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 8/27. 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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0 bags

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Cheap round-trip flights

 Logo
2:00 pm - 8:29 pmLGW-SAN
38h 29m1 stop
 Logo
8:48 am - 10:00 amSAN-LGW
17h 12m1 stop
Wed, Sep 10 - Wed, Oct 8
United Airlines Logo
3:20 pm - 8:52 pmLHR-SAN
36h 32m1 stop
United Airlines Logo
10:18 pm - 8:35 pmSAN-LHR
14h 17m1 stop
$574United Airlines
Find Deal
Sat, Nov 1 - Sun, Nov 2
United Airlines Logo
10:05 am - 11:21 amLHR-SAN
32h 16m2 stops
United Airlines Logo
10:18 pm - 8:35 pmSAN-LHR
14h 17m1 stop
$579United Airlines
Find Deal
Sat, Nov 1 - Sun, Nov 2
British Airways Logo
11:30 am - 2:50 pmLHR-SAN
11h 20mnonstop
British Airways Logo
11:30 am - 9:00 amSAN-LHR
13h 30m1 stop
$585British Airways
Find Deal
Wed, Sep 10 - Wed, Sep 17
British Airways Logo
11:30 am - 2:50 pmLHR-SAN
11h 20mnonstop
British Airways Logo
1:17 pm - 11:05 amSAN-LHR
13h 48m1 stop
$586British Airways
Find Deal
Wed, Sep 10 - Thu, Sep 18
Lufthansa Logo
8:25 pm - 3:25 pmLHR-SAN
27h 00m1 stop
Lufthansa Logo
5:15 pm - 10:40 pmSAN-LHR
21h 25m1 stop
$590Lufthansa
Find Deal
Mon, Sep 1 - Sun, Sep 14
Lufthansa Logo
8:25 pm - 3:25 pmLHR-SAN
27h 00m1 stop
Lufthansa Logo
5:15 pm - 10:40 pmSAN-LHR
21h 25m1 stop
$596Lufthansa
Find Deal
Mon, Sep 1 - Sun, Sep 14
American Airlines Logo
3:05 pm - 5:35 pmLGW-SAN
34h 30m2 stops
American Airlines Logo
10:45 pm - 8:10 amSAN-LGW
49h 25m2 stops
$687American Airlines
Find Deal
Mon, Aug 18 - Mon, Sep 1
Delta Logo
7:45 am - 10:51 amLCY-SAN
35h 06m2 stops
Delta Logo
6:15 am - 8:50 amSAN-LCY
42h 35m2 stops
$748Delta
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Wed, Nov 5 - Sun, Nov 9
Delta Logo
10:00 am - 12:05 pmLCY-SAN
34h 05m1 stop
Delta Logo
6:15 am - 7:15 amSAN-LCY
41h 00m2 stops
$784Delta
Find Deal
Wed, Nov 5 - Sun, Nov 9

Icelandair flights from London to San Diego

Our best Icelandair deals on London to San Diego flight tickets
Icelandair
Oct 16
LGW12:10 pmLondon Gatwick
32h 32m
1 stop
SAN12:42 pmSan Diego
Oct 24
SAN11:45 amSan Diego
13h 50m
1 stop
LGW9:35 amLondon Gatwick
Icelandair
Sep 24
LGW12:10 pmLondon Gatwick
28h 50m
2 stops
SAN9:00 amSan Diego
Oct 2
SAN8:15 pmSan Diego
29h 20m
1 stop
LGW9:35 amLondon Gatwick
Icelandair
Oct 16
LGW12:10 pmLondon Gatwick
32h 32m
1 stop
SAN12:42 pmSan Diego
Oct 24
SAN11:45 amSan Diego
13h 50m
1 stop
LGW9:35 amLondon Gatwick

British Airways flights from London to San Diego

Our best British Airways deals on London to San Diego flight tickets
British Airways
Sep 10
LHR11:30 amLondon Heathrow
11h 20m
SAN2:50 pmSan Diego
Sep 17
SAN11:30 amSan Diego
13h 30m
1 stop
LHR9:00 amLondon Heathrow
British Airways
Sep 10
LHR11:30 amLondon Heathrow
11h 20m
SAN2:50 pmSan Diego
Sep 18
SAN1:17 pmSan Diego
13h 48m
1 stop
LHR11:05 amLondon Heathrow
British Airways
Sep 24
LHR10:30 amLondon Heathrow
15h 33m
1 stop
SAN6:03 pmSan Diego
Oct 1
SAN7:50 pmSan Diego
10h 30m
LHR2:20 pmLondon 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 March, 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 Wednesday. Travelers who choose to depart for San Diego on a Wednesday will often find tickets for as low as $703. 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 $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 $764 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 $660 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 5% 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 July 2025, prices for London to San Diego flights are approximately 0% 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

Every day

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 $484.
The fastest flight from London to San Diego takes 11h 05m
Direct flights go from London to San Diego every day.
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 $533Free CancellationRating
7.4
8,846 reviews
Search United Airlines flights
British AirwaysPriceFrom $569Free CancellationRating
6.6
7,109 reviews
Search British Airways flights
American AirlinesPriceFrom $579Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
IberiaPriceFrom $599Free CancellationRating
7.0
2,826 reviews
Search Iberia flights
  • American Airlines Flights From London to San Diego

    American Airlines operates around 13 flights from London to San Diego every week. The average price of these flights found in the last 72 hours has been $780, 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, 2,828 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 $780.


Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
Coronado
El Cajon
Chula Vista
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?

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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1 adult
Tue 7/15
Tue 7/22

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