$369 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 1/16. 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 round-trip prices found by our users on KAYAK in the last 72 hours
London
London3 stops$635
Edinburgh
Edinburgh1 stop$590
Manchester
Manchester1 stop$591
Birmingham
Birmingham2 stops$634
Inverness
Inverness2 stops$565
Bristol
Bristol2 stops$740
Leeds
Leeds2 stops$906
Liverpool
Liverpool2 stops$794
Cardiff
Cardiff2 stops$1,942
London
London3 stops$635
Edinburgh
Edinburgh1 stop$590
Manchester
Manchester1 stop$591
Birmingham
Birmingham2 stops$634
Inverness
Inverness2 stops$565
Bristol
Bristol2 stops$740
Leeds
Leeds2 stops$906
Liverpool
Liverpool2 stops$794
Cardiff
Cardiff2 stops$1,942

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 round-trip 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 round-trip flight deals from San Diego to the United Kingdom

Mon, Jan 12 - Mon, Jan 26
British Airways Logo
6:00 pm - 4:35 pm
SAN
-
GLA
14h 35m1 stop
British Airways Logo
6:35 am - 4:10 pm
GLA
-
SAN
17h 35m1 stop
$588British Airways
Wed, Mar 11 - Sun, Mar 22
British Airways Logo
7:00 pm - 6:35 pm
SAN
-
EDI
16h 35m1 stop
British Airways Logo
9:15 am - 5:05 pm
EDI
-
SAN
14h 50m1 stop
$590British Airways
Mon, Jan 12 - Tue, Jan 27
JetBlue Logo
9:15 pm - 9:40 pm
SAN
-
LHR
16h 25m1 stop
JetBlue Logo
9:20 am - 8:20 pm
LHR
-
SAN
19h 00m1 stop
$637JetBlue
Thu, Jan 15 - Tue, Jan 20
JetBlue Logo
9:00 pm - 8:45 pm
SAN
-
LHR
15h 45m1 stop
JetBlue Logo
9:20 am - 8:20 pm
LHR
-
SAN
19h 00m1 stop
$638JetBlue
Thu, Jan 22 - Mon, Jan 26
United Airlines Logo
8:10 am - 12:35 pm
SAN
-
BHX
20h 25m2 stops
United Airlines Logo
1:20 pm - 11:53 am
BHX
-
SAN
30h 33m2 stops
$655United Airlines
Thu, Jan 22 - Mon, Jan 26
United Airlines Logo
6:15 am - 12:35 pm
SAN
-
BHX
22h 20m3 stops
United Airlines Logo
6:00 am - 6:44 pm
BHX
-
SAN
20h 44m2 stops
$659United Airlines
Tue, Mar 3 - Mon, Mar 9
Virgin Atlantic Logo
2:00 pm - 6:25 pm
SAN
-
LCY
20h 25m1 stop
Virgin Atlantic Logo
5:05 pm - 1:05 pm
LCY
-
SAN
27h 00m1 stop
$688Virgin Atlantic
Sun, Feb 8 - Wed, Feb 25
Virgin Atlantic Logo
6:30 am - 9:30 am
SAN
-
LCY
19h 00m2 stops
Virgin Atlantic Logo
8:05 pm - 12:05 pm
LCY
-
SAN
24h 00m1 stop
$692Virgin Atlantic
Sun, Jan 11 - Wed, Feb 4
Delta Logo
10:00 pm - 4:35 pm
SAN
-
LCY
34h 35m2 stops
Delta Logo
8:40 am - 8:48 pm
LCY
-
SAN
20h 08m2 stops
$702Delta
Tue, Mar 24 - Mon, Apr 13
Delta Logo
3:00 pm - 4:35 pm
SAN
-
LCY
18h 35m1 stop
Delta Logo
10:00 am - 11:50 am
LCY
-
SAN
33h 50m1 stop
$703Delta
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 $473 round-trip. 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 $473.

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

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $734, 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 $692 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of round-trip tickets is $1,364 and $1,115 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 Wednesday and avoid Thursdays if you are looking for the best rates. For your return to San Diego, you’ll find the best rates on Mondays and the most expensive ones on Fridays.

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 the flight from San Diego to the United Kingdom, you should book around 2 weeks before departure, which saves you about 18% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 7 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$370
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly and prices are also 12% 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 travelers 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 round-trip 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 afternoon, when round-trip flights cost $880 on average. On average, there is no price difference when choosing to fly in the morning or the evening on this flight route. 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 $942.

