£242 Find Cheap Flights from San Diego to the United Kingdom – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Diego to the United Kingdom departing on 27/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap Flights from San Diego to the United Kingdom

Cheapest return prices found by our users on KAYAK in the last 72 hours
London
London2 stops£718
Manchester
Manchester2 stops£609
Edinburgh
Edinburgh1 stop£648
Bristol
Bristol2 stops£808
Liverpool
Liverpool2 stops£844
Leeds
Leeds1 stop£771
Cardiff
Cardiff2 stops£838
London
London2 stops£718
Manchester
Manchester2 stops£609
Edinburgh
Edinburgh1 stop£648
Bristol
Bristol2 stops£808
Liverpool
Liverpool2 stops£844
Leeds
Leeds1 stop£771
Cardiff
Cardiff2 stops£838

Book Cheap San Diego to the United Kingdom Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from San Diego to the United Kingdom that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from San Diego to the United Kingdom

Sun, 20 Sep - Mon, 5 Oct
British Airways Logo
19:40 - 21:35
SAN
-
INV
17h 55m
1 stop
British Airways Logo
15:45 - 14:55
INV
-
SAN
31h 10m
1 stop
£599British Airways
Wed, 14 Oct - Wed, 21 Oct
British Airways Logo
16:45 - 14:55
SAN
-
INV
14h 10m
1 stop
British Airways Logo
10:35 - 17:50
INV
-
SAN
15h 15m
1 stop
£609British Airways
Mon, 7 Dec - Fri, 11 Dec
United Airlines Logo
22:30 - 08:40
SAN
-
MAN
50h 10m
2 stops
United Airlines Logo
06:10 - 21:57
MAN
-
SAN
23h 47m
2 stops
£609United Airlines
Mon, 7 Dec - Fri, 11 Dec
United Airlines Logo
22:30 - 08:40
SAN
-
MAN
50h 10m
2 stops
United Airlines Logo
06:10 - 20:45
MAN
-
SAN
22h 35m
3 stops
£609United Airlines
Sun, 20 Sep - Mon, 5 Oct
British Airways Logo
19:15 - 21:35
SAN
-
INV
42h 20m
2 stops
British Airways Logo
15:45 - 14:55
INV
-
SAN
31h 10m
1 stop
£618British Airways
Wed, 14 Oct - Wed, 21 Oct
American Airlines Logo
06:20 - 09:35
SAN
-
INV
19h 15m
2 stops
American Airlines Logo
07:35 - 14:55
INV
-
SAN
15h 20m
1 stop
£622American Airlines
Wed, 14 Oct - Wed, 21 Oct
American Airlines Logo
08:00 - 09:35
SAN
-
INV
17h 35m
2 stops
American Airlines Logo
10:35 - 17:50
INV
-
SAN
15h 15m
1 stop
£623American Airlines
Wed, 14 Oct - Wed, 21 Oct
American Airlines Logo
06:20 - 09:35
SAN
-
INV
19h 15m
2 stops
American Airlines Logo
07:35 - 14:55
INV
-
SAN
15h 20m
1 stop
£623American Airlines
Wed, 9 Sep - Wed, 16 Sep
British Airways Logo
16:45 - 21:30
SAN
-
INV
20h 45m
1 stop
British Airways Logo
15:40 - 14:55
INV
-
SAN
31h 15m
1 stop
£628British Airways
Wed, 14 Oct - Wed, 21 Oct
American Airlines Logo
13:12 - 14:55
SAN
-
INV
17h 43m
2 stops
American Airlines Logo
07:35 - 19:02
INV
-
SAN
19h 27m
2 stops
£630American Airlines
Booking Insights

KAYAK's insights & trends for San Diego to the United Kingdom flights

Get data-powered insights and trends into flights from San Diego to the United Kingdom to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest San Diego to the United Kingdom flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to the United Kingdom from San Diego found in the last 5 days was to London, at £664 return. The most popular route is from San Diego (SAN) to London Heathrow Airport (LHR), and the cheapest return airline ticket found on this route in the last 5 days was £664.

What is the cheapest time of day to fly to the United Kingdom?

The average price for all round-trip flights from San Diego to the United Kingdom depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to the United Kingdom is generally in the evening, when retur flights cost £698 on average. Morning departures are around 100% cheaper than evening flights, on average. The most expensive time of day to fly to the United Kingdom is generally at night, which is peak travel time and where the average cost of a ticket is £739.

