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

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

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 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.

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

As of November 2025, 36 flights take off from London and land in San Diego each week. The most common flight departure day for this route is Mon, with 17% of weekly flights taking off on this day.

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 November 2025. The most frequent departure time is 12:00PM, with 100% of daily flights leaving in the afternoon.

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 November 2025.

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.

$539 Cheap Flights from London to San Diego in 2025/26

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 $630 to $852. The lowest price recently found on this route was $654.

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12:50 pm - 4:10 pmLHR-SAN

11h 20mnonstop

6:00 pm - 12:35 pmSAN-LHR

10h 35mnonstop

$654British Airways

Find Deal

Wed, Feb 11 - Wed, Feb 18

12:50 pm - 4:10 pmLHR-SAN

11h 20mnonstop

4:40 pm - 1:15 pmSAN-LHR

12h 35m1 stop

$657British Airways

Find Deal

Wed, Feb 11 - Wed, Feb 18

12:50 pm - 4:10 pmLHR-SAN

11h 20mnonstop

4:00 pm - 1:15 pmSAN-LHR

13h 15m1 stop

$659British Airways

Find Deal

Wed, Jan 21 - Wed, Feb 4

7:40 am - 7:52 pmLHR-SAN

20h 12m2 stops

7:00 am - 6:40 amSAN-LHR

15h 40m2 stops

$677United Airlines

Find Deal

Mon, Dec 8 - Mon, Dec 15

6:35 am - 3:45 pmLHR-SAN

17h 10m1 stop

12:11 pm - 10:15 amSAN-LHR

14h 04m1 stop

$680United Airlines

Find Deal

Wed, Feb 4 - Tue, Feb 10

11:20 am - 11:21 amLGW-SAN

32h 01m2 stops

7:00 am - 9:00 amSAN-LGW

42h 00m2 stops

$716American Airlines

Find Deal

Fri, Feb 20 - Tue, Feb 24

6:30 am - 6:13 pmLHR-SAN

19h 43m2 stops

6:15 am - 7:05 amSAN-LHR

16h 50m2 stops

$716Delta

Find Deal

Wed, Dec 10 - Wed, Dec 17

11:20 am - 1:36 pmLGW-SAN

34h 16m2 stops

6:15 am - 9:00 amSAN-LGW

42h 45m2 stops

$717American Airlines

Find Deal

Fri, Feb 20 - Tue, Feb 24

7:40 pm - 8:41 pmLGW-SAN

33h 01m2 stops

6:20 am - 10:50 amSAN-LGW

20h 30m2 stops

$860Iberia

Find Deal

Sun, Jan 11 - Tue, Jan 20

9:20 am - 6:06 pmLCY-SAN

16h 46m2 stops

7:20 am - 7:15 amSAN-LCY

15h 55m2 stops

$922Delta

Find Deal

Tue, Dec 2 - Tue, Dec 9

United Airlines flights from London to San Diego

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

United Airlines

Dec 8

LHR7:40 amLondon Heathrow

20h 12m

2 stops

SAN7:52 pmSan Diego

Dec 15

SAN7:00 amSan Diego

15h 40m

2 stops

LHR6:40 amLondon Heathrow

$677

Find similar

United Airlines

Feb 4

LHR6:35 amLondon Heathrow

17h 10m

1 stop

SAN3:45 pmSan Diego

Feb 10

SAN12:11 pmSan Diego

14h 04m

1 stop

LHR10:15 amLondon Heathrow

$680

Find similar

United Airlines

Feb 9

LHR9:00 amLondon Heathrow

21h 33m

2 stops

SAN10:33 pmSan Diego

Feb 26

SAN11:04 amSan Diego

12h 51m

1 stop

LHR7:55 amLondon Heathrow

$681

Find similar

Air Canada flights from London to San Diego

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

Air Canada

Jan 7

LHR6:00 pmLondon Heathrow

34h 42m

2 stops

SAN8:42 pmSan Diego

Jan 19

SAN6:05 pmSan Diego

33h 45m

1 stop

LHR11:50 amLondon Heathrow

$707

Find similar

Air Canada

Jan 7

LHR6:00 pmLondon Heathrow

34h 42m

2 stops

SAN8:42 pmSan Diego

Jan 15

SAN2:11 pmSan Diego

32h 59m

2 stops

LHR7:10 amLondon Heathrow

$711

Find similar

Air Canada

Feb 2

LHR2:30 pmLondon Heathrow

29h 33m

1 stop

SAN12:03 pmSan Diego

Feb 12

SAN12:45 pmSan Diego

15h 05m

1 stop

LHR11:50 amLondon Heathrow

$712

Find similar

Fly from

Fly to

Route

Depart

Return

Price

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Wed 2/11

12:50 pm-4:10 pm

Nonstop11h 20m

San Diego

Wed 2/18

6:00 pm-12:35 pm

Nonstop10h 35m

$654

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Wed 2/11

12:50 pm-4:10 pm

Nonstop11h 20m

San Diego

Wed 2/18

4:40 pm-1:15 pm

1 stop12h 35m

$657

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Wed 1/21

12:50 pm-4:10 pm

Nonstop11h 20m

San Diego

Wed 2/4

4:00 pm-1:15 pm

1 stop13h 15m

$659

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Mon 12/8

7:40 am-7:52 pm

2 stops20h 12m

San Diego

Mon 12/15

7:00 am-6:40 am

2 stops15h 40m

$677

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Wed 2/4

6:35 am-3:45 pm

1 stop17h 10m

San Diego

Tue 2/10

12:11 pm-10:15 am

1 stop14h 04m

$680

LondonSan Diego

LGW - SAN

LGWSAN

London Gatwick

Fri 2/20

11:20 am-11:21 am

2 stops32h 01m

San Diego

Tue 2/24

7:00 am-9:00 am

2 stops42h 00m

$716

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Wed 12/10

6:30 am-6:13 pm

2 stops19h 43m

San Diego

Wed 12/17

6:15 am-7:05 am

2 stops16h 50m

$716

LondonSan Diego

LGW - SAN

LGWSAN

London Gatwick

Fri 2/20