Top tips for finding cheap flights to the United Kingdom

  • Looking for a cheap flight? 25% of our users found tickets from San Diego to the following destinations at these prices or less: London $408 one-way - $639 round-trip

Reviews of the top 5 airlines serving 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.
7.9
DeltaOverall score based on 8009 reviews
7.9Comfort
8.1Boarding
8.5Crew
7.3Food
7.9Entertainment
Airline reviews

No lunch on a x-country flight scheduled for 10:50 am departure, arrived 5+ hrs later. That requires a black box label before you pay for the tickets. Worst, when I checked in online, it's specifically said that lunch was served on his flight for economy Plus passengers.

8.0 ExcellentDeborah, Nov 2025
LAX - RDU
Read more Delta reviews

No lunch on a x-country flight scheduled for 10:50 am departure, arrived 5+ hrs later. That requires a black box label before you pay for the tickets. Worst, when I checked in online, it's specifically said that lunch was served on his flight for economy Plus passengers.

Our flight from SFO to MSP was right on time on 11/15/2025. No delays. As we approached MSP at about 8 pm, we circled in the air until 8:40 pm so I don't call that efficient for MSP. I think the captain should announce the delay and why. (as if we all don't know that we are just circling around the area, slowing down, speeding up, slowing down.) Thank you. Marilyn Fischer

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

Delayed flight (1hour) plus a long layover after an overnight flight with no backup plane available.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

My husband upgraded our seats and I don't know if it was due to the type of planet was or if they didn't upgrade our seats. We were supposed to be in I believe comfort seats and they were just as tight as any other seat- no leg room and we are very tall people but at least it wasn't extremely cold. My husband did put in a complaint about our seating because he paid extra and if we would have known that the space and the tightness would have been the same, we just would have gotten the emergency row emergency row seats that we normally get. We love Delta but both our flights coming home we're not good. Oh I forgot to mention that on our flight to Hawaii our luggage wheels got broke and we had to purse new luggage on vacation then we never had this problem so we didn't know protocol and reported it after we got home only for them to tell is we only had 24hrs to report the damage. Not sure what was going on with Delta this vacation trip.

Crew was excellent. Comfort seats not as nice as other kinds of planes.

It was a great flight and the stewards and stewardess were all kind and accommodating!! The seats were comfortable and entertainment screen excellent!

There are 4 flights in consecutive gates with about the same departure time. Two flights were boarding at the same time. One was delayed or boarding would be happening at the same time. I am not sure what Delta and LAX need to do to have a better layout at the end of Terminal 2

from SFO-> FRA flight, AVML meal was significantly less compared to regular meal, especially no Desert, no Bread, no sides.

This was an older airplane. The cabin was constantly warm to hot throughout the 10 hour flight and there were no vents to personalize air flow. Also since it was an older plane, the material and comfort of the chairs were very uncomfortable. I left my flight with major soreness on my tailbone.

Older aircraft, no meal, only food was for purchase. Not impressed United.

Not pleasant trip cross country when the entertainment and WiFi system not working. No entertainment for entirety of route. Staff was rather nonchalant in that they dismissed the problem due to age of plane. It would have been nice to know this up front so I could have come prepared to read or download movies before boarding Coincidentally or not, there was a similar issue with the entertainment system on my previous flight I took on my fist leg of the trip. There are no seat TVs, so you must rely on the app when it works. United can do better. Also, what use it it to pay for boarding group 2 when half of the passengers are in the same line as you?

My experience on this United Airlines flight was highly uncomfortable, primarily due to two issues: Cabin Temperature: The temperature on the Boeing 737 MAX 8 was unacceptably high, feeling consistently around 80 degrees throughout the flight. This made sleeping impossible and significantly detracted from the experience. Seating Arrangement: Being stuck in a middle seat for a six-and-a-half-hour overnight flight compounded the discomfort. Moving forward, I will always purchase a seat assignment to avoid this situation.

Premium Plus is a really good idea for longer flights

Same as last comment. Food sucks. Quality. Not surprising most people have no clue about nourishment Clearly

The flight attendants were great, I joked with one I can’t remember her name, a blond, really sweet. I thought it was run well very professional. This was great i survived Spirit, I know for which I speak.

We were in business class. the angled seats in that class do not have a real window view & the placement of the controls are bad. But we knew that. But the food options were mediocre. The taste was fine, but the size was for a child. It’s just really feels like United is skimping on everything. Even when we were in the Polaris lounge they did not have diet sodas. They said they were out no Coke zero no Diet Coke, etc. I do not think the portion of nuts they serve on the plane could get any smaller. Really a minimal service and offer for what you’re paying for in business.

