$326 Find Cheap Flights from the United Kingdom to San Diego

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to San Diego departing on 5/20. 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

KAYAK searches hundreds of travel sites at once for deals on flights to San Diego

 
These are the airlines KAYAK users have selected most often from within our search results for flights to San Diego, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to San Diego, as well as popular online travel agencies
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Cheap Flights from the United Kingdom to San Diego

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from the United Kingdom to San Diego 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 the United Kingdom to San Diego

Tue, Sep 8 - Sun, Sep 13
British Airways Logo
11:35 am - 2:55 pm
LHR
-
SAN
11h 20mnonstop
British Airways Logo
7:40 pm - 2:20 pm
SAN
-
LHR
10h 40mnonstop
$623British Airways
Thu, Sep 10 - Sun, Sep 13
British Airways Logo
2:30 pm - 5:50 pm
LHR
-
SAN
11h 20mnonstop
British Airways Logo
7:40 pm - 2:20 pm
SAN
-
LHR
10h 40mnonstop
$653British Airways
Sat, May 23 - Sat, May 23
United Airlines Logo
10:00 am - 5:41 pm
LHR
-
SAN
15h 41m
1 stop
United Airlines Logo
8:32 pm - 7:25 am
SAN
-
LHR
26h 53m
2 stops
$667United Airlines
Fri, Apr 17 - Wed, May 20
JetBlue Logo
11:55 am - 8:05 pm
LHR
-
SAN
16h 10m
1 stop
JetBlue Logo
9:15 pm - 8:45 pm
SAN
-
LHR
15h 30m
1 stop
$711JetBlue
Wed, May 20 - Wed, May 27
Multiple Airlines Logo
7:40 am - 2:10 pm
LHR
-
SAN
38h 30m
2 stops
Multiple Airlines Logo
3:30 pm - 12:05 pm
SAN
-
LHR
36h 35m
1 stop
$721Multiple Airlines
Tue, Apr 14 - Mon, Apr 20
Lufthansa Logo
7:25 am - 3:25 pm
LHR
-
SAN
16h 00m
1 stop
Lufthansa Logo
12:40 pm - 9:40 am
SAN
-
LHR
13h 00m
1 stop
$727Lufthansa
Tue, Apr 14 - Tue, Apr 21
Lufthansa Logo
7:25 am - 3:25 pm
LHR
-
SAN
16h 00m
1 stop
Lufthansa Logo
6:20 am - 9:00 am
SAN
-
LHR
18h 40m
1 stop
$731Lufthansa
Tue, May 12 - Mon, May 18
Virgin Atlantic Logo
6:30 am - 11:50 am
LHR
-
SAN
13h 20m
1 stop
Virgin Atlantic Logo
10:00 pm - 8:10 pm
SAN
-
LHR
14h 10m
1 stop
$735Virgin Atlantic
Wed, May 20 - Wed, May 27
Multiple Airlines Logo
9:25 pm - 2:10 pm
LHR
-
SAN
24h 45m
2 stops
Multiple Airlines Logo
3:30 pm - 12:05 pm
SAN
-
LHR
36h 35m
1 stop
$738Multiple Airlines
Mon, May 11 - Mon, May 18
United Airlines Logo
6:00 am - 8:43 pm
MAN
-
SAN
22h 43m
2 stops
United Airlines Logo
11:04 am - 5:10 pm
SAN
-
MAN
22h 06m
2 stops
$872United Airlines
Booking Insights

KAYAK's insights & trends for flights to San Diego

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

What is the cheapest day to fly to San Diego?

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

Based on KAYAK data, the cheapest day to fly to San Diego is Tuesday where round-trip tickets can be as cheap as $763. On the other hand, the most expensive day to fly is Thursday, where round-trip prices are $1,019 on average.

What is the cheapest month to fly to San Diego?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to San Diego, 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 to San Diego is January, where tickets cost $656 on average for return flights. On the other hand, the most expensive months are December and July, where the average cost of tickets from the United Kingdom is $1,091 and $982 respectively. For one-way flights, the best month to travel is September with an average price of $740.

What is the cheapest time of day to fly to San Diego?

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

The cheapest time of day to fly to San Diego is generally in the afternoon, when round-trip flights cost $808 on average. The most expensive time of day to fly to San Diego is generally in the morning, which is peak travel time and where the average cost of a ticket is $859.

What is a good deal for flights to San Diego?

If you’re looking for cheap airfare to San Diego, 25% of our users found tickets to San Diego for the following prices or less: From London Heathrow Airport $1,099 round-trip.

How far in advance should I book a flight to San Diego?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to San Diego, 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, you should book around 3 weeks before departure, which saves you about 19% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 22 weeks before departure.

Good to know

Low seasonFebruary
Best time to beat the crowds with an average 17% drop in price.
Most popular time to fly with an average 22% increase in price.