11:20 am-1:36 pm

2 stops34h 16m

San Diego

Tue 2/24

6:15 am-9:00 am

2 stops42h 45m

$717

LondonSan Diego

LGW - SAN

LGWSAN

London Gatwick

Sun 1/11

7:40 pm-8:41 pm

2 stops33h 01m

San Diego

Tue 1/20

6:20 am-10:50 am

2 stops20h 30m

$860

LondonSan Diego

LCY - SAN

LCYSAN

London City

Tue 12/2

9:20 am-6:06 pm

2 stops16h 46m

San Diego

Tue 12/9

7:20 am-7:15 am

2 stops15h 55m

$922

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

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 February, then departing from London during the month March is also very affordable. Most momondo users find prices during this month for around $681.

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 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 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 $772 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 $710 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?

You could potentially save up to 1% on your flight if you consider stops on a London to San Diego flight.

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

As of November 2025, prices for London to San Diego flights are approximately 3% cheaper 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	$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 in the past 72 hours is $582. The best round-trip flight deal from London to San Diego found on momondo in the last 72 hours is $1,055.

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

Direct flights go from London to San Diego every day.

There is 1 airport near San Diego: 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 November 2025.
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 38.49% of all bookings. The subsequent popular models are Boeing 787-8 Dreamliner at 34.82%, Boeing 777-300ER at 12.19%, and Airbus A350-1000 at 7.40%.
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 47% of the total bookings. Other popular airlines include American Airlines with 23%, Iberia with 13%, and Delta with 7%.

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 9,015 reviews	Search United Airlines flights
British Airways	PriceFrom $589	Free Cancellation	Rating 6.7 7,513 reviews	Search British Airways flights
Iberia	PriceFrom $599	Free Cancellation	Rating 7.0 3,009 reviews	Search Iberia flights
American Airlines	PriceFrom $664	Free Cancellation	Rating 7.2 11,048 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 $843, 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 11,048 reviews.
Iberia Flights From London to San Diego
Another popular option for London to San Diego flights is Iberia (7.0/10, 3,009 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 $784.

Coronado

Chula Vista

El Cajon

Julian

National City

Imperial Beach

La Mesa

Poway

Borrego Springs

San Ysidro

Lemon Grove

Alpine

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.

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.

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Flights to Atlantafrom $44

Flights to Dallasfrom $53

Flights to Seattlefrom $49

Cheap flights from London to San Diego from $539

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 5/1. 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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Filter for what you want

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United Airlines flights from London to San Diego

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

Air Canada flights from London to San Diego

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

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

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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

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 February, then departing from London during the month March is also very affordable. Most momondo users find prices during this month for around $681.

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 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?

You could potentially save up to 1% on your flight if you consider stops on a London to San Diego flight.

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

As of November 2025, prices for London to San Diego flights are approximately 3% cheaper when compared to flights at the same time last year.

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

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

What airlines fly 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 November 2025. 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 November 2025, 36 flights take off from London and land in San Diego each week. The most common flight departure day for this route is Mon, with 17% 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

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing California