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Cheap flights from San Diego to London from $309

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Diego to London departing on 7/15. 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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Find the cheapest flights from San Diego to London

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from San Diego to London.
7:09 am - 10:00 amSAN-LHR
18h 51m2 stops
9:30 am - 6:51 pmLHR-SAN
17h 21m2 stops
$613Air Canada
Find Deal
Wed, Apr 23 - Tue, May 6
9:08 pm - 6:20 amSAN-LGW
25h 12m3 stops
8:50 am - 10:09 pmLGW-SAN
21h 19m3 stops
Mon, May 5 - Wed, May 21
7:50 pm - 2:20 pmSAN-LHR
10h 30mnonstop
2:55 pm - 6:00 pmLHR-SAN
11h 05mnonstop
$679British Airways
Find Deal
Mon, Aug 4 - Wed, Aug 20
4:48 pm - 2:25 pmSAN-LHR
13h 37m1 stop
2:55 pm - 6:00 pmLHR-SAN
11h 05mnonstop
$691British Airways
Find Deal
Wed, Apr 30 - Wed, May 7
7:50 pm - 2:20 pmSAN-LHR
10h 30mnonstop
11:30 am - 2:50 pmLHR-SAN
11h 20mnonstop
$711American Airlines
Find Deal
Mon, May 5 - Wed, May 21
7:50 pm - 2:20 pmSAN-LHR
10h 30mnonstop
3:30 pm - 11:59 pmLHR-SAN
16h 29m1 stop
$721Iberia
Find Deal
Mon, May 5 - Wed, May 21
2:41 pm - 6:25 amSAN-LHR
31h 44m1 stop
2:55 pm - 6:00 pmLHR-SAN
11h 05mnonstop
$723Iberia
Find Deal
Sat, Apr 19 - Wed, May 7
8:30 pm - 6:30 amSAN-LHR
26h 00m1 stop
8:25 am - 7:15 pmLHR-SAN
18h 50m1 stop
$783JetBlue
Find Deal
Mon, May 5 - Wed, May 21
8:39 pm - 8:45 pmSAN-LHR
16h 06m1 stop
8:25 am - 7:15 pmLHR-SAN
18h 50m1 stop
$788JetBlue
Find Deal
Wed, May 14 - Wed, May 21
7:50 pm - 2:20 pmSAN-LHR
10h 30mnonstop
11:30 am - 2:50 pmLHR-SAN
11h 20mnonstop
$838American Airlines
Find Deal
Sat, Aug 9 - Tue, Aug 19

United Airlines flights from San Diego to London

Our best United Airlines deals on San Diego to London flight tickets
United Airlines
Apr 19
SAN10:00 pmSan Diego
24h 20m
1 stop
LHR6:20 amLondon Heathrow
May 7
LHR2:05 pmLondon Heathrow
30h 53m
2 stops
SAN12:58 pmSan Diego
United Airlines
Apr 23
SAN10:16 amSan Diego
15h 24m
2 stops
LHR9:40 amLondon Heathrow
May 7
LHR7:25 amLondon Heathrow
16h 00m
1 stop
SAN3:25 pmSan Diego
United Airlines
Apr 15
SAN10:00 amSan Diego
37h 40m
2 stops
LHR7:40 amLondon Heathrow
Apr 25
LHR2:10 pmLondon Heathrow
34h 28m
1 stop
SAN4:38 pmSan Diego

JetBlue flights from San Diego to London

Our best JetBlue deals on San Diego to London flight tickets
JetBlue
May 5
SAN8:30 pmSan Diego
26h 00m
1 stop
LHR6:30 amLondon Heathrow
May 21
LHR8:25 amLondon Heathrow
18h 50m
1 stop
SAN7:15 pmSan Diego
JetBlue
May 14
SAN8:39 pmSan Diego
16h 06m
1 stop
LHR8:45 pmLondon Heathrow
May 21
LHR8:25 amLondon Heathrow
18h 50m
1 stop
SAN7:15 pmSan Diego
JetBlue
Apr 2
SAN9:35 pmSan Diego
15h 10m
1 stop
LHR8:45 pmLondon Heathrow
Apr 16
LHR11:55 amLondon Heathrow
16h 27m
1 stop
SAN8:22 pmSan Diego

See travel insights to London from

How to get the cheapest flight ticket from San Diego to London

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 London?

The cheapest month to fly to London from San Diego is in February. Flight prices, which tend to average around $696, are often lower during this time because this is during the off-season. The month of January is another great option to travel to London, with average flight prices from San Diego averaging around $711.

What is the cheapest day to depart on your flight to London?

The cheapest day to depart from San Diego to London is on a Wednesday. Travelers who choose to depart for London on a Wednesday will often find tickets for as low as $928. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $1,121. These prices are subject to change though, so be sure to set up a Price Alert for flights to London.

