£177 Find Cheap Flights from San Diego to the United Kingdom

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 23/3. 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£469
Manchester
Manchester2 stops£461
Edinburgh
Edinburgh2 stops£445
Leeds
Leeds2 stops£742
London
London2 stops£469
Manchester
Manchester2 stops£461
Edinburgh
Edinburgh2 stops£445
Leeds
Leeds2 stops£742

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

Fri, 27 Feb - Fri, 6 Mar
Delta Logo
06:15 - 15:40
SAN
-
INV
25h 25m
2 stops
Delta Logo
13:15 - 12:05
INV
-
SAN
30h 50m
1 stop
£377Delta
Fri, 27 Feb - Fri, 6 Mar
British Airways Logo
19:42 - 19:15
SAN
-
INV
39h 33m
2 stops
British Airways Logo
20:30 - 22:30
INV
-
SAN
34h 00m
2 stops
£384British Airways
Tue, 10 Feb - Tue, 17 Feb
Multiple Airlines Logo
07:51 - 09:40
SAN
-
INV
17h 49m
2 stops
Multiple Airlines Logo
12:45 - 08:39
INV
-
SAN
27h 54m
2 stops
£419Multiple Airlines
Tue, 10 Feb - Fri, 6 Mar
American Airlines Logo
22:45 - 10:55
SAN
-
INV
28h 10m
2 stops
American Airlines Logo
11:25 - 23:59
INV
-
SAN
20h 34m
2 stops
£420American Airlines
Tue, 10 Feb - Thu, 19 Feb
American Airlines Logo
07:10 - 09:40
SAN
-
INV
18h 30m
3 stops
American Airlines Logo
11:45 - 23:59
INV
-
SAN
20h 14m
2 stops
£422American Airlines
Mon, 16 Mar - Mon, 23 Mar
KLM Logo
22:25 - 08:45
SAN
-
EDI
27h 20m
1 stop
KLM Logo
13:30 - 13:05
EDI
-
SAN
30h 35m
1 stop
£456KLM
Sun, 1 Mar - Sun, 8 Mar
United Airlines Logo
22:15 - 07:55
SAN
-
EDI
25h 40m
2 stops
United Airlines Logo
11:40 - 09:47
EDI
-
SAN
29h 07m
2 stops
£457United Airlines
Sat, 28 Feb - Sat, 7 Mar
KLM Logo
14:00 - 19:55
SAN
-
EDI
21h 55m
1 stop
KLM Logo
05:45 - 12:05
EDI
-
SAN
14h 20m
1 stop
£459KLM
Thu, 26 Feb - Mon, 2 Mar
United Airlines Logo
22:15 - 10:20
SAN
-
MAN
28h 05m
2 stops
United Airlines Logo
06:10 - 22:44
MAN
-
SAN
24h 34m
2 stops
£469United Airlines
Mon, 23 Feb - Mon, 9 Mar
Multiple Airlines Logo
12:45 - 11:50
SAN
-
LHR
15h 05m
1 stop
Multiple Airlines Logo
16:40 - 16:45
LHR
-
SAN
31h 05m
1 stop
£469Multiple 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 72 hours was to London, at £461 return. The most popular route is from San Diego (SAN) to London Heathrow Airport (LHR), and the cheapest round-trip airline ticket found on this route in the last 72 hours was £461.

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.

No, with an average price for the route of £574, prices are generally cheapest when you fly direct.

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 October, when tickets cost £504 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of return tickets is £992 and £804 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 Monday 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 11 weeks before departure.

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

Low seasonJanuary
Cheapest flight£175
Most popular time to fly and prices are also 13% lower on average.
Flight from San Diego to London Gatwick Airport

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.

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

    The cheapest time of day to fly to the United Kingdom is generally in the evening, when retur flights cost £671 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 £687.

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 £366 one-way - £569 round-trip

Reviews of the top airlines 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.
7.2
American AirlinesOverall score based on 11214 reviews
7.5Boarding
6.9Entertainment
6.4Food
7.2Comfort
8.0Crew
Airline reviews

It would be nice to have some low carb options in the snacks.

10.0 ExcellentLori, Jan 2026
SMF - PHX
Read more American Airlines reviews

It would be nice to have some low carb options in the snacks.

The entertainment options were at best, fair. It was exactly the same as my outbound flight. It would have been more entertaining if there were some series from Apple TV, HBO, Showtime or other carriers for me to catch up with.

The flight was on time and arrived early. The crew were friendly and helpful.

While I didn’t watch much tv I would have liked a few more options of TV series from Apple TV or hbo max ..

Overall experience was great. Flights were almost on time in departing and we arrived at our destination as scheduled. No issues with amenities or flight crew. Everything went well as as expected. Will fly again with American Airlines in the future!

The flight was very smooth and the meal in business class was great.

I requested a low sodium meal. Reason being, I take medicine for high blood pressure and I wear compression socks on long flights to help with leg swelling. Having less sodium in meals really helps me feel better on long flights. I received my initial low sodium meal after takeoff. Just before landing, the crew came through with the meal cart and offered me what was being served. I said no thank you and then noticed my low sodium meal in the meal cart, with my name and seat assignment on it. I motioned to the crew member, but he grabbed the meal cart and proceeded to move to the rear of the aircraft. He didn’t see me or other passengers who had attempted to get this attention. He was more concerned about completing meal service since we were due to land in under 45 minutes. I pressed the call light five times from my seat to receive help, but no crew member responded to me. So, I didn’t receive a second meal, one that I requested (the low sodium option). This led me to have a migraine from only eating one meal on an 11-hour flight. This is why I’m not a fan of flying US-based airlines overseas. The crew members continue to show the absolute worst customer service experience. I would not recommend flying American for overseas flights.

Not great. Booked Extra seats and got nothing extra at all. It’s basically a big budget airline.

Horrible. Both legs of my flight were delayed more than 6 hours. No compensation, no screens on the plane, and the plane was not clean.

The flight was smooth, the pilot kept us informed about delays and we arrived more of less on time

The issue was not with BA it was with the link yoiu sent fopr booking the flight

Loved the boarding option from Business class lounge, experience on flight was excellent, plenty of good food choices

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

Check in was was and the agent was very friendly and helpful The lounge was nice...boarding was straight from the lounge Everything worked at our seats, and video entertainment was good ..food was mediocre

Airlines have to stop assuming passengers bring entertainment. Provide it like you used to in business class and above!! N

Need to offer Better food from LAX to London Service from London to Delhi very delayed after take off.

Great crew and food and beverage. Seating tight but not the airline's fault. Will definitely fly BA in future!

Crying baby the ENTIRE flight. Not your fault, but I paid 2700 for a premium economy ticket and it wasn't worth it. should have just stuck with coach. flight attendants very mediocre - minimal effort. Plane didn't seem very clean. Didn't have any cleansing wipes - most airlines give you this when you board. Flat screen scrolling didn't work. Toiletry case a joke - why bother at all?

Enjoyable flight, helpful crew everything was organized to accommodate passengers.

I was transferred to an American Airlines flight. The boarding was late and unorganized. The seating was extremely tight and uncomfortable. Will not use AA again.

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

Information on your arrival and departure airports