Can I save money by flying with a stopover from San Diego to the United Kingdom?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a stopover may cost you more time, but you can also save money on the route, with a 2 stops stopover the cheapest option at £700 on average.

What is the cheapest month to fly from San Diego to the United Kingdom?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Diego to the United Kingdom, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from San Diego to the United Kingdom is February, when tickets cost £569 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of return tickets is £1,098 and £980 respectively.

What’s the cheapest day of the week to fly from San Diego to United Kingdom?

The average price of all round-trip flights from San Diego to the United Kingdom clicked on KAYAK for each day over the last 12 months.

When flying from San Diego to United Kingdom, you should consider leaving on a Sunday and avoid Fridays if you are looking for the best rates. For your return to San Diego, you’ll find the best rates on Tuesdays and the most expensive ones on Saturdays.

How far in advance should I book a flight from San Diego to the United Kingdom?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San Diego to the United Kingdom, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below-average price on a flight from San Diego to the United Kingdom, you should book around 2 weeks before departure, which saves you about 23% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.

Good to know - Cheap tickets from San Diego to the United Kingdom

Low season

February

Cheapest flight

£242
Best time to beat the crowds (19% less expensive on average)
Most popular time to fly and prices are also 14% lower on average.
Flight from San Diego to Edinburgh

FAQs - booking United Kingdom flights

  • How does KAYAK find such low prices on flights from San Diego to the United Kingdom?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Diego to the United Kingdom.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Diego to the United Kingdom?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from San Diego to the United Kingdom is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Diego to the United Kingdom?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from San Diego to the United Kingdom with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Diego to the United Kingdom?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from San Diego to the United Kingdom up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding a cheap flight from San Diego to the United Kingdom

  • Looking for a cheap flight from San Diego to the United Kingdom? 25% of our users found tickets from San Diego to the United Kingdom for the following prices or less: London £473 one-way - £694 round-trip

Reviews of the top airline flying from San Diego to the United Kingdom

 
Need help choosing which airline to fly with from San Diego to the United Kingdom? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
6.7
British AirwaysOverall score based on 8127 reviews
6.8Comfort
7.0Boarding
7.7Crew
6.4Food
6.5Entertainment
Airline reviews

I was booked in Premium Economy and never given a chance to choose to purchase my own seat. Ended up with a middle seat, which was very difficult for me. The airline then left my bag in London so when I arrived in Instanbul it was not there. They delivered it to me the next day but many valuable items had been stolen. I've been flying with BA for years and this was the first time I had such a bizarre and bad experience with them.

2.0 MediocreSana, Jun 2026
SAN - LHR
Read more British Airways reviews

I was booked in Premium Economy and never given a chance to choose to purchase my own seat. Ended up with a middle seat, which was very difficult for me. The airline then left my bag in London so when I arrived in Instanbul it was not there. They delivered it to me the next day but many valuable items had been stolen. I've been flying with BA for years and this was the first time I had such a bizarre and bad experience with them.

Canceled flight late London to Florence. Help at airport very poor. Treated poorly. Had to sleep in the airport. Lost bags- still do not have them. Horrible. I should be reimbursed!

Boarding was orderly, pilot and flight attendants were nice, entertainment options were good, and low sodium meals were quite tasty.

Check-in in SAN was long. ORD was good. Flight delayed On board crew was ok. No warmth or personality. LHrR barely made connection

Flying with BA is always a good experience—even in economy class. It is better if in business and first class. Timely, breeze through security and timely connections

Awful it always is unfortunately is the only way to fly direct to london

I’ll fly with any other airline. Besides all the fees and not being able to change a flight even to a later flight without paying £150 charge. Or that the last flight the WiFi didn’t work, the food was so bad, and ran out of options. Seat didn’t recline. And the headset jack didn’t work. This isn’t my first flight with them, and on every flight there is always something wrong that makes the long 10 hours feel like an eternity. Never flying them again.

Horrible. Never again. Wouldn’t let us use the lounge. We had to pay for another lounge to have access.

Lost our bags in Heathrow, We didn’t receive bags in Mallorca for 3 days, out of a 7 day cycling vacation. Really inconvenient and disappointing!

Busy flight and less room to rest on overnight flight.

Everything you need to know for your flight from San Diego to the United Kingdom

Information on your arrival and departure airports