What is the cheapest time of day to depart on your flight to London?

Flying to London from San Diego at noon is the least expensive time of day to depart. momondo users have found prices as low as $880 when looking at flights departing at noon. Flights to London are more costly in the afternoon, with an average ticket price of $998. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest San Diego to London flight route?

Fly from San Diego to London Heathrow for the best San Diego - London flight prices

How far in advance should I book a flight to London?

You are more likely to see cheaper flights to London from San Diego when booking 7 weeks ahead of your departure date. In general, you can expect to find flights to London for around $909 when searching 7 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from San Diego for as low as $814 on momondo.

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

There are 4 cabin classes available to choose from on San Diego to London flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

As of March 2025, prices for San Diego to London flights are approximately 1% cheaper when compared to flights at the same time last year.

When to book flights from San Diego to London

Are you open to changing your travel dates? Check out the ideal times to fly from San Diego to London according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap San Diego to London (SAN to LON) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Diego to London

Best Price Found

$309

Fastest flight time

10h 30m

Direct flights

Mon, Tue, Thu, Fri, Sat and Sun

Airports in London

3 airports
The best one-way flight to London from San Diego in the past 72 hours is $309. The best round-trip flight deal from San Diego to London found on momondo in the last 72 hours is $613.
The fastest flight from San Diego to London takes 10h 30m
Direct flights go from San Diego to London on Monday, Tuesday, Thursday, Friday, Saturday and Sunday. Airlines offering direct flights are: Finnair, Aer Lingus and Iberia.
There are 3 airports near London: London Heathrow (LHR), London Stansted (STN), London Gatwick (LGW)

  • How far is San Diego to London by plane?

    London is 5478.3 mi away from San Diego. In terms of flight time, this usually takes a little over 10h 30m.

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

    Prices for flights from San Diego Airport to London refresh daily.

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

  • How old do you have to be to fly from San Diego Airport to London?

    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 San Diego Airport to London.

  • What documentation or ID do you need to fly to London?

    The required travel and health documents for your London trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from San Diego to London?

  • What is the most popular airline from San Diego to London?


Best airlines flying from San Diego to London

Compare and see reviews for airlines that fly from San Diego to London with momondo
Airline
Rating
Free Cancellation
Price
KLMPriceFrom $580Free CancellationRating
7.8
1,321 reviews
Search KLM flights
LufthansaPriceFrom $590Free CancellationRating
6.7
6,961 reviews
Search Lufthansa flights
FinnairPriceFrom $595Free CancellationRating
7.6
1,267 reviews
Search Finnair flights
JetBluePriceFrom $597Free CancellationRating
7.3
2,924 reviews
Search JetBlue flights
United AirlinesPriceFrom $602Free CancellationRating
7.4
8,614 reviews
Search United Airlines flights
IberiaPriceFrom $603Free CancellationRating
7.0
2,653 reviews
Search Iberia flights
Virgin AtlanticPriceFrom $641Free CancellationRating
7.4
636 reviews
Search Virgin Atlantic flights
American AirlinesPriceFrom $647Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
British AirwaysPriceFrom $650Free CancellationRating
6.6
6,713 reviews
Search British Airways flights
DeltaPriceFrom $678Free CancellationRating
8.0
7,899 reviews
Search Delta flights
  • Alaska Airlines Flights From San Diego to London

    Across 13 Alaska Airlines flights from San Diego to London this week, the average price was $951, with the best Alaska Airlines deals starting from $828 round-trip. 9,818 users have rated Alaska Airlines on momondo, with an average score of 8.0/10.

  • Finnair Flights From San Diego to London

    The best Finnair deal for San Diego to London flight tickets found on momondo in the last 72 hours was $595, round-trip. It should be noted that an average Finnair flight deal for this route in this time was higher, at $692 round-trip. Finnair operates 1 flight out of San Diego into London in an average week, so prices vary by time and availability. 1,267 Finnair reviews by users on momondo have scored the airline at 7.6/10.


Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Hounslow
Gatwick
Croydon
Luton
Guildford
Hayes
Slough
Dartford
Stansted
Ilford
Dover
Canterbury
Colchester
Milton Keynes
Horley
Wembley
Chelmsford
Eastbourne
Southend-on-Sea
Hook

Why use momondo?

Why should I use momondo to find a flight deal from San Diego to London?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from San Diego to London. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from San Diego to London with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for San Diego to London flights to just show those with flexible booking policies.

How can momondo help me find flights from San Diego to London?

Once all potential San Diego to London 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 San Diego to London right now. Can momondo alert me if prices change?

If you are not ready to book a flight from San Diego to London now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to London and let you know when they change.


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1 adult
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Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London