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

Denver (DEN) has the shortest average stopover time for this route: 1h 23m.

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.

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 to San Diego?

Flights via Houston (IAH) offer the lowest average return price of £417.

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 12:00, with 100% of daily flights leaving in the afternoon.

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

The number of flights available between London and San Diego is 36 per week as of January 2026. The most frequent departure day is Mon, with 17% of weekly flights leaving on this day.

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.

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

According to our data, British Airways 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 and San Diego?

Denver (DEN) was the most common stop: 41% of momondo users choosing one-stop flights on this route connected there.

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

Flights connecting via Denver (DEN) have the shortest average one-way travel time: 13h 43m.

Which airlines fly to San Diego?

British Airways, Virgin Atlantic and Lufthansa 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 64% of people opting to fly with this airline when travelling to San Diego. Keep in mind that there are 10 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 to San Diego?

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

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

Prices for flights from London to San Diego Airport are updated daily.

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

As of January 2026, there are 10 operators available to choose from for flights from London to San Diego Airport.

How old do you have to be to fly from London 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 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.

£249 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 £423 to £527. The lowest price recently found on this route was £427.

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from London to San Diego

Round-trip

One-way

Last minute

Direct

Cheap return flights

Enter your travel dates to find the best prices.

14:30 - 12:03

LHR

SAN

29h 33m

1 stop

12:55 - 09:40

SAN

LHR

12h 45m

1 stop

£427Multiple Airlines

Sun, 8 Feb - Sun, 22 Feb

07:25 - 20:12

LHR

SAN

20h 47m

2 stops

08:54 - 09:40

SAN

LHR

16h 46m

1 stop

£428United Airlines

Mon, 20 Apr - Sun, 3 May

13:45 - 20:49

LHR

SAN

15h 04m

1 stop

09:54 - 07:25

SAN

LHR

13h 31m

1 stop

£429Lufthansa

Tue, 17 Feb - Sun, 1 Mar

14:30 - 12:39

LHR

SAN

30h 09m

2 stops

06:30 - 11:20

SAN

LHR

20h 50m

2 stops

£430Air Canada

Wed, 18 Feb - Thu, 5 Mar

12:50 - 16:10

LHR

SAN

11h 20mdirect

09:29 - 06:35

SAN

LHR

13h 06m

1 stop

£431British Airways

Mon, 23 Feb - Wed, 4 Mar

07:50 - 21:59

LCY

SAN

22h 09m

2 stops

08:00 - 14:05

SAN

LCY

22h 05m

2 stops

£459British Airways

Wed, 18 Feb - Tue, 3 Mar

11:45 - 10:00

LGW

SAN

30h 15m

2 stops

09:00 - 19:00

SAN

LGW

27h 00m

2 stops

£459Iberia

Mon, 23 Feb - Mon, 9 Mar

11:45 - 08:39

LGW

SAN

28h 54m

2 stops

09:00 - 19:00

SAN

LGW

26h 00m

2 stops

£470Iberia

Mon, 23 Feb - Mon, 2 Mar

18:55 - 12:05

LCY

SAN

25h 10m

1 stop

06:25 - 08:10

SAN

LCY

17h 45m

2 stops

£475Virgin Atlantic

Mon, 23 Feb - Mon, 2 Mar

07:45 - 22:48

LCY

SAN

23h 03m

2 stops

14:00 - 16:35

SAN

LCY

18h 35m

1 stop

£478Virgin Atlantic

Wed, 18 Feb - Tue, 3 Mar

Lufthansa flights from London to San Diego

Our best Lufthansa deals on London to San Diego flight tickets

Lufthansa

17 Feb

LHR13:45London Heathrow

15h 04m

1 stop

SAN20:49San Diego

1 Mar

SAN09:54San Diego

13h 31m

1 stop

LHR07:25London Heathrow

£429

Lufthansa

7 Feb

LHR12:05London Heathrow

17h 51m

1 stop

SAN21:56San Diego

22 Feb

SAN12:55San Diego

12h 45m

1 stop

LHR09:40London Heathrow

£432

Lufthansa

1 May

LHR20:25London Heathrow

27h 00m

1 stop

SAN15:25San Diego

13 May

SAN16:26San Diego

13h 44m

1 stop

LHR14:10London Heathrow

£432

Air Canada flights from London to San Diego

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

Air Canada

18 Feb

LHR14:30London Heathrow

30h 09m

2 stops

SAN12:39San Diego

5 Mar

SAN06:30San Diego

20h 50m

2 stops

LHR11:20London Heathrow

£430

Air Canada

17 Feb

LHR14:30London Heathrow

34h 54m

1 stop

