LON - SAN

£310 Find Cheap Flights from London 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 from London to San Diego departing on 13/9. 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 in flight searches from London to San Diego.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to San Diego.
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Everything you should know

Cheapest return fare
£580
Typical prices: £669-£512
United Airlines
Thu 4/6Mon 22/6
LHR - SAN • 1 stop
Cheapest direct flights
£584
Typical prices: £855-£594
British Airways
Wed 17/6Thu 6/8
LHR - SAN • Direct
Advice from real travellers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Finnair's A350 offers a more comfortable journey.
Upgrade to BA's premium economy for extra legroom.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from £580 (return)
Best reviews • 7.4 score
Airline reviews
Airline reviews
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Airline reviews
Airline reviews
+1
Direct flights
You can fly direct with British Airways. Average duration is 11h 20m
Direct flights
Direct flights
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Direct flights
Direct flights
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Top routes
Cheapest
Most popular
Insights
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Avoid delays
Most punctual • 84% on-time
Best time • Fewest delays
Insights
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Top stopover airports
Cheapest • Avg £484 (return)
Shortest trip • 13h 20m (one-way)
Insights
Insights
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When to book
in advance
Our data shows that travellers who book at least 3 weeks in advance save around 22% compared to booking last minute.
Insights
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When to travel
Cheapest • 15% price drop
Most popular
Good to know
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Flight Deals

Cheap Flights from London to San Diego (LON-SAN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from London 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 return flight deals from London to San Diego

Thu, 4 Jun - Mon, 22 Jun
United Airlines Logo
11:05 - 22:34
LHR
-
SAN
19h 29m
1 stop
United Airlines Logo
10:13 - 11:35
SAN
-
LHR
17h 22m
1 stop
£580United Airlines
Thu, 4 Jun - Sun, 21 Jun
United Airlines Logo
13:00 - 22:49
LHR
-
SAN
17h 49m
1 stop
United Airlines Logo
10:10 - 07:45
SAN
-
LHR
13h 35m
1 stop
£580United Airlines
Tue, 8 Sep - Tue, 22 Sep
Lufthansa Logo
07:25 - 15:25
LHR
-
SAN
16h 00m
1 stop
Lufthansa Logo
12:33 - 09:40
SAN
-
LHR
13h 07m
1 stop
£581Lufthansa
Wed, 17 Jun - Thu, 6 Aug
British Airways Logo
11:35 - 14:55
LHR
-
SAN
11h 20mdirect
British Airways Logo
19:40 - 14:20
SAN
-
LHR
10h 40mdirect
£584British Airways
Wed, 3 Jun - Sat, 20 Jun
British Airways Logo
11:35 - 14:55
LHR
-
SAN
11h 20mdirect
British Airways Logo
16:45 - 11:30
SAN
-
LHR
10h 45mdirect
£599British Airways
Sat, 12 Sep - Sat, 19 Sep
JetBlue Logo
08:15 - 20:01
LHR
-
SAN
19h 46m
1 stop
JetBlue Logo
21:30 - 20:45
SAN
-
LHR
15h 15m
1 stop
£603JetBlue
Tue, 8 Sep - Wed, 16 Sep
Lufthansa Logo
07:25 - 15:25
LHR
-
SAN
16h 00m
1 stop
Lufthansa Logo
17:15 - 17:05
SAN
-
LHR
15h 50m
1 stop
£606Lufthansa
Wed, 9 Sep - Thu, 17 Sep
Virgin Atlantic Logo
09:20 - 22:55
LCY
-
SAN
21h 35m
2 stops
Virgin Atlantic Logo
13:40 - 16:40
SAN
-
LCY
19h 00m
1 stop
£676Virgin Atlantic
Tue, 8 Sep - Tue, 22 Sep
Virgin Atlantic Logo
09:20 - 23:43
LCY
-
SAN
22h 23m
2 stops
Virgin Atlantic Logo
13:40 - 19:45
SAN
-
LCY
22h 05m
1 stop
£679Virgin Atlantic
Mon, 1 Jun - Sun, 7 Jun
JetBlue Logo
12:20 - 12:31
LGW
-
SAN
32h 11m
1 stop
JetBlue Logo
11:03 - 09:35
SAN
-
LGW
14h 32m
1 stop
£692JetBlue
Booking Insights

KAYAK’s insights & trends for London to San Diego flights

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

How much is a return flight from London to San Diego?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from London to San Diego departing in June.

