£183 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 25/2. 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

KAYAK searches hundreds of travel sites at once for deals on flights to the United Kingdom

Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

Cheap Flights from San Diego to the United Kingdom

Cheapest return prices found by our users on KAYAK in the last 72 hours
London
London1 stop£408
Manchester
Manchester1 stop£430
Edinburgh
Edinburgh1 stop£502
Bristol
Bristol1 stop£692
Liverpool
Liverpool2 stops£744
London
London1 stop£408
Manchester
Manchester1 stop£430
Edinburgh
Edinburgh1 stop£502
Bristol
Bristol1 stop£692
Liverpool
Liverpool2 stops£744

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

Mon, 6 Oct - Tue, 14 Oct
KLM Logo
12:00 - 11:10SAN-LHR
15h 10m1 stop
KLM Logo
06:30 - 12:00LHR-SAN
13h 30m1 stop
£408KLM
Find Deal
Wed, 12 Nov - Thu, 20 Nov
British Airways Logo
11:41 - 08:15SAN-LHR
12h 34m1 stop
British Airways Logo
12:50 - 16:10LHR-SAN
11h 20mdirect
£409British Airways
Find Deal
Wed, 12 Nov - Mon, 17 Nov
United Airlines Logo
08:30 - 06:40SAN-LHR
14h 10m1 stop
United Airlines Logo
16:40 - 15:45LHR-SAN
31h 05m1 stop
£410United Airlines
Find Deal
Tue, 6 Jan - Mon, 2 Feb
United Airlines Logo
18:00 - 20:35SAN-LHR
18h 35m2 stops
United Airlines Logo
13:50 - 23:42LHR-SAN
41h 52m2 stops
£411United Airlines
Find Deal
Tue, 4 Nov - Wed, 26 Nov
Air Canada Logo
12:45 - 07:10SAN-LHR
34h 25m2 stops
Air Canada Logo
14:30 - 12:03LHR-SAN
29h 33m1 stop
£411Air Canada
Find Deal
Mon, 6 Oct - Wed, 22 Oct
American Airlines Logo
16:40 - 11:25SAN-LHR
10h 45mdirect
American Airlines Logo
11:30 - 14:50LHR-SAN
11h 20mdirect
£412American Airlines
Find Deal
Wed, 1 Oct - Wed, 15 Oct
Air Canada Logo
08:10 - 06:30SAN-LHR
14h 20m1 stop
Air Canada Logo
14:05 - 00:15LHR-SAN
18h 10m2 stops
£414Air Canada
Find Deal
Mon, 6 Oct - Wed, 15 Oct
American Airlines Logo
07:15 - 10:10SAN-LGW
18h 55m2 stops
American Airlines Logo
15:05 - 07:16LGW-SAN
24h 11m2 stops
£459American Airlines
Find Deal
Fri, 26 Sep - Fri, 3 Oct
Iberia Logo
06:22 - 07:10SAN-EDI
16h 48m1 stop
Iberia Logo
11:35 - 21:43EDI-SAN
18h 08m1 stop
£607Iberia
Find Deal
Tue, 30 Dec - Thu, 8 Jan
Iberia Logo
06:15 - 08:50SAN-LCY
18h 35m2 stops
Iberia Logo
19:15 - 20:09LCY-SAN
32h 54m2 stops
£676Iberia
Find Deal
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 £498 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 £498.

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 1 stop stopover the cheapest option at £603 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 £512 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of return tickets is £1,006 and £854 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 Wednesdays if you are looking for the best rates. For your return to San Diego, you’ll find the best rates on Saturdays and the most expensive ones on Sundays.

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 3 weeks before departure, which saves you about 26% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 7 weeks before departure.

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

Low seasonJanuary
Cheapest flight£183
Best time to beat the crowds (12% less expensive on average)
Most popular time to fly and prices are also 14% lower on average.
Flight from San Diego to London Heathrow 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 morning, when retur flights cost £759 on average. Morning departures are around 22% cheaper than evening flights, on average. The most expensive time of day to fly to the United Kingdom is generally in the evening, which is peak travel time and where the average cost of a ticket is £970.