FAQs - booking San Diego flights

  • How do I get from the airport to downtown San Diego by bus?

    To get to downtown San Diego by bus, simply catch the 992 bus line. The service is fully integrated into the airport itself and stops at Terminals 1 and 2 on a regular basis (four times an hour during the week, twice an hour during weekends). A single fare is around $2.50 (roughly £1.80) and the journey takes roughly 20min.

  • How do I get from San Diego Airport to other cities around California?

    By taking the 992 bus directly from San Diego Airport, you can get to the Santa Fe Depot train station that is located downtown. From there, you have a choice between the Amtrak Intercity train and the COASTER train, which can take you to a number of destinations around the region, including Orange County and Los Angeles.

  • Where can I get a hire car at San Diego Airport?

    Since 2016, all car hire companies have been located at the Consolidated hire car Center near San Diego Airport. This separate building can be easily accessed via a free shuttle bus service that operates 24/7. At the hire car Center, you will be able to organise your hire car with representatives from some of the world's top companies, including Hertz, Enterprise, Sixt, and Budget.

  • Can I get from the airport to San Diego by walking or bike?

    Yes, you can: a dedicated path has been installed to allow cyclists and pedestrians to get to and from San Diego Airport without having to worry about vehicular traffic. By taking the path to the east, you can get to downtown San Diego (1h on foot, or 15min by bike), while taking the path to the west can get you to Point Loma (1h 30min on foot, or 30min by bike).

  • Are there on-site hotels at San Diego Airport?

    Yes, the airport's convenient location means you can find a number of hotels nearby if you are planning on getting some rest immediately after your flight lands. For example, the Hilton San Diego Airport is a popular choice with travellers and is located on Harbor Island, which can be accessed via a shuttle bus operated by the hotel itself.

  • How far is San Diego Airport from central San Diego?

    San Diego Airport is 3 miles from the center of San Diego.

  • What is the name of San Diego’s airport?

    San Diego is served by San Diego Airport, also commonly referred to as Lindbergh Field, San Diego, or San Diego Intl. The airport code is SAN.

  • How much is a flight to San Diego?

    On average, a flight to San Diego costs $953. The cheapest price found on KAYAK in the last 2 weeks cost $576 and departed from London Heathrow Airport.

  • How does KAYAK find such low prices on flights to San Diego?

    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 to San Diego.

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

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

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

    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 to San Diego 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 to San Diego?

    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 to San Diego up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to San Diego

  • Looking for a cheap flight? 25% of our users found flights on this route for $581 or less one-way and $1,099 or less round-trip.
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest San Diego flight deals.
  • While luggage trolleys cost around $6 (roughly £4.20) in Departures, they are free for passengers arriving on international flights at San Diego Airport (SAN) and can be found in the baggage claim areas.
  • If you want to catch a taxi from the airport to downtown San Diego, it will cost roughly $25 (£18) and take around 15min, depending on traffic conditions.
  • Kerbside parking at San Diego Airport is prohibited. If you are being picked up, the driver should wait in the Cell Phone Convenience Lot until you are ready.
  • San Diego International Airport is very conveniently located just to the west of the city, less than 4 miles away from the heart of downtown San Diego.
  • Finnair offers direct flights to San Diego, while many other airlines usually include one stop, such as Virgin Atlantic, which stops off at Seattle Airport (SEA) on the way.

Reviews of the top 4 airlines serving from the United Kingdom to San Diego

 
See real verified KAYAK customer reviews for airlines flying to San Diego. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from the United Kingdom to San Diego. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to San Diego? 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.
7.4
United AirlinesOverall score based on 9451 reviews
7.3Comfort
7.7Boarding
6.6Food
7.1Entertainment
8.1Crew
Airline reviews

The economy seats on the 777 was not as cramped as I had feared, but the food was terrible.

4.0 OkayAnonymous, Mar 2026
KIX - SFO
Read more United Airlines reviews

The economy seats on the 777 was not as cramped as I had feared, but the food was terrible.

Terrible experience! delay 2 time and say i dont have ticket

It was amazing. I had several upgraded seats on my flight out. Everything went smooth with no delays.

Flight delayed for more than 16 hrs and no effort was spent to provide an alternate

Flight attendants were friendly & good service, food sucks, seats uncomfortable, not many Asian movies or shows flying from Hong Kong

Flight attendants had a little attitude. Food tastes no good.

Overall we had a good experience during our flight from San Francisco to Houston.

it was a very short flight so my expectations were low.

Good flight. However, when booked flight with United, assumed the layover included by United in San Francisco of 1 hr and 40 minutes was sufficient . Not so and would recommend at least 2 hours or more. Needed to go through US immigration (very long lineups), then pick up bags, take all the way to another terminal, running because we did not have sufficient time. We made the flight because they held the door for us but luggage didn’t follow.

Very disappointing given gate agent behavior. Filed a formal complaint with United.

