LON - SAN

$564 Find Cheap Flights from London 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 from London to San Diego departing on 10/5. 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.
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Everything you should know

Cheapest round-trip
$792
Multiple Airlines
Thu 10/1Tue 12/8
LGW - SAN • 1 stop
Cheapest non-stop
$829
Typical prices: $862-$1,247
Finnair
Mon 11/16Mon 11/30
LHR - SAN • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
For long-haul comfort, Iberia and BA Premium Economy add space and useful perks.
American's Main Cabin Extra adds early boarding; Premium Economy adds seats and kit.
Expert advice
Expert advice
Expert advice
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Top airlines
Cheapest • from $793 (round-trip)
Best reviews • 7.4 score
Airline reviews
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Nonstop 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 • 83% on-time
Best time • Fewest delays
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Top layover airports
Cheapest • Avg $668 (round-trip)
Shortest trip • 13h 53m (one-way)
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When to book
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 38% compared to booking last minute.
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When to travel
Cheapest • 23% price drop
Most popular
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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 round-trip 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 round-trip flight deals from London to San Diego

Thu, Oct 1 - Tue, Dec 8
Multiple Airlines Logo
2:00 pm - 8:31 pmLGW  London Gatwick-SAN San Diego
38h 31m1 stop Orlando
Multiple Airlines Logo
10:13 pm - 6:00 amSAN  San Diego-LGW London Gatwick
23h 47m1 stop Orlando
$792Multiple Airlines
Sat, Oct 10 - Mon, Oct 19
Lufthansa Logo
1:05 pm - 11:35 amLHR  London Heathrow-SAN San Diego
30h 30m1 stop Los Angeles Los Angeles
Lufthansa Logo
10:11 am - 7:45 amSAN  San Diego-LHR London Heathrow
13h 34m1 stop Houston George Bush Intcntl
$793Lufthansa
Thu, Oct 29 - Wed, Nov 18
WestJet Logo
2:50 pm - 11:45 amLHR  London Heathrow-SAN San Diego
27h 55m1 stop Calgary
WestJet Logo
12:35 pm - 11:50 amSAN  San Diego-LHR London Heathrow
15h 15m1 stop Calgary
$794WestJet
Mon, Nov 16 - Mon, Nov 30
Scandinavian Airlines Logo
6:40 am - 10:57 pmLHR  London Heathrow-SAN San Diego
24h 17m2 stops Kastrup Copenhagen Los Angeles Los Angeles
Scandinavian Airlines Logo
3:00 pm - 9:40 pmSAN  San Diego-LHR London Heathrow
22h 40m2 stops Los Angeles Los Angeles Kastrup Copenhagen
$795Scandinavian Airlines
Tue, Sep 8 - Wed, Sep 16
British Airways Logo
11:35 am - 2:55 pmLHR  London Heathrow-SAN San Diego
11h 20mnonstop
British Airways Logo
9:20 am - 6:50 amSAN  San Diego-LHR London Heathrow
13h 30m1 stop Philadelphia
$840British Airways
Tue, Oct 6 - Tue, Oct 20
British Airways Logo
11:35 am - 2:55 pmLHR  London Heathrow-SAN San Diego
11h 20mnonstop
British Airways Logo
4:45 pm - 11:30 amSAN  San Diego-LHR London Heathrow
10h 45mnonstop
$840British Airways
Tue, Oct 6 - Tue, Oct 20
British Airways Logo
11:35 am - 2:55 pmLHR  London Heathrow-SAN San Diego
11h 20mnonstop
British Airways Logo
1:12 pm - 10:50 amSAN  San Diego-LHR London Heathrow
13h 38m1 stop Chicago O'Hare Intl
$840British Airways
Wed, Oct 28 - Tue, Nov 3
American Airlines Logo
12:45 pm - 5:10 pmLHR  London Heathrow-SAN San Diego
11h 25mnonstop
American Airlines Logo
10:12 am - 8:35 amSAN  San Diego-LHR London Heathrow
14h 23m1 stop Chicago O'Hare Intl
$903American Airlines
Wed, Oct 28 - Mon, Nov 2
American Airlines Logo
12:45 pm - 5:10 pmLHR  London Heathrow-SAN San Diego
11h 25mnonstop
American Airlines Logo
10:35 pm - 6:45 amSAN  San Diego-LHR London Heathrow
24h 10m1 stop Miami
$903American Airlines
Wed, Oct 28 - Tue, Nov 3
American Airlines Logo
12:45 pm - 5:10 pmLHR  London Heathrow-SAN San Diego
11h 25mnonstop
American Airlines Logo
6:00 pm - 12:40 pmSAN  San Diego-LHR London Heathrow
10h 40mnonstop
$903American Airlines
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 round-trip flight from London to San Diego?

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

Flight prices are below average for this route right now.

Flights to San Diego from London usually cost between $873 and $1,218 in October.
The lowest price found in the past 5 days was $792 on Multiple Airlines (Oct 1-Dec 8).

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 $953 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 Wednesday and more expensive on a Friday. On your return trip to London, you should consider flying back on a Wednesday, and avoid Saturdays 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 $709 (return) on average. On the other hand, the most expensive months are July and December, where the average cost of round-trip tickets is $1,162 and $1,112 respectively.

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

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.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 2 stops layover the cheapest option at $1,092 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 2 weeks before departure, which saves you about 38% 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
Marisa Garcia

Marisa Garcia

Expert on Iberia

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Duncan Madden

Duncan Madden

Expert on British Airways and LHR

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.

Harriet Baskas

Harriet Baskas

Expert on American Airlines

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Brandon Schultz

Brandon Schultz

Expert on SAN

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Good to know

Low season

February

Cheapest flight

$564
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly and prices are also 6% 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 round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips 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.

  • 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 $564 for a one-way ticket and $792 for a round-trip.

  • Do I need a passport to fly between London and San Diego?

    A passport is required to fly from London to San Diego.

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

    There are 2 airports in London (London Gatwick and London Heathrow.) 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?

    oneworld is the only airline alliance operating flights between London and San Diego.

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

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

  • Which is the best airline for flights from London to San Diego, United Airlines or American Airlines?

    The two airlines most popular with KAYAK users for flights from London to San Diego are United Airlines and American Airlines. With an average price for the route of $905 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $890 and an overall rating of 7.1.

  • 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 round-trip 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? 25% of our users found flights on this route for $613 or less one-way and $1,355 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.

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 3 airlines serving 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 10097 reviews
7.1Entertainment
7.7Boarding
7.3Comfort
8.1Crew
6.7Food
Airline reviews

Delayed 2 hours while stuck on the aircraft. If the luggage was properly loaded the first time we probably wouldn’t have been delayed at all

8.0 ExcellentSheldon, Jul 2026
Read more United Airlines reviews

Delayed 2 hours while stuck on the aircraft. If the luggage was properly loaded the first time we probably wouldn’t have been delayed at