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Cheap flights from London to San Diego from $289

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 5/10. 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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Find the cheapest flights from London to San Diego

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from London to San Diego.
9:30 am - 7:35 pmLHR-SAN
18h 05m1 stop
8:10 am - 6:30 amSAN-LHR
14h 20m1 stop
$554Air Canada
Find Deal
Mon, Sep 8 - Sun, Sep 21
7:25 am - 3:25 pmLHR-SAN
16h 00m1 stop
10:00 am - 7:25 amSAN-LHR
13h 25m1 stop
$565Lufthansa
Find Deal
Tue, May 13 - Tue, May 20
2:55 pm - 6:00 pmLHR-SAN
11h 05mnonstop
7:50 pm - 2:20 pmSAN-LHR
10h 30mnonstop
$624British Airways
Find Deal
Thu, Apr 24 - Thu, May 1
2:55 pm - 6:00 pmLHR-SAN
11h 05mnonstop
10:19 am - 7:20 amSAN-LHR
13h 01m1 stop
$625British Airways
Find Deal
Wed, Apr 30 - Mon, May 5
6:30 am - 4:52 pmLHR-SAN
18h 22m2 stops
1:30 pm - 1:30 pmSAN-LHR
16h 00m2 stops
$649Delta
Find Deal
Mon, Apr 21 - Mon, May 5
11:30 am - 2:50 pmLHR-SAN
11h 20mnonstop
12:57 pm - 12:50 pmSAN-LHR
15h 53m1 stop
$650American Airlines
Find Deal
Mon, Apr 21 - Mon, May 5
11:30 am - 2:50 pmLHR-SAN
11h 20mnonstop
4:43 pm - 2:25 pmSAN-LHR
13h 42m1 stop
$652American Airlines
Find Deal
Mon, Apr 21 - Mon, May 5
12:25 pm - 8:37 pmLHR-SAN
16h 12m1 stop
10:30 pm - 6:45 amSAN-LHR
24h 15m1 stop
$665Delta
Find Deal
Mon, May 12 - Sat, May 17
12:30 pm - 10:07 pmLHR-SAN
17h 37m1 stop
7:50 pm - 2:20 pmSAN-LHR
10h 30mnonstop
$666Iberia
Find Deal
Mon, Apr 21 - Mon, May 5
2:55 pm - 6:00 pmLHR-SAN
11h 05mnonstop
10:19 am - 7:20 amSAN-LHR
13h 01m1 stop
$697Iberia
Find Deal
Sat, May 10 - Sat, May 17

Air Canada flights from London to San Diego

Our best Air Canada deals on London to San Diego flight tickets
Air Canada
Sep 8
LHR9:30 amLondon Heathrow
18h 05m
1 stop
SAN7:35 pmSan Diego
Sep 21
SAN8:10 amSan Diego
14h 20m
1 stop
LHR6:30 amLondon Heathrow
Air Canada
May 13
LHR8:45 amLondon Heathrow
19h 00m
2 stops
SAN7:45 pmSan Diego
May 20
SAN8:10 amSan Diego
14h 20m
1 stop
LHR6:30 amLondon Heathrow
Air Canada
May 13
LHR8:45 amLondon Heathrow
19h 00m
2 stops
SAN7:45 pmSan Diego
May 20
SAN8:10 amSan Diego
19h 40m
2 stops
LHR11:50 amLondon Heathrow

United Airlines flights from London to San Diego

Our best United Airlines deals on London to San Diego flight tickets
United Airlines
May 6
LHR7:25 amLondon Heathrow
16h 00m
1 stop
SAN3:25 pmSan Diego
May 20
SAN8:10 amSan Diego
14h 20m
1 stop
LHR6:30 amLondon Heathrow
United Airlines
May 10
LHR7:25 amLondon Heathrow
16h 00m
1 stop
SAN3:25 pmSan Diego
May 17
SAN9:25 pmSan Diego
15h 15m
1 stop
LHR8:40 pmLondon Heathrow
United Airlines
Apr 21
LHR7:25 amLondon Heathrow
23h 08m
2 stops
SAN10:33 pmSan Diego
May 5
SAN12:13 pmSan Diego
15h 22m
1 stop
LHR11:35 amLondon Heathrow

See travel insights to San Diego from

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 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 January is also very affordable. Most momondo users find prices during this month for around $662.

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 $701. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $808. 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 $728. Flights in the morning are often more expensive with an average ticket price of $770.

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 26 weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around $769 when searching 26 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 $670 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.

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

As of March 2025, prices for London 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 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

$289

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 in the past 72 hours is $289. The best round-trip flight deal from London to San Diego found on momondo in the last 72 hours is $554.
The fastest flight from London to San Diego takes 11h 05m
Direct flights go from London to San Diego on Monday, Tuesday, Thursday, Friday, Saturday and Sunday. Airlines offering direct flights are: Finnair, Aer Lingus and Iberia.
There is 1 airport near San Diego: San Diego (SAN)

  • 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 05m, 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?

  • 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?

  • 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
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $523Free CancellationRating
7.4
8,603 reviews
Search United Airlines flights
British AirwaysPriceFrom $553Free CancellationRating
6.6
6,712 reviews
Search British Airways flights
IberiaPriceFrom $576Free CancellationRating
7.0
2,651 reviews
Search Iberia flights
American AirlinesPriceFrom $579Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
  • American Airlines Flights From London to San Diego

    American Airlines operates around 4 flights from London to San Diego every week. The average price of these flights found in the last 72 hours has been $748, but momondo users have found American Airlines deals from London to San Diego from as low as $579 round-trip. American Airlines has been scored 7.2/10 in 10,000 reviews.

  • Iberia Flights From London to San Diego

    Another popular option for London to San Diego flights is Iberia (7.0/10, 2,651 ratings). Iberia flies from London to San Diego around 4 times per week, with deals starting from $576 round-trip and rising to an average price of around $766.


Traveling to a place near San Diego?

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


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