What is the cheapest London to San Diego flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from London to San Diego costs £609 on the route between London Heathrow Airport (LHR) and San Diego (SAN). It is also the most popular route.

What’s the cheapest day of the week to fly from London to San Diego?

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

Your flight ticket price will generally be cheaper if you fly to San Diego on a Tuesday and more expensive on a Saturday. On your return trip to London, you should consider flying back on a Monday, and avoid Fridays for better deals.

What is the cheapest month to fly from London to San Diego?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London 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 from London to San Diego is February, where tickets cost £340 (return) on average. On the other hand, the most expensive months are July and August, where the average cost of round-trip tickets is £448 and £434 respectively.

Can I save money by flying with a stopover from London to San Diego?

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 £594 on average.

How far in advance should I book a flight from London 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 from London 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 on the flight from London to San Diego, you should book around 3 weeks before departure, which saves you about 22% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 18 weeks before departure.

Expert advice

Expert advice for your flight from London to San Diego

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Duncan Madden

Duncan Madden

Expert on British Airways

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Gabriel Leigh

Gabriel Leigh

Expert on Finnair

Gabriel is a writer and video creator. As senior content producer for Flightradar24 and Monocle’s transport correspondent, he keeps a close eye on aviation in particular. He has also written travel articles for the likes of The New York Times. Born in New York but raised around the world, he now lives in Sweden. He’s been to 75 countries, flying 2.3 million miles on 113 airlines and through 234 airports in the process.

Good to know - Cheap tickets from London to San Diego

Low seasonFebruary
Cheapest flight£397
Best time to beat the crowds (15% less expensive on average)
Most popular time to fly and prices are also 15% lower on average.
Flight from London Gatwick Airport to San Diego

When to book flights from London to San Diego

Are your dates flexible? Find out the best times to travel from London to San Diego based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from London to San Diego

  • How can I travel into downtown San Diego and the surrounding area from SAN Airport?

    There is a city bus on Route 992 that can take you from the airport to downtown San Diego, which will pick you up from Terminal 1 or 2. On weekdays it works from 05:00 to 23:30 every 15min and on the weekends and holidays every 30min. Tickets are around $2.50 (£1.80). You can also connect with the Amtrak Intercity and COASTER trains by taking the Route 992 bus from the airport to San Diego Santa Fe Depot train station in San Diego downtown, taking you to Los Angeles from around $30 (£22) and Orange Counties from approximately $25 (£18).

  • Is it possible to rent a car from SAN airport?

    Yes, the airport has over ten car rental companies for you to choose from, including SIXT, Hertz, Avis, and Enterprise. You’ll collect a car from the airport’s Consolidated Rental Car Centre, which is located outside the airport. There’s a free shuttle bus that can take you from your terminal to the rental centre 24/7, simply follow the signs from the terminal to the car rental bus service.

  • What accessibility services does SAN Airport offer?

    After arriving at the airport you can request a wheelchair for transportation through the airport. You’ll need to contact your airline before flying to request wheelchair services. There are also Volunteer Airport Ambassadors, Airport Traffic Officers, and Harbour Police Officers inside and outside the terminals who can help you if you need assistance. The airport also has TDD telephones and visual paging monitors. You’ll find service animal relief areas throughout Terminal 1 and 2, both curbside and within the building.

  • Is there secure baggage storage at SAN Airport?

