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.

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

Virgin Atlantic, Lufthansa, and SWISS are the most popular carriers operating from London to San Diego

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

The number of flights available between London and San Diego is 5 per day as of January 2026. The most frequent departure time is 12:00PM, with 100% of daily flights leaving in the afternoon.

How often are flights from London to San Diego delayed?

Historically, on average around 16% 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 154 minutes.

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

As of January 2026, 37 flights take off from London and land in San Diego each week. The most common flight departure day for this route is Mon, with 16% of weekly flights taking off on this day.

What airlines fly to San Diego?

British Airways, American Airlines and United Airlines are the top three most popular airlines that fly to San Diego from London according to our data. British Airways is the first choice among our users, with 49% 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.

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

According to our data, British Airways 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 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.

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

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

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

There are 4 operators available for flights from London to San Diego Airport as of January 2026.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London to San Diego Airport.

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

The travel and health documents you'll need for your trip to San Diego 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 San Diego Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$342 Cheap Flights from London to San Diego in 2026

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

Prices are currently typical for flights on this route. Typical prices usually range from $588 to $729. The lowest price recently found on this route was $592.

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Find the cheapest flights from London to San Diego

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

9:00 am - 8:49 pm

LHR

SAN

19h 49m

2 stops

4:00 pm - 5:50 pm

SAN

LHR

18h 50m

2 stops

$592SWISS

Wed, Feb 25 - Tue, Mar 10

9:20 am - 10:44 pm

LCY

SAN

21h 24m

2 stops

10:59 am - 12:55 pm

SAN

LCY

17h 56m

2 stops

$593SWISS

Fri, Feb 20 - Wed, Mar 4

9:00 am - 10:44 pm

LHR

SAN

21h 44m

2 stops

10:59 am - 1:00 pm

SAN

LHR

18h 01m

2 stops

$593SWISS

Wed, Feb 25 - Wed, Mar 4

7:10 pm - 3:25 pm

LHR

SAN

28h 15m

1 stop

9:09 am - 11:10 am

SAN

LHR

18h 01m

1 stop

$594Lufthansa

Fri, May 1 - Wed, May 13

11:35 am - 2:55 pm

LHR

SAN

11h 20mnonstop

9:05 am - 6:50 am

SAN

LHR

13h 45m

1 stop

$595British Airways

Wed, Apr 22 - Wed, Apr 29

8:20 am - 3:49 pm

LHR

SAN

15h 29m

1 stop

3:38 pm - 12:15 pm

SAN

LHR

13h 37m

1 stop

$596British Airways

Mon, Feb 23 - Mon, Mar 9

9:30 am - 10:00 pm

LHR

SAN

20h 30m

2 stops

8:00 am - 8:25 am

SAN

LHR

16h 25m

2 stops

$597United Airlines

Mon, Feb 23 - Mon, Mar 2

7:40 pm - 8:37 pm

LGW

SAN

31h 57m

2 stops

9:00 am - 7:00 pm

SAN

LGW

27h 00m

2 stops

$601Iberia

Tue, Mar 10 - Tue, Mar 17

1:35 pm - 10:44 pm

LHR

SAN

17h 09m

1 stop

7:45 am - 7:25 am

SAN

LHR

15h 40m

1 stop

$601Lufthansa

Tue, Feb 24 - Wed, Mar 4

11:45 am - 10:00 am

LGW

SAN

30h 15m

2 stops

9:00 am - 7:00 pm

SAN

LGW

27h 00m

2 stops

$631Iberia

Mon, Feb 23 - Mon, Mar 9

Finnair flights from London to San Diego

Our best Finnair deals on London to San Diego flight tickets

Finnair

Feb 3

LHR10:35 amLondon Heathrow

16h 37m

1 stop

SAN7:12 pmSan Diego

Feb 8

SAN1:19 pmSan Diego

33h 31m

1 stop

LHR6:50 amLondon Heathrow

$594

Finnair

Feb 7

LHR11:45 amLondon Heathrow

16h 51m

1 stop

SAN8:36 pmSan Diego

Feb 22

SAN6:00 pmSan Diego

10h 35m

LHR12:35 pmLondon Heathrow

$671

Finnair

Feb 3

LHR12:50 pmLondon Heathrow

11h 20m

SAN4:10 pmSan Diego

Feb 8

SAN1:27 pmSan Diego

35h 08m

1 stop

LHR8:35 amLondon Heathrow

$684

American Airlines flights from London to San Diego