Smooth flight. From the early boarding and all were on board before departure time and arrived early in ONT. Great crew. Thank you!!!!

The flight was significantly delayed for 6.5 hours because of snow. There was no communication once the plane returned to the gate regarding when the flight would resume. Other flights were departing while our flight was being unloaded for reasons unknown. Our flight also seemed out of the queue regarding further deicing, refueling, and waiting to Taxi to the runway.

They are always late and seats was also not having working charger

did not have enough meal for first class passengers so offer us snack

We were upgraded to Business Class. So comfortable with great service and food options

The flight was completely full. Crew was not happy. Everyone was rude and brusque. Travelling with an arm in a cast and seating in the first row of economy cabin (in front of the separation) I needed help retrieving my tray for the meal. A staff member literally threw the tray on my lap, without helping to take out the tray. Boarding was messy, with 300 people waiting in an encloses space with low ceiling. I will try to avoid AA next time I have a long flight.

The comfort of Business Class made this trip far more comfortable. I was indeed surprised when I asked one of the flight attendant to help me set up my "bed", she responded that "We don't make beds in Business Class any longer...only First Class" I believe her name was Giselle, but I'm not certain. She did instruct me how to adjust the seat, place the hooded cover and I clearly understood how to place the blanket and the cover. Additionally, the meal I was served (a beef dish) was almost inedible. The beef was tough and odd tasting. I didn't mention it as I was hoping to quickly settle down and try to get some sleep.

Amazing I love American. I’ll never fly anyone else if I can help it.

Everything about the flight was lovely. My only suggestion would be to offer a few more options of tv series from Apple TV or HBO.

After the door had been closed, the cockpit makes an announcement that catering is running late and it is not the airline's fault. It is their fault in the sense that we had to sit for 2 hours or more when we could have stayed in the terminal. Poor communications between catering and airline. This caused a young man to lose his temper and he went storming out hitting objects. He had complained to the gate agent that he had already waited at the gate 7 hours and when can the airplane leave? Airilnes do a poor job of explaining delays, maintenance issues, etc. whereas being truthful may gain more sympathy or understanding.

Stewardess was not attentive at all asked for a bottle of water never came by 15 minutes later I asked her she said that she forgot there was only 12 people in first class and two stewardess unacceptable I ordered the fish was the last person to order. They said that they did not have any had to have a different item pasta at the inside of it because I was diabetic. Worst experience I ever had will never travel this airline again.

Very nice staff, terrible food, not very comfortable premium economy.

Boarding, crew, food and baggage handling excellent (no bags lost, yay!). However for an 8 hour flight, there were limited entertainment options. And really would have liked to have a pillow!

The crew was super friendly and helpful. The food was quite good. An overall positive experience.

Plane delayed due to weather. Plane boarded, then told to unboard due to a maintenance issue.

A more organized boarding experience and better food would have made the experience better.

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

why can't planes be boarded from back to front?? everything was great otherwise

We flew into Barcelona and the plane was so cramped and very uncomfortable and dirty. But we flew out of Madrid and that plane was much better. Would fly Iberia again.

For what we are willing to pay for international air travel, our experience was very good. We had no problem checking in, we had very little wait time at the AA counter in Madrid, and the staff in Madrid were very helpful. The flight crew was helpful and courteous, the plane was on the newer side, and our assigned seats were together without us needing to purchase them. The flight took off on time and arrived early. Overall, it was a pleasant experience or as much as could be expected in economy for almost 10 hours.

the service on Business class should be improved to be at par with industry leaders like Cathay Pacific and Singapore AIrlines. A lot of room for improvement.

Late takeoff, but on time landing. Lost bags, 3 days to find them, still in transit to my location. Power outlets broken, Wi-Fi not working, so much for working on the long flight.

Good. For a long flight. The comfort of the seat could be better. Also, the food was « normal » plane food. Not indian plane food unfortunately! Everything else was smooth and great.

The seats were comfortable. So many empty seats allowed for stretching out and sleeping. The onboard entertainment was pretty good. The cabin crew were so kind and kept the passengers well- hydrated, and well fed.

We had American Airlines on our return and it was confusing if we were going with Aa or BA I had 2 different flight numbers and didn’t get our gate until it was boarding. So we were a bit nervous as the which it was

My touch screen at my seat wasn't working, the films BA advertised on the website for this flight were not available, and the plane was a little dated, food was good and the staff were good, just let down by the aircraft facilities.

Did not like the seating configuration at all with 2+3+2 in business class. Lacking total privacy and comfort

Check-in experience, for business call please provide a premium experience

Lost my luggage, ran out of food choices in business class, ground crew was completely unapologetic.

Excellent. The crew and flight were great. Checking in was easy and everyone was very helpful.

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Everything you need to know for your flight to San Diego

Information on the airport you'll fly into in San Diego