I was in first class. The outlets at my seat did not work. The plane was shabby and run down. I had prepurchsed a day subscription for internet that was not redeemable. I had to repurchase the internet for my flight and then it didn’t work anyway. Quite disappointed in what was supposed to be the launch of a great vacation.

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 flight was flawless and we even arrived between 20 and 25 minutes early!

Always seated jammed in rear of aircraft Admirals Club food at DFW terminal D was absolute worst food experience and I pay $600/year to eat this dried out junk

Mostly good. Flight was crowded but Airline personnel were very friendly & accommodating. It would be good to have savory snacks rather than just sweet Biscoff cookies.

It was a red eye flight, so no meals were provided, but it was fine with snacks. The seats felt cramped and almost too narrow.

Very crowded flight but what can you expect these days?? Crew was accommodating.

The seats in economy were appeared to be quite thin and lack sufficient cushioning to be comfortable. Perhaps it was my seating position but the plane seemed notably load.

The entertainment package was vast and the selections were very current. Keep updating it was great.

The seat was so hard my tailbone was aching The crew was kind of a b**** because I made a joke that I didn't care if they close the door I total c*** when she was trying to f****** act like she was mad at me because I said that The flight was bumpy. Sure you didnt have control over that.

the seats were so cramped you could barely move. it was difficult to eat when passengers would recline their seats. the seats were so flimsy and unstable that whenever someone got in and out of their seat, it bounced like a spring back in your face. the movies were nice. the food was terrible. even though the conditions were terrible, they tried to pressure passengers to relocate their seats to accommodate adults who were related and wanted to sit next to each other, even after the passengers expressed that they did not want to move for that purpose. on the connecting flight, the “service” consisted of items for purchase. even though the flight was only 45 minutes, once again passengers (including me) were pressured to relocate for people to sit next to each other. they couldn’t be apart for 45 minutes? this was much less compelling than being apart for an 8 hour flight.

Everything went smoothly, and we even arrived 40min earlier than scheduled, on an Orland-Madrid route.

The staff was very nice and helpful. Some of the best crew I have met.

Suddenly, I don't find my flight back on the app Help Ticket 0757345716866 Hoeflich Flight back Sunday ib5333 Ib2629 Ib4268

Was all good.l including a sofdrink. AA improved significantly. There was no entertainment.

I've taken British Airways before and it has been great. On this trip to Spain and Portugal we had two BA flights. On both flights we were taken by bus from the terminal out to the plane on the tarmac. There were many older folks on these flights, and to ask people in their 70s to lug their carry-on and personal items up the long mobile staircase to the plane entrance, is very disturbing. I won't be taking British Airways in the future. Many people on these flights were very unhappy.

The food on the flight was of marginal quality. Small bits of chicken, instant mashed potatoes and some carrots. The rolls were very dry, nearly inedible. The seats were quite small and didn’t allow for any shifting of position during the flight. There was limited leg room.0

The seats are so small that you can barely move at all. Don't try to eat with utensils in your seat either - you will elbow your neighbor in the face. Miserably small and I swear they are shrinking every time I fly. Food was meh (per usual), but at least there is free alcohol on an overseas flight. Doesn't make up for sitting in a torture chamber while hurtling through the air with hundreds of fussy people, but it's something. Entertainment options (movies, shows) are okay, nothing special, but at least there are screens, because most of the seats in these large planes do not have adjustable lighting - or air control - that you can get to, it's too high to reach - which makes reading impossible. Zero stars, AA.

Terrible customer service. I booked business class and the counter agent didn’t bother asking me about any choice or preferred seat, basically assigned me that last seat and couldn’t even answer if it was a business class seat. Also iberia lost my suitcase on my flight from JFK to MAD with the layover in BCN. Useless customer service at the counter. Thank goodness I happened to check the baggage claim area of the next flight in…there it was.

Disaster. Downgraded. Zero apology. No effort or coordination between gate and crew. Awful seat blocked by door emergency slide box. Iberia is a mess. App never works. Avoid this airline.

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

The flight was excellent in World Travellor plus. Well worth the extra money. Boarding at Phoenix was the usual poorly organized event. Very stressful.

Although business class, the seating was really cramped. The food was so so.

Smooth trip no turbulence which is always a bonus for me lol! In cattle class so an element of being a bit squished (but not as bad as other shorter haul airlines) smaller plane than the one we flew out on and entertainment system wasn’t as modern but still definitely passed the time. Lovely crew x

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