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.
7.0
IberiaOverall score based on 2928 reviews
7.1Boarding
7.6Crew
6.6Entertainment
6.7Comfort
6.3Food
Airline reviews

It was fortunate that the flight arrived in London in accordance with schedule, and the luggage was promptly transferred to the luggage carousel. However, I find it concerning that even minor issues in economy cabins are prevalent within the industry. American Airlines, in particular, appears to have the least legroom and feels more crowded due to the proximity of neighboring passengers. Additionally, the crew’s adherence to protocol is inconsistent. While they may enforce certain rules set by the FAA on a select few individuals, they often overlook numerous violations, such as failing to reset seat recline during landing.

6.0 GoodAlexander, Sept 2025JFK - LHR
Read more Iberia reviews

It was fortunate that the flight arrived in London in accordance with schedule, and the luggage was promptly transferred to the luggage carousel. However, I find it concerning that even minor issues in economy cabins are prevalent within the industry. American Airlines, in particular, appears to have the least legroom and feels more crowded due to the proximity of neighboring passengers. Additionally, the crew’s adherence to protocol is inconsistent. While they may enforce certain rules set by the FAA on a select few individuals, they often overlook numerous violations, such as failing to reset seat recline during landing.

Easy and organized getting in and out of the flight

We liked the flight but while we purchased an aisle seat, our seats had a different configuration on this flight. A fellow passenger suggested that the airplane had been changed. Too bad we were not informed and had no chance to modify our seat preferences. We were stuck in the window and middle seats with no chance to walk around and go to the bathroom without disturbing our sleeping fellow passenger.

The crew were not very personable. The crew did not serve tea or coffee. The bathroom was not kept clean. Two out of the 5 toilets in the cabin weren't working.

It was extremely cold in the back of the plane. The seats are uncomfortable and space very small. Crew was excellent as usual.

Check in needed to be in person, not nice. Also I won’t do connections in Charlotte again because you need to go through security again and short connections become a problem

Iberia lost my bag, said they found it in another country, said they sent it to me, but never did. Went my whole trip without my stuff, but expecting it to show up because that’s what they said would happen. Their communication sucks, their website sucks, and to top it all off, their seats are small and uncomfortable. They’re bad at their jobs and they should feel bad about themselves. Do not even get me started on the flight home. AVOID!

I described my experience in the previous window. I didn't realize that there would be another opportunity for this flight. Please look at my response in the previous window.

Boarding was 2 1/2 late no explanation Captain said he did not know why, but he rested at home for an extra couple of hours. Food was edible, Nothing more.

I liked the comfort of the plane. It was unexpected from past experiences.

The seating has become ridiculous… like a contest to see how narrow and short they can be made- forcing anyone over 5’1 to pay more to not be twisting oneself into a pretzel. Really insane- would have thought BA was better than this. Frankly- it cancels out a lot of the positive aspects.

flight was delayed from BWI to London - missed my connecting flight & then connecting flight (also British Air) was delayed - food is awful, TV & movie selection is great

Super tight economy class. My knees were hitting the back of seat in front of me (I'm only 5'6"). My small backpack (sized according to their required dimensions) would not fit under the seat in front of me because there is a box (is that the life jacket?) in the way. Over all, extremely uncomfortable. I forgive the tasteless food, but the tight seating was torture

Didn’t fly with them as someone had cancelled my flight

Online check-in 24 hours in advance something seems not so easy to check in to pick seats and to print a boarding pass

I like the crew, very welcoming. Food can be better. The seat arms don’t go up so. I could use the empty seat next to mine to relax better. 3hrs delay 😠

Boarding was efficient and quick, crew was very attentive, seats were comfortable.

Everything was very good! I personally struggled with the heat in the cabin for the first 2 hours

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.

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

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car hires and package deals with KAYAK.