traveling to a place near San Diego?

Why use momondo?

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

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

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

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

An easier way to manage your San Diego trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down