$400 Find Cheap Flights from the United Kingdom to San Diego - Compare and Save

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 9/25. 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

Wed, Sep 9 - Fri, Sep 25
Scandinavian Airlines Logo
9:35 am - 11:34 pm
MAN
-
SAN
21h 59m
2 stops
Scandinavian Airlines Logo
10:56 am - 6:30 pm
SAN
-
MAN
23h 34m
2 stops
$768Scandinavian Airlines
Wed, Sep 23 - Mon, Sep 28
Scandinavian Airlines Logo
9:35 am - 11:34 pm
MAN
-
SAN
21h 59m
2 stops
Scandinavian Airlines Logo
3:00 pm - 6:30 pm
SAN
-
MAN
19h 30m
2 stops
$826Scandinavian Airlines
Wed, Sep 23 - Mon, Sep 28
Scandinavian Airlines Logo
9:35 am - 11:34 pm
MAN
-
SAN
21h 59m
2 stops
Scandinavian Airlines Logo
10:54 am - 6:30 pm
SAN
-
MAN
23h 36m
2 stops
$827Scandinavian Airlines
Tue, Sep 1 - Mon, Sep 14
British Airways Logo
7:00 am - 2:55 pm
GLA
-
SAN
15h 55m
1 stop
British Airways Logo
4:45 pm - 2:50 pm
SAN
-
GLA
14h 05m
1 stop
$838British Airways
Tue, Sep 1 - Mon, Sep 14
British Airways Logo
8:35 am - 2:55 pm
GLA
-
SAN
14h 20m
1 stop
British Airways Logo
1:10 pm - 2:50 pm
SAN
-
GLA
17h 40m
2 stops
$843British Airways
Wed, Oct 7 - Wed, Oct 21
Air Canada Logo
2:05 pm - 11:47 am
LHR
-
SAN
29h 42m
2 stops
Air Canada Logo
4:55 pm - 10:00 am
SAN
-
LHR
33h 05m
2 stops
$854Air Canada
Wed, Nov 11 - Thu, Nov 19
Air Canada Logo
2:30 pm - 8:36 am
LHR
-
SAN
26h 06m
2 stops
Air Canada Logo
7:05 am - 11:50 am
SAN
-
LHR
20h 45m
1 stop
$855Air Canada
Tue, Sep 15 - Wed, Sep 30
SWISS Logo
9:25 am - 10:10 pm
LGW
-
SAN
20h 45m
2 stops
SWISS Logo
6:40 am - 8:25 am
SAN
-
LGW
17h 45m
2 stops
$855SWISS
Thu, Sep 3 - Sun, Sep 13
SWISS Logo
9:25 am - 10:10 pm
LGW
-
SAN
20h 45m
2 stops
SWISS Logo
6:18 am - 8:25 am
SAN
-
LGW
18h 07m
2 stops
$896SWISS
Tue, Sep 1 - Thu, Sep 17
United Airlines Logo
6:05 am - 8:45 pm
MAN
-
SAN
22h 40m
3 stops
United Airlines Logo
10:30 pm - 5:20 pm
SAN
-
MAN
34h 50m
2 stops
$900United 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 flight to San Diego?

These are the best round-trip prices found by users searching on KAYAK in the last 5 days.

In the last 5 days, the cheapest flight deal to San Diego was found on the route from Newcastle upon Tyne, at $768 return. The most popular connection is from London to San Diego and KAYAK users have found round-trip deals for as low as $853 in the last 5 days.

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 $773. On the other hand, the most expensive day to fly is Saturday, where round-trip prices are $1,455 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 round-trip 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 February, where tickets cost $460 on average for return flights. On the other hand, the most expensive months are October and July, where the average cost of tickets from the United Kingdom is $1,812 and $648 respectively. For one-way flights, the best month to travel is July with an average price of $179.

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 $917 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 $1,022.

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 $925 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 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 18 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$400
Best time to beat the crowds with an average 25% drop in price.
Most popular time to fly and prices are also 13% lower on average.
Flight from Newcastle upon Tyne to San Diego

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.

  • What is the cheapest flight to San Diego?

    In the last 5 days, the cheapest flight deal to San Diego was found on the route from Newcastle upon Tyne, at $768 return. The most popular connection is from London to San Diego and KAYAK users have found round-trip deals for as low as $853 in the last 5 days.

  • 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 $1,146. The cheapest price found on KAYAK in the last 2 weeks cost $844 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 $927 or less one-way and $925 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 3 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 9897 reviews
8.1Crew
7.1Entertainment
6.6Food
7.3Comfort
7.7Boarding
Airline reviews

The flight attendants were very rude, beyond comprehension. I took a business class from London to SFO for the first time on United. When I asked for a second piece of bread during dinner, the serving attendant threw a 3rd bread on my plate and said, “here. You can have this one too”! I couldn’t believe the rudeness of the attendant. Most all attendants were very rude, unhelpful, sing the food was absolutely disgusting. Never fly United internationally in business class. My flight back to SFO was a nightmare!!

2.0 MediocreAnonymous, Nov 2025
LHR - SFO
Read more United Airlines reviews

The flight attendants were very rude, beyond comprehension. I took a business class from London to SFO for the first time on United. When I asked for a second piece of bread during dinner, the serving attendant threw a 3rd bread on my plate and said, “here. You can have this one too”! I couldn’t believe the rudeness of the attendant. Most all attendants were very rude, unhelpful, sing the food was absolutely disgusting. Never fly United internationally in business class. My flight back to SFO was a nightmare!!

