LON - SAN

£402 Find Cheap Flights from London to San Diego – Compare and Save

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Everything you should know

Cheapest return fare
£615
Typical prices: £549-£770
Lufthansa
Wed 7/10Fri 30/10
LHR - SAN • 1 stop
Cheapest direct flights
£617
Typical prices: £547-£806
Finnair, Iberia
Tue 17/11Sat 28/11
LHR - SAN • Direct
Direct flights
You can fly direct with British Airways. Average duration is 11h 20m
Direct flights
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Top routes
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Avoid delays
Most punctual • 84% on-time
Best time • Fewest delays
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Top stopover airports
Cheapest • Avg £542 (return)
Shortest trip • 13h 20m (one-way)
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When to book
in advance
Our data shows that travellers who book at least 2 weeks in advance save around 46% compared to booking last minute.
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When to travel
Cheapest • 24% price drop
Most popular
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We hope you love your trip to San Diego!
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Booking Insights
Expert advice
Flight Deals

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

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from London to San Diego

Wed, 7 Oct - Fri, 30 Oct
Lufthansa Logo
07:25 - 15:25LHR  London Heathrow-SAN San Diego
16h 00m1 stop Munich Franz Josef Strauss
Lufthansa Logo
14:08 - 12:00SAN  San Diego-LHR London Heathrow
14h 52m1 stop Chicago O'Hare Intl
£615Lufthansa
Wed, 7 Oct - Thu, 29 Oct
Lufthansa Logo
07:25 - 15:25LHR  London Heathrow-SAN San Diego
16h 00m1 stop Munich Franz Josef Strauss
Lufthansa Logo
12:39 - 09:40SAN  San Diego-LHR London Heathrow
14h 01m1 stop Denver Intl
£615Lufthansa
Tue, 5 Jan - Thu, 14 Jan
British Airways Logo
13:10 - 21:37LHR  London Heathrow-SAN San Diego
16h 27m1 stop Philadelphia
British Airways Logo
14:02 - 12:15SAN  San Diego-LHR London Heathrow
14h 13m1 stop Dallas/Fort Worth
£616British Airways
Tue, 5 Jan - Thu, 14 Jan
British Airways Logo
13:10 - 21:37LHR  London Heathrow-SAN San Diego
16h 27m1 stop Philadelphia
British Airways Logo
18:00 - 12:40SAN  San Diego-LHR London Heathrow
10h 40mdirect
£616British Airways
Tue, 17 Nov - Sat, 28 Nov
Scandinavian Airlines Logo
06:40 - 23:59LHR  London Heathrow-SAN San Diego
25h 19m3 stops Stockholm Arlanda Kastrup Copenhagen New York John F Kennedy Intl
Scandinavian Airlines Logo
11:05 - 21:40SAN  San Diego-LHR London Heathrow
26h 35m2 stops Los Angeles Los Angeles Kastrup Copenhagen
£616Scandinavian Airlines
Sat, 3 Oct - Wed, 7 Oct
Iberia Logo
08:55 - 20:01LHR  London Heathrow-SAN San Diego
19h 06m1 stop Dallas/Fort Worth
Iberia Logo
19:40 - 14:20SAN  San Diego-LHR London Heathrow
10h 40mdirect
£616Iberia
Sun, 1 Nov - Sat, 7 Nov
Air Canada Logo
11:10 - 22:40LHR  London Heathrow-SAN San Diego
19h 30m2 stops Toronto Pearson Intl Chicago O'Hare Intl
Air Canada Logo
07:30 - 11:50SAN  San Diego-LHR London Heathrow
20h 20m2 stops San Francisco Vancouver Intl
£616Air Canada
Fri, 12 Feb - Sat, 27 Feb
United Airlines Logo
11:35 - 19:49LHR  London Heathrow-SAN San Diego
16h 14m2 stops Denver Intl Los Angeles Los Angeles
United Airlines Logo
12:45 - 09:40SAN  San Diego-LHR London Heathrow
12h 55m1 stop Denver Intl
£617United Airlines
Sat, 13 Feb - Sat, 20 Feb
United Airlines Logo
07:40 - 15:45LHR  London Heathrow-SAN San Diego
16h 05m1 stop Chicago O'Hare Intl
United Airlines Logo
12:10 - 10:15SAN  San Diego-LHR London Heathrow
14h 05m1 stop Houston George Bush Intcntl
£617United Airlines
Wed, 23 Sep - Sun, 27 Sep
Iberia Logo
07:50 - 21:30LHR  London Heathrow-SAN San Diego
21h 40m2 stops Madrid Barajas Chicago O'Hare Intl
Iberia Logo
13:10 - 07:40SAN  San Diego-LHR London Heathrow
34h 30m1 stop Chicago O'Hare Intl
£621Iberia
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?

Flight prices are typical for this route right now.

Flights to San Diego from London usually cost between £566 and £678 in October.
The lowest price found in the past 5 days was £615 on Lufthansa (7 Oct–29 Oct).

What is the cheapest London to San Diego flight route?

The cheapest return flight from London to San Diego costs £635 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?

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

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

The cheapest month for flights from London to San Diego is January, where tickets cost £538 (return) on average. On the other hand, the most expensive months are August and July, where the average cost of round-trip tickets is £917 and £861 respectively.

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

Yes, flying with a stopover may cost you more time, but you can also save money on the route, with a 1 stop stopover the cheapest option at £537 on average.

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

To get a below average price on the flight from London to San Diego, you should book around 2 weeks before departure, which saves you about 46% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 6 weeks before departure.

Expert advice

Expert advice for your flight from London to San Diego

 
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 season

February

Cheapest flight

£402
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 London Heathrow 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

Flights from London to San Diego: the best tips from KAYAK users' own experiences

Insights shared by verified travellers who flew the route from London to San Diego 
Verified travelerFlew with British Airways-Aug 2026
Ensure enough time between connections if you have one! Heathrow is a great and efficient airport but it’s big! Be kind! Everyone is there doing their best to help passengers!
Verified travelerFlew with British Airways-Sept 2024
Flight overall is good. Service is very good. Bring yourself some snacks, in case the food isn’t up to your taste.

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 5 days, the lowest price for a flight from London to San Diego was £402 for a one-way ticket and £615 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 Heathrow Airport to San Diego flight route.

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

    The Boeing 777 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, Finnair or Virgin Atlantic?

    The two airlines most popular with KAYAK users for flights from London to San Diego are Finnair and Virgin Atlantic. With an average price for the route of £719 and an overall rating of 7.6, Finnair is the most popular choice. Virgin Atlantic is also a great choice for the route, with an average price of £669 and an overall rating of 7.4.

  • 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 £536 or less one-way and £696 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?

 
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

More options for your flight from London to San Diego

Complete your trip to San Diego with a hotel stay or car hire