SAN17:24San Diego

28 Feb

SAN18:05San Diego

33h 45m

1 stop

LHR11:50London Heathrow

£430

Air Canada

17 Feb

LHR11:10London Heathrow

35h 39m

2 stops

SAN14:49San Diego

3 Mar

SAN06:30San Diego

16h 40m

2 stops

LHR07:10London Heathrow

£432

Fly from

Fly to

Route

Depart

Return

Price

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Sun 8/2

14:30-12:03

1 stop29h 33m

San Diego

Sun 22/2

12:55-09:40

1 stop12h 45m

£427

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Mon 20/4

07:25-20:12

2 stops20h 47m

San Diego

Sun 3/5

08:54-09:40

1 stop16h 46m

£428

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Tue 17/2

13:45-20:49

1 stop15h 04m

San Diego

Sun 1/3

09:54-07:25

1 stop13h 31m

£429

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Wed 18/2

14:30-12:39

2 stops30h 09m

San Diego

Thu 5/3

06:30-11:20

2 stops20h 50m

£430

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Mon 23/2

12:50-16:10

Nonstop11h 20m

San Diego

Wed 4/3

09:29-06:35

1 stop13h 06m

£431

LondonSan Diego

LCY - SAN

LCYSAN

London City

Wed 18/2

07:50-21:59

2 stops22h 09m

San Diego

Tue 3/3

08:00-14:05

2 stops22h 05m

£459

LondonSan Diego

LGW - SAN

LGWSAN

London Gatwick

Mon 23/2

11:45-10:00

2 stops30h 15m

San Diego

Mon 9/3

09:00-19:00

2 stops27h 00m

£459

LondonSan Diego

LGW - SAN

LGWSAN

London Gatwick

Mon 23/2

11:45-08:39

2 stops28h 54m

San Diego

Mon 2/3

09:00-19:00

2 stops26h 00m

£470

LondonSan Diego

LCY - SAN

LCYSAN

London City

Mon 23/2

18:55-12:05

1 stop25h 10m

San Diego

Mon 2/3

06:25-08:10

2 stops17h 45m

£475

LondonSan Diego

LCY - SAN

LCYSAN

London City

Wed 18/2

07:45-22:48

2 stops23h 03m

San Diego

Tue 3/3

14:00-16:35

1 stop18h 35m

£478

Flights are sorted by cheapest return 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

Stopovers

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 don’t want to visit San Diego in January, then you should wait until February to fly from London, when ticket prices are also cheap, with an average price of £475.

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 Tuesday when prices can be found for as low as £559. Flights from London to San Diego on a Saturday will generally be more expensive and average around £625. 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 morning is the cheapest time of day to fly from London to San Diego when you can find flight prices for as low as £578. Flying to San Diego in the morning is an ideal time because this is during off-peak travel hours. Try not to purchase tickets at midday because they tend to be around £589. Of course, these prices can vary depending on the time of year and what airport you fly to.

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 £569 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 for as low as £523 on momondo.

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

There are 4 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 17% 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 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 return 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	£542
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 £542. The best return flight deal from London to San Diego found on momondo in the last 72 hours is £489.

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 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?
The straight-line distance from London to San Diego is 5478.3 mi. In terms of flight time, this usually takes a little over 11h 20m.
When did momondo last update prices for flights from London to San Diego Airport?
Prices for flights from London to San Diego Airport are updated daily.
How many operators does momondo search for flights from London to San Diego Airport?
As of January 2026, there are 10 operators available to choose from for flights from London to San Diego Airport.
How old do you have to be to fly from London 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 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?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from London to San Diego is Boeing 777 (43.47% of total bookings). The next most popular plane models are Boeing 777-300ER (30.22%), Boeing 777-300 (8.53%), and Boeing 787-8 Dreamliner (6.12%).
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 58% of the total bookings. Other popular airlines include Lufthansa with 9%, Iberia with 7%, and United Airlines with 6%.