Our experience on United Airlines was extremely poor. The plane was extremely cold throughout our entire flight- which multiple people complained about- and we had to wait 2 hours to get a blanket which was too thin and barely helped warm us up. As well as this, none of the entertainment features were working so we had to sit through a roughly 10 hour flight with nothing to keep our attention, including the actual flight path screen. It was an extremely disappointing experience and I would hope that this gets fixed if we ever choose United Airlines again.

Horrific. They missed my connecting flight to San Diego. I didn’t get there until Monday at 9am when I had a mandatory court settlement conference scheduled at 6am since we had parties on the east coast. This caused many issues. All because United apparently forgot to hold the doors open until my flight landed that only had a 10 minute delay. This was the last flight to Southern California. So I couldn’t even rent a car to finish the trip. United cannot be trusted when traveling on specific days and times since weather didn’t have anything to do with the delays.

Was a pain having to leave the plane and reboard but glad the plane was fixed

The senior flight attendants were amazing. Totally different vibe from other carriers. Easy 10 hour flight in Business Class. Great food. Good humor as well.

Connecting flights were poor,especially in Naples.our Lufthansa air bus was a joke.way too small for that long of a flight.no room at all.couldn’t even get out of the seats to move around or go to the bathrooms.we thought we were getting an actual air bus,double decker.i will never fly that long in a plane like that again.kind of misleading to call it an air bus.we actually had more room on our buses that we used.

For a 22 minute flight all you expect is for it to be safe and comfortable

Liked Seat space in Premium Plus Disliked delay, poor management of boarding groups, missed meal at landing.

Lost connnection had to stayON in Chicago Was a mess

Booked economy through United - air canada treated it as standby and was almost refused boarding.

The seat when "flat" was not flat and pad was too thin to cover it.

Delayed for mechanical and no updates on what was happening and how long the delay might be.

We are too tired and frustrated to comment politely at this point

My flight was delayed for several hours. Sitting at gate 16 for several hours, I got a text from Kayak the gate changed to 9 before it was announced. Very bad communication at each gate from American Airlines employees. I received 10 notifications of delay from Kayak. My vacation started off horrible! I will write to American Airlines corporate office also.

The service and food needs to improve to catch up with other international flights

The flight crew was fantastic! Which the seats had a small TV.

also wi-fi never worked attendant said satellite coverage is spotty over water ..... but we were over land!

They attended to my needs as I couldn't walk and they provided a wheelchair for me.q

This time my flight was smooth and uneventful. They started boarding even earlier than it was scheduled. I was pleasantly surprised. Thank you!

Boarding was a mess - the agent basically called every group in rapid succession, so there was no organization at all. The economy seats are a joke, and main cabin extra seats were sold out when I purchased my flight. As such, I was locked in the same position for four hours. Being 6’6”, it was impossible to get my bag out from under the seat in front of me, and I couldn’t have used my laptop even if my bag were accessible due to the minuscule seat pitch. Also the wifi was broken. American is a joke - can’t wait until they merge with Spirit.

Generally very good. I think their service is better than some other big names I used to travel with. Their food variety is second to none - and you can place order beforehand. Their seating design is a bit awkward for service, I'd say. Flight attendants must be tall enough - long legs and arms - to reach the window seat passenger while crossing over the isle passenger. Also appreciated the variety on entertainment.

Lovely big plane. Excellent take off and landing. Cabin crew were so nice. Flight in time no delays

Los Angeles to London. 25th of April 2026. Business class. I was flying backwards with a complete stranger snoring next to me. In Business class. Males and females, strangers lying next to each other. Seats were backwards. I paid for comfort. I got dizziness and stress.

The crew has always been great on BA. They are very friendly and accommodating. I like that they have vegetarian options already in the menu. And the free wine is a nice perk.) I noticed (both directions of my trip) minor upgrades/ replacements needed on the plane itself (touch screen didn't work with touch; bathroom light didn't go on). However, this is one of my favorite airlines.

There was a delay for the San Francisco-London flight, but we were all informed via text and email. The staff was very friendly and nice and the food was good. I do recommend that the airline offer something without eggs or something vegan for the vegetarian meal option. A lot of Indians are lacto-vegetarian, while some could be allergic to eggs/dairy.

Crew were nice, food was good. Boarding was horrendous. We were driven around the airport in a bus forced to climb a long flight of very steep stairs with no adequate handrails to board the plane . In many many years of flying to the US I have never been required to do this . There was no assistance for those needing help getting up the stairs to the plane. A fellow passenger helped me. No idea how other elderly, physically limited passengers or those with young children managed . It was a full flight with crowds trying to get up the stairs. It was an accident waiting to happen.

All service prior to the flight was terrible: online check-in not working, no customer service tel,, multiple airport scanners not working, A huge mess.

Service of the crews were great. Food on flight was very greasy, and salty.

Terrible, broken window and the blinded didn’t shut during the entire flight. Nobody could sleep

Horrible. Crew is not helpful. Lounge is sub standard and overcrowded. Getting to your plane is underwhelming “via a bus”. Worst experience I have had.

Traveling to a place near San Diego?

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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