    SAN Airport has a Baggage Storage service at around $20 (£14.50) per bag per day, payable by card only. You’ll find the kiosks inside the Baggage Claim area in Terminal 1 and 2. They can also deliver it to you for free if you’re within 15 miles of SAN Airport. You can either make a reservation at the kiosk or online. They also offer curbside delivery and pick up.

  • Which major airlines offer the best stopover routes from London to San Diego (SAN)?

    There are several major airlines offering routes between these cities, but airlines like Iberia, Virgin Atlantic, and Icelandair offer some of the most affordable options. Virgin Atlantic has single-stopover flights via Atlanta or New York, while Iberia offers single-stopover flights that go direct or have a single stop at Dallas/Fort Worth (DFW). Icelandair flights have two stops in Keflavik and Seattle en route.

  • What routes does British Airways offer from London to San Diego?

    British Airways is a popular choice for many travellers and offers a couple of different routes. A direct flight is the most convenient, but more expensive. Various stopover flights stop in cities like Chicago, Seattle, Phoenix, and San Francisco.

  • What is the baggage policy for American Airlines flights between these cities?

    American Airlines standard Economy tickets all have the same baggage policy. You can take a single carry-on cabin bag and one checked-in bag weighing up to 23 kg. During the booking process, you can add extra luggage for a price. This is usually cheaper than paying for extra in person.

  • How can I decrease my Co2 emissions on these flights?

    Flights with reduced Co2 emissions are an ideal way to lower your carbon footprint on these flights. KLM and Austrian Airlines have the best options on this route. KLM offers flights from Heathrow with a stopover in Los Angeles and 38% fewer emissions. Austrian Airlines has flights from Heathrow with a stopover in Los Angeles.

  • What is the cheapest flight from London to San Diego?

    In the last 3 days, the lowest price for a flight from London to San Diego was £310 for a one-way ticket and £580 for a return.

  • Which airports will I be using when flying from London to San Diego?

    There are 6 airports in London (London City, London Gatwick, London Heathrow, London Luton, London Southend, and London Stansted.) and only 1 airport in San Diego (San Diego). The cheapest flights are generally found on the London Gatwick Airport to San Diego flight route.

  • Which airlines offer Wi-Fi service onboard planes from London to San Diego?

    Only KLM offers inflight Wi-Fi service on the London to San Diego flight route.

  • Which aircraft models fly most regularly from London to San Diego?

    The Boeing 777-300ER is the aircraft model that flies most regularly on the London to San Diego flight route.

  • Which airline alliances offer flights from London to San Diego?

    SkyTeam, Star Alliance, and oneworld are the airline alliances operating flights between London and San Diego, with SkyTeam being the most commonly used for this route.

  • On which days can I fly direct from London to San Diego?

    There are direct flights from London to San Diego on a daily basis.

  • Which is the best airline for flights from London to San Diego, KLM or Finnair?

    The two airlines most popular with KAYAK users for flights from London to San Diego are KLM and Finnair. With an average price for the route of £685 and an overall rating of 7.8, KLM is the most popular choice. Finnair is also a great choice for the route, with an average price of £589 and an overall rating of 7.6.

  • How does KAYAK find such low prices on flights from London 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 from London to San Diego.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Diego from London 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 London to San Diego?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to San Diego with an airline and back to London with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London 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 from London up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from London to San Diego

