£153 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 1/10. 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

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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
London1 stop£376
Manchester
Manchester2 stops£480
Edinburgh
Edinburgh2 stops£495
Liverpool
Liverpool2 stops£700
Cardiff
Cardiff2 stops£704
London
London1 stop£376
Manchester
Manchester2 stops£480
Edinburgh
Edinburgh2 stops£495
Liverpool
Liverpool2 stops£700
Cardiff
Cardiff2 stops£704

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

Tue, 9 Sep - Tue, 16 Sep
Lufthansa Logo
16:11 - 14:10SAN-LHR
13h 59m1 stop
Lufthansa Logo
07:25 - 15:25LHR-SAN
16h 00m1 stop
£376Lufthansa
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Wed, 8 Oct - Wed, 15 Oct
 Logo
08:10 - 06:30SAN-LHR
14h 20m1 stop
 Logo
06:55 - 15:25LHR-SAN
16h 30m1 stop
Mon, 18 Aug - Wed, 3 Sep
Virgin Atlantic Logo
13:22 - 13:10SAN-LHR
15h 48m1 stop
Virgin Atlantic Logo
11:45 - 12:00LHR-SAN
32h 15m1 stop
£383Virgin Atlantic
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Tue, 4 Nov - Wed, 26 Nov
Air Canada Logo
12:45 - 11:50SAN-LHR
15h 05m1 stop
Air Canada Logo
18:00 - 11:18LHR-SAN
25h 18m1 stop
£390Air Canada
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Tue, 4 Nov - Wed, 26 Nov
Air Canada Logo
12:45 - 11:50SAN-LHR
15h 05m1 stop
Air Canada Logo
13:25 - 22:29LHR-SAN
17h 04m2 stops
£392Air Canada
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Mon, 18 Aug - Wed, 3 Sep
Virgin Atlantic Logo
13:38 - 09:50SAN-LHR
12h 12m1 stop
Virgin Atlantic Logo
09:20 - 17:53LHR-SAN
16h 33m1 stop
£394Virgin Atlantic
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Mon, 18 Aug - Wed, 3 Sep
KLM Logo
13:22 - 13:10SAN-LHR
15h 48m1 stop
KLM Logo
12:45 - 20:44LHR-SAN
15h 59m1 stop
£399KLM
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Mon, 22 Sep - Wed, 8 Oct
British Airways Logo
16:40 - 11:25SAN-LHR
10h 45mdirect
British Airways Logo
11:30 - 14:50LHR-SAN
11h 20mdirect
£401British Airways
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Sun, 14 Sep - Thu, 25 Sep
British Airways Logo
16:40 - 11:25SAN-LHR
10h 45mdirect
British Airways Logo
14:55 - 18:00LHR-SAN
11h 05mdirect
£402British Airways
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Mon, 18 Aug - Mon, 25 Aug
KLM Logo
10:47 - 12:05SAN-EDI
17h 18m1 stop
KLM Logo
17:15 - 12:00EDI-SAN
26h 45m1 stop
£530KLM
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?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from San Diego to the United Kingdom.

The cheapest ticket to the United Kingdom from San Diego found in the last 72 hours was to London, at £549 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 £549.

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 £991 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 £524 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of return tickets is £1,030 and £878 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 Fridays 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 24% 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£153
Best time to beat the crowds (18% less expensive on average)
Most popular time to fly and prices are also 8% 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 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 £975.

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 £363 one-way - £696 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.
7.0
IberiaOverall score based on 2859 reviews
6.7Comfort
7.6Crew
7.1Boarding
6.3Food
6.6Entertainment
Airline reviews

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

8.0 ExcellentAnonymous, Jul 2025CLT - IAH
Read more Iberia reviews

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.

BEWARE!!! Iberia changes your seats at random. I paid for a window seat and they changed it to one in the middle aisle resting against the bathroom- can’t lean back + hear every flush. This on a 11 hour flight.. There were families that were broken up with separate seats all over the plane. Lots of upset passengers showing their seat confirmation to the besieged and helpless airline steward. Also, the gluten free meal was tasteless.

Chair is very high. Your feet cannot touch the ground for 8 hours flight. It was a nightmare. Food was bad.

ground crew and check-in was pathetic - insisted on charging me for luggage even though the ticket said it was already included. They also accidentally sent my luggage through without a luggage tag and had to retrieve it. Generally, it was like a bad movie.

Moved the flight an hour later, were not reliable about confirmation, website didn't work, no gate information, boarding was a mad house. Flight itself was fine and short. Organization needs work.

The app on phone and the online check in is not good, it would not give me the option of Spain or Madrid City in the drop down menu and I couldn't move forward with online check in.

Flight was delayed. Though I checked in with BA live chat three times, our special meals were not provided.

My experience with British Airways is excellent, thanks for all 🫶🏻✈️

Old tired plane, Uncomfortable business class seat. Breakfast dreadful and meagre. At least flight was on time!

The crew is very friendly and helpful. The food is good for airplane food. The flight is long and hard to sleep. The leg space is great. The plane arrived in plenty of time.

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

Captain sick. Unable to get replacement so delayed me 30 hours, many others delayed 54 hours. TOTALLY DESTROYED ALL MY PLANS, including lost my rental car which would now cost over 5 times what I paid so stuck with buses n trains... lost hotel reservations.... HORRIBLE!!!

They’ve lost my bag and I have no way of really getting in touch with anyone and have received no updates.

Very crowded, no real explanation of food "chicken or pasta?" After dinner no drinks service. Plane was clean, but little help with finding soaces fir luggage to get into overhead bins. Many passengers putting 2 bags, hats, duty free in overhead bins so no space for roll ons

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.

The check-in of my luggage was terrible. When purchased my tickets, one luggage and one carry-on was part of the fight. My flight was switched from British to American Airline. During check-in of luggage at the airport, I was denied and had to pay extra $75. How do I get reimbursed for this extra luggage payment?

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

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