Our best American Airlines deals on London to San Diego flight tickets

American Airlines

Apr 21

LHR2:30 pmLondon Heathrow

11h 20m

SAN5:50 pmSan Diego

Apr 28

SAN9:11 amSan Diego

13h 09m

1 stop

LHR6:20 amLondon Heathrow

$613

American Airlines

Feb 24

LHR12:50 pmLondon Heathrow

11h 20m

SAN4:10 pmSan Diego

Mar 5

SAN10:50 amSan Diego

13h 45m

1 stop

LHR8:35 amLondon Heathrow

$618

American Airlines

Apr 14

LHR10:05 amLondon Heathrow

13h 42m

1 stop

SAN3:47 pmSan Diego

Apr 21

SAN7:40 pmSan Diego

10h 40m

LHR2:20 pmLondon Heathrow

$619

Fly from

Fly to

Route

Depart

Return

Price

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Wed 2/25

9:00 am-8:49 pm

2 stops19h 49m

San Diego

Tue 3/10

4:00 pm-5:50 pm

2 stops18h 50m

$592

LondonSan Diego

LCY - SAN

LCYSAN

London City

Fri 2/20

9:20 am-10:44 pm

2 stops21h 24m

San Diego

Wed 3/4

10:59 am-12:55 pm

2 stops17h 56m

$593

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Wed 2/25

9:00 am-10:44 pm

2 stops21h 44m

San Diego

Wed 3/4

10:59 am-1:00 pm

2 stops18h 01m

$593

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Fri 5/1

7:10 pm-3:25 pm

1 stop28h 15m

San Diego

Wed 5/13

9:09 am-11:10 am

1 stop18h 01m

$594

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Wed 4/22

11:35 am-2:55 pm

Nonstop11h 20m

San Diego

Wed 4/29

9:05 am-6:50 am

1 stop13h 45m

$595

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Mon 2/23

8:20 am-3:49 pm

1 stop15h 29m

San Diego

Mon 3/9

3:38 pm-12:15 pm

1 stop13h 37m

$596

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Mon 2/23

9:30 am-10:00 pm

2 stops20h 30m

San Diego

Mon 3/2

8:00 am-8:25 am

2 stops16h 25m

$597

LondonSan Diego

LGW - SAN

LGWSAN

London Gatwick

Tue 3/10

7:40 pm-8:37 pm

2 stops31h 57m

San Diego

Tue 3/17

9:00 am-7:00 pm

2 stops27h 00m

$601

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Tue 2/24

1:35 pm-10:44 pm

1 stop17h 09m

San Diego

Wed 3/4

7:45 am-7:25 am

1 stop15h 40m

$601

LondonSan Diego

LGW - SAN

LGWSAN

London Gatwick

Mon 2/23

11:45 am-10:00 am

2 stops30h 15m

San Diego

Mon 3/9

9:00 am-7:00 pm

2 stops27h 00m

$631

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from London 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 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 during the month February is also very affordable. Most momondo users find prices during this month for around $652.

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

The cheapest day to depart from London to San Diego is on a Monday. Travelers who choose to depart for San Diego on a Monday will often find tickets for as low as $733. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $940. 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 in the morning when flights can be purchased for as low as $788. Flights at noon are often more expensive with an average ticket price of $804.

What is the cheapest London to San Diego flight route?

Fly from London Heathrow to San Diego for the best London - 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 when booking weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around $782 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 for as low as $719 on momondo.

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

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

No. A direct flight is the cheapest option for a flight between London to San Diego.

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

As of January 2026, prices for London to San Diego flights are approximately 7% more expensive when compared to flights at the same time last year.

When to book flights from London to San Diego

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

Estimated round-trip price

Cheap London to San Diego (LON to SAN) flight deals and tips

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

Best Price Found	$586
Fastest flight time	11h 20m
Direct flights	Mon, Tue, Wed, Thu, Fri and Sat
Airports in San Diego	1 airport

The best one-way flight to San Diego from London in the past 72 hours is $586. The best round-trip flight deal from London to San Diego found on momondo in the last 72 hours is $650.

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

Direct flights go from London to San Diego on Monday, Tuesday, Wednesday, Thursday, Friday and Saturday. There are no airlines offering direct flights.

