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Cheap flights from London Heathrow Airport to San Diego from $365

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 Heathrow Airport to San Diego departing on 9/30. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from London Heathrow Airport to San Diego

Cheap round-trip flights

Austrian Airlines Logo
12:15 pm - 8:40 pmLHR-SAN
16h 25m1 stop
Austrian Airlines Logo
7:45 am - 6:55 amSAN-LHR
15h 10m1 stop
$497Austrian Airlines
Find Deal
Fri, Jul 4 - Mon, Jul 7
British Airways Logo
11:30 am - 2:50 pmLHR-SAN
11h 20mnonstop
British Airways Logo
4:40 pm - 11:25 amSAN-LHR
10h 45mnonstop
$593British Airways
Find Deal
Wed, Sep 24 - Thu, Oct 2
Virgin Atlantic Logo
8:55 pm - 12:00 pmLHR-SAN
23h 05m1 stop
Virgin Atlantic Logo
2:00 pm - 1:30 pmSAN-LHR
15h 30m1 stop
$600Virgin Atlantic
Find Deal
Mon, Sep 1 - Mon, Sep 15
Lufthansa Logo
6:35 am - 4:45 pmLHR-SAN
17h 10m1 stop
Lufthansa Logo
5:35 pm - 7:35 pmSAN-LHR
18h 00m1 stop
$622Lufthansa
Find Deal
Thu, Oct 30 - Tue, Nov 4
Virgin Atlantic Logo
9:20 am - 5:28 pmLHR-SAN
16h 08m1 stop
Virgin Atlantic Logo
10:10 pm - 8:00 pmSAN-LHR
13h 50m1 stop
$626Virgin Atlantic
Find Deal
Wed, Sep 24 - Wed, Oct 1
Lufthansa Logo
6:55 am - 3:25 pmLHR-SAN
16h 30m1 stop
Lufthansa Logo
10:38 am - 7:25 amSAN-LHR
12h 47m1 stop
$627Lufthansa
Find Deal
Wed, Sep 3 - Wed, Sep 10
American Airlines Logo
11:30 am - 2:50 pmLHR-SAN
11h 20mnonstop
American Airlines Logo
3:01 pm - 12:30 pmSAN-LHR
13h 29m1 stop
$632American Airlines
Find Deal
Mon, Sep 1 - Tue, Sep 9
United Airlines Logo
7:40 am - 3:45 pmLHR-SAN
16h 05m1 stop
United Airlines Logo
6:47 pm - 9:20 pmSAN-LHR
18h 33m2 stops
$648United Airlines
Find Deal
Wed, Nov 19 - Fri, Nov 28
United Airlines Logo
7:40 am - 6:25 pmLHR-SAN
18h 45m2 stops
United Airlines Logo
6:47 pm - 8:35 pmSAN-LHR
17h 48m2 stops
$653United Airlines
Find Deal
Wed, Nov 19 - Fri, Nov 28
American Airlines Logo
11:30 am - 2:50 pmLHR-SAN
11h 20mnonstop
American Airlines Logo
3:01 pm - 12:30 pmSAN-LHR
13h 29m1 stop
$656American Airlines
Find Deal
Wed, Sep 3 - Tue, Sep 9

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
Jul 4
LHR12:15 pmLondon Heathrow
16h 25m
1 stop
SAN8:40 pmSan Diego
Jul 7
SAN7:45 amSan Diego
15h 10m
1 stop
LHR6:55 amLondon Heathrow
Austrian Airlines
Aug 24
LHR1:05 pmLondon Heathrow
14h 41m
1 stop
SAN7:46 pmSan Diego
Sep 11
SAN10:54 amSan Diego
16h 16m
1 stop
LHR11:10 amLondon Heathrow

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
Sep 24
LHR11:30 amLondon Heathrow
11h 20m
SAN2:50 pmSan Diego
Oct 2
SAN4:40 pmSan Diego
10h 45m
LHR11:25 amLondon Heathrow
British Airways
Sep 24
LHR11:30 amLondon Heathrow
11h 20m
SAN2:50 pmSan Diego
Oct 2
SAN4:40 pmSan Diego
10h 45m
LHR11:25 amLondon Heathrow
British Airways
Aug 27
LHR11:30 amLondon Heathrow
11h 20m
SAN2:50 pmSan Diego
Sep 9
SAN4:40 pmSan Diego
12h 10m
1 stop
LHR12:50 pmLondon Heathrow

See travel insights to San Diego from

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 $658.

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 $699. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $844. 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 afternoon when flights can be purchased for as low as $727. Flights at noon are often more expensive with an average ticket price of $799.

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 13 weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around $766 when searching 13 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 $665 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?

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

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

As of June 2025, prices for London Heathrow Airport to San Diego flights are approximately 19% 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

$365

Fastest flight time

11h 05m

Direct flights

Mon, Tue, Thu, Fri, Sat and Sun

Airports in San Diego

1 airport
The best one-way flight to San Diego from London Heathrow Airport in the past 72 hours is $365. The best round-trip flight deal from London Heathrow Airport to San Diego found on momondo in the last 72 hours is $497.
The fastest flight from London Heathrow Airport to San Diego takes 11h 05m
Direct flights go from London Heathrow Airport to San Diego on Monday, Tuesday, Thursday, Friday, Saturday and Sunday. Airlines offering direct flights are: Finnair, American Airlines and British Airways.
There is 1 airport near San Diego: San Diego (SAN)

  • 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 05m.

  • 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?

  • 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?

  • 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
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $523Free CancellationRating
7.4
8,790 reviews
Search United Airlines flights
British AirwaysPriceFrom $539Free CancellationRating
6.6
7,008 reviews
Search British Airways flights
American AirlinesPriceFrom $563Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
IberiaPriceFrom $576Free CancellationRating
7.0
2,776 reviews
Search Iberia 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 13 flights/week on average for this route. A good American Airlines flight deal for London Heathrow Airport to San Diego starts from $563 round-trip, up to an average price of $720. Our users have rated American Airlines at 7.2/10.

  • Iberia Flights From London Heathrow Airport to San Diego

    Across 2,776 Iberia reviews on momondo, the average score is 7.0/10. Iberia flies from London Heathrow Airport to San Diego about 2 times each week, with ticket deals ranging from $576 to $780. Price data is based on momondo searches in the last 72 hours.


Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
Coronado
Chula Vista
El Cajon
Julian
National City
La Mesa
Imperial Beach
San Ysidro
Poway
Borrego Springs
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?

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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1 adult
Tue 6/17
Tue 6/24

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