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
Air Canada	PriceFrom £378	Free Cancellation	Rating 7.1 10,666 reviews	Search Air Canada flights
Lufthansa	PriceFrom £407	Free Cancellation	Rating 6.8 7,749 reviews	Search Lufthansa flights
KLM	PriceFrom £422	Free Cancellation	Rating 7.7 1,443 reviews	Search KLM flights
United Airlines	PriceFrom £432	Free Cancellation	Rating 7.4 9,213 reviews	Search United Airlines flights
British Airways	PriceFrom £433	Free Cancellation	Rating 6.7 7,704 reviews	Search British Airways flights
Finnair	PriceFrom £433	Free Cancellation	Rating 7.6 1,356 reviews	Search Finnair flights
American Airlines	PriceFrom £437	Free Cancellation	Rating 7.2 11,201 reviews	Search American Airlines flights
Virgin Atlantic	PriceFrom £456	Free Cancellation	Rating 7.5 678 reviews	Search Virgin Atlantic flights
Iberia	PriceFrom £465	Free Cancellation	Rating 7.0 3,099 reviews	Search Iberia flights
JetBlue	PriceFrom £472	Free Cancellation	Rating 7.2 2,891 reviews	Search JetBlue flights

Finnair Flights From London to San Diego
Across 6 Finnair flights from London to San Diego this week, the average price was £600, with the best Finnair deals starting from £433 round-trip. 1,356 users have rated Finnair on momondo, with an average score of 7.6/10.
American Airlines Flights From London to San Diego
The best American Airlines deal for London to San Diego flight tickets found on momondo in the last 72 hours was £437, round-trip. It should be noted that an average American Airlines flight deal for this route in this time was higher, at £637 round-trip. American Airlines operates 6 flights out of London into San Diego in an average week, so prices vary by time and availability. 11,201 American Airlines reviews by users on momondo have scored the airline at 7.2/10.

Coronado

Chula Vista

Why use momondo?

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?

Yes. momondo enables you to select and highlight flights to San Diego from London with this policy.

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.

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

Price alerts on flights to San Diego from London are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your San Diego trip

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

Start using Trips

Find my bookings

Get notified when prices go down

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

1 adult

Fri 27/2

Fri 6/3

Email me momondo's favourite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States

Airports servicing California

Burbank Bob Hope Airport

Fresno Airterminal Airport

Los Angeles Airport

Long Beach Municipal Airport

Monterey Regional Airport

Santa Barbara Airport

San Luis Obispo County Airport

San Francisco Airport

San Jose Airport

Sacramento Intl Airport

Santa Ana J. Wayne/Orange Cnty Airport

Santa Rosa Sonoma County Airport

Orange County Airport

Yosemite National Park Airport

San Francisco Bay Area Airport

Popular Cities in the United States

Flights to New Yorkfrom £233

Flights to Orlandofrom £247

Flights to Los Angelesfrom £316

Flights to Miamifrom £259

Flights to San Franciscofrom £304

Flights to Bostonfrom £293

Flights to Chicagofrom £333

Flights to Las Vegasfrom £317

Flights to Washington, D.C.from £250

Flights to Atlantafrom £313

Flights to Dallasfrom £356

Flights to Houstonfrom £369

Cheap flights from London to San Diego from £249

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 5/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from London to San Diego

Cheap return flights

Cheap one-way flights

Cheap last-minute flights

Cheap direct flights

Lufthansa flights from London to San Diego

Our best Lufthansa 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

momondo Fare Finder

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 don’t want to visit San Diego in January, then you should wait until February to fly from London, when ticket prices are also cheap, with an average price of £475.

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 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 4 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 17% 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 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?

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

Which 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 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, British Airways 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 and San Diego?

Denver (DEN) was the most common stop: 41% of momondo users choosing one-stop flights on this route connected there.

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

Flights via Houston (IAH) offer the lowest average return price of £417.

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

Flights connecting via Denver (DEN) have the shortest average one-way travel time: 13h 43m.

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

Denver (DEN) has the shortest average stopover time for this route: 1h 23m.

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 12:00, with 100% of daily flights leaving in the afternoon.

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

The number of flights available between London and San Diego is 36 per week as of January 2026. The most frequent departure day is Mon, with 17% of weekly flights leaving 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

Finnair Flights From London to San Diego

American Airlines Flights From London to San Diego

Travelling to a place near San Diego?

Why use momondo?