There is 1 airport in San Diego. From London there are direct flights to San Diego (SAN).

Search flight deals

How far is London to San Diego by plane?
London and San Diego are 5478.3 mi apart from one another. Flights usually cover this in 11h 20m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from London to San Diego Airport?
Prices for flights from London to San Diego Airport are refreshed on a daily basis.
How many operators does momondo search for flights from London to San Diego Airport?
There are 4 operators available for flights from London to San Diego Airport as of January 2026.
How old do you have to be to fly from London to San Diego Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London to San Diego Airport.
What documentation or ID do you need to fly to San Diego Airport?
The travel and health documents you'll need for your trip to San Diego 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 San Diego 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 London to San Diego?
momondo data reveals that the most frequently booked plane model on the route from London to San Diego is Boeing 777, representing 43.89% of all bookings. The subsequent popular models are Boeing 777-300ER at 29.19%, Boeing 777-300 at 8.09%, and Boeing 787-8 Dreamliner at 7.32%.
What is the most popular airline from London to San Diego?
Based on momondo bookings for flights between London and San Diego, the leading airline is British Airways, making up 52% of the total bookings. Other popular airlines include American Airlines with 29%, Iberia with 10%, and United Airlines with 9%.

Best airlines flying from London to San Diego

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

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $533	Free Cancellation	Rating 7.4 9,198 reviews	Search United Airlines flights
Iberia	PriceFrom $599	Free Cancellation	Rating 7.0 3,098 reviews	Search Iberia flights
British Airways	PriceFrom $614	Free Cancellation	Rating 6.7 7,700 reviews	Search British Airways flights
American Airlines	PriceFrom $664	Free Cancellation	Rating 7.2 11,189 reviews	Search American Airlines flights

American Airlines Flights From London to San Diego
American Airlines operates around 6 flights from London to San Diego every week. The average price of these flights found in the last 72 hours has been $850, but momondo users have found American Airlines deals from London to San Diego from as low as $664 round-trip. American Airlines has been scored 7.2/10 in 11,189 reviews.
Iberia Flights From London to San Diego
Another popular option for London to San Diego flights is Iberia (7.0/10, 3,098 ratings). Iberia flies from London to San Diego around 6 times per week, with deals starting from $599 round-trip and rising to an average price of around $817.

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El Cajon

Julian

Poway

National City

Imperial Beach

San Ysidro

Borrego Springs

La Mesa

Alpine

Lemon Grove

Santee

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?

Flights from London to San Diego 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 London to San Diego?

Once all potential London to San Diego flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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 simply researching potential flights to San Diego, momondo offers a useful price alert feature which will track prices for flights to San Diego from London and alert you when they change.

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Cheap flights from London to San Diego from $361

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London to San Diego departing on 3/16. 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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Use the filters below to find and compare flights from London to San Diego that are best for you.

See travel insights to San Diego from

How to get the cheapest flight ticket from London to San Diego

What is the typical price of a round-trip flight between London 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 during the month February is also very affordable. Most momondo users find prices during this month for around $652.

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 in the morning when flights can be purchased for as low as $788. Flights at noon are often more expensive with an average ticket price of $804.

What is the cheapest London to San Diego flight route?

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

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

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

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

No. A direct flight is the cheapest option for a flight between London to San Diego.

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

As of January 2026, prices for London to San Diego flights are approximately 7% more expensive when compared to flights at the same time last year.

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

Virgin Atlantic, Lufthansa, and SWISS are the most popular carriers operating from London to San Diego

What airlines fly to San Diego?

How often are flights from London to San Diego delayed?

Historically, on average around 16% 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 154 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, British Airways 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 to San Diego on average per day?

The number of flights available between London and San Diego is 5 per day as of January 2026. The most frequent departure time is 12:00PM, with 100% of daily flights leaving in the afternoon.

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

As of January 2026, 37 flights take off from London and land in San Diego each week. The most common flight departure day for this route is Mon, with 16% of weekly flights taking off on this day.

When to book flights from London to San Diego

Cheap London to San Diego (LON to SAN) flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in San Diego

How far is London to San Diego by plane?

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

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

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

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

Best airlines flying from London to San Diego

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

American Airlines Flights From London to San Diego

Iberia Flights From London 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