  • Looking for a cheap flight from London to San Diego? 25% of our users found flights on this route for £602 or less one-way and £724 or less round-trip.
  • At San Diego International Airport (SAN) you’ll find a Travelex Currency Exchange booth in Terminal 2 by the Baggage Reclaim area. It’s open 05:00 to 20:00 every day of the week. There are also several ATMs throughout the airport for you to withdraw your money from.
  • If you discover that you have forgotten or lost something of yours at SAN Airport then you can arrange to collect it from the airport or they can post it to you. They keep things found in the terminals, at curbside areas, and in shuttles for 90 days, but items such as cosmetics, toiletries, and pillows only for 7 days.
  • There are several hotels within a 5min drive of SAN Airport, such as Holiday Inn Express and Comfort Inn & Suites. Both of these hotels have a free shuttle service from the airport.
  • There are two cafes within Terminal 1 and 2 of SAN Airport that are open 24h. There are also several vending machines where you can buy refreshments 24/7.
  • SAN Airport has a Traveller’s Aide service to help you if you find yourself stranded or distressed. The volunteers are in the Baggage Claim area in Terminal 1 and 2 and they can assist you in emergencies and with enquiries between 08:00 and 23:00.
  • London Heathrow Airport (LHR) is an ideal choice for passengers with children due to its family-friendly amenities. The airport offers dedicated children's play areas, baby-changing facilities, and family-friendly restaurants. It also provides services like stroller rentals. Additionally, the airport has spacious terminals with a wide range of shops and entertainment options.
  • If you're booking cheap flights from London Gatwick (LGW), consider using public transport rather than expensive taxis. The Gatwick Express is the most convenient option and takes about 30 minutes from London Victoria Station. The train leaves from the station every 15 minutes.

Prefer to fly direct from London to San Diego?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from London to San Diego.
Find which airlines fly direct from London to San Diego Airport, which days they fly and book direct flights.

Direct departures

London to San Diego

Monday

British Airways

British Airways

Tuesday

British Airways

British Airways

Wednesday

British Airways

British Airways

Thursday

British Airways

British Airways

Friday

British Airways

British Airways

Saturday

British Airways

British Airways

Sunday

British Airways

British Airways

See more direct flights

Direct returns

San Diego to London

Monday

British Airways

British Airways

Tuesday

British Airways

British Airways

Wednesday

British Airways

British Airways

Thursday

British Airways

British Airways

Friday

British Airways

British Airways

Saturday

British Airways

British Airways

Sunday

British Airways

British Airways

See more direct flights

Reviews of the top 5 airlines flying from London to San Diego

 
See real verified KAYAK customer reviews for airlines flying from London to San Diego. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from London 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 9680 reviews
8.1Crew
6.6Food
7.3Comfort
7.7Boarding
7.1Entertainment
Airline reviews

Outstanding service, efficient & friendly crew, flight was safe, comfortable & on time

10.0 ExcellentAnonymous, Apr 2026
SFO - LAX
Read more United Airlines reviews

Outstanding service, efficient & friendly crew, flight was safe, comfortable & on time

Outstanding service, great food, friendly & efficient crew, safe & comfortable flight

Staff were not attentive, wifi did not work, cut my head in the bathroom due to the position of the soap on the sink, had blood running down my face, told staff, they had no expression no sympathy, didn't even say "sorry", they said "oh we will have a look at that" about 10 mins later the purser brought me a bandaid, still no sorry.... Shocking

The crew was great. Very friendly and responsive. The plane was old, small and tight. We ran out of overhead space and I had to check. Middle seat was particularly tight.

The flight was delayed from take off because only one runway was operational in San Francisco.

Several missed and almost missed connections. It felt like everything was being patched together last minute without enough resources and it ended up being an extremely stressful experience that basically ruined our weekend on the west coast. What a waste.

Dinner was good, but the breakfast served in the morning was horrible.

Packed in plane small uncomfortable seats elbow to elbow nobody wants to be in that situation for the money they paid

First time flying with UA and it was a great experience. Thank you

Checking in united could not figure out my star alliance gold. Baggage did not get marked priority and didn't receive boarding passes. When got to SFO lounge personal fixed everything Immediately

Seating and zone. The minor I went with didn’t even seat close to me

My seat 3G did not go down fully and the buttons were not working properly

Food has been disappointing in both legs of flight to india

Great staff great experience, made a 2 hour delay very bearable

Great staff, great experience, made a 2 hour delay very bearable

Food was the worst I’ve had on a VA flight. Normally it’s a lot better

I was my pleasure to fly virgin on my birthday for my first solo trip ever 🫶🏼

These are one of the older seat arrangements facing away from the windows! Not particularly convenient sets. No storage spaces. NO COAT HANGING HOOKS. Inconvenient business class seat compared to any other airlines of similar class. Staff are excellent! Extremely professional, friendly. Food is good too.

Overall, flight was excellent but check in was very slow for Premium Economy. Economy queue was shorter but we weren't allowed to use it.

The staff was not very polite but the flight was very very nice and comfortable and the entertainment was great

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

British Airways is an excellent airline. Comfort, food and airline personnel.

Older airplane with worn out seats. No entertainment system at all. Connecting to Wi-Fi was problematic and hit and miss.

An delay of almost 3 hours while passengers were already in the plane kept us very uncomfortable. The food was also very limited. A bad experience overall.

I understand that there is a catering issue - water should be the minimum stock. During the flight, not once that the attendants came through with water. The conversations in the kitchen were very loud and they were swearing. I do not expect any white glove service, at the minimum, we should be cordial. It was almost an inconveniece that we were on the flight. And it made us feel if you even dare question us, we'll make you deplane.

The flight attendant use 1.5 hours to answer my call. My dirty food tray was unattended.

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.

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

The business class seats are dated and uncomfortable. The space is bare minimum and there is absolutely no privacy. For $4K, this is not what I expect.

Flight, food and crew were all good, friendly and very satisfactory.

Generally good. Not their fault but the design of the Boeing 747 had seating supports directly in line with my legs. So my legs always had to straddle this support which caused body misallignment. Such poor design from Boeing. There was no USB port for me to charge my phone. The screen touch control was very poor.

Flight map did not work. Crew was great, food was good, plane took off on time and landed early. That's all I can ask.

Patrick and the whole crew were amazing! Hope to have this team for all my European trips.

Smooth flight with enough time for connection. Ran out of meal options. In-flight and gate staff were friendly and helpful. Good service overall.

Paid for exit row at the back of the plane. Window seat with lots of leg space. Food was inedible (as usual). Brought my own.

They don’t give information on why a flight is delayed in a timely manner. Very frustrating.

The plane (Mitsubishi CRJ) felt old, creaking and not very new. The crew was okay. Hot water provision was broken so hot beverages could't be served.

Best flight attendants ever! Very customer and service oriented, courteous, professional and helpful.

Never happened. Flight was delayed. Had to be re rojyed

Lufthansa is my favorite airline and have flown oversea with them for the past 25 years: i always found them so professional and incredibly efficient from checking in to arrival. I also love their Munich or Frankfurt airports.

A shout-out to the flight attendent, Lauren, who was the main person assisting me. She was amazing - perfect balance of bright, cheerful, engaging, yet formal

OK, except for a cabin attendant's lack of attention.

efficient. on time. cabin crew were very professional and very nice to deal with. would definately fly BA again.

It was great overall. A few slight improvements could be made on the onboarding process at the Gates with announcements and clarity of communications (both at the gate and in flight). The movies in the entertainment options could be improved for bollywood, hollywood.

I alrady responded to this request, and expllaned at length that this was the worst flying experience in my 77 years. I will NEVER fly BA again.

Airbus A350 is poorly designed for wheelchair users and reduced mobility passengers. The angle of the pods makes it awkward to transfer. I was able to but I have ab stability. It could be a real challenge for people with more severe mobility impairments. You'd think Airbus would have come up with a solution for this or thought more about us disabled folks more when designing this aircraft.

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.

Everything was spectacular except the boarding. It was just a mob of people while all groups were called over the public address system.

The Britts are wonderful to fly with and the crew were very hospitable. Again, I really wish they had been able to retrieve my carryon bag from baggage claim before the flight so I could be in a less worrisome state of mind, but that's not on them. I completely understand. The window seats with the dimmable windows were very cool!

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.

Everything you need to know for your flight from London to San Diego

Other airlines flying from London to San Diego

Flights from the other most popular airlines that fly from London to San Diego according to KAYAK users. Prices are the lowest found on KAYAK over the last 7 days. Price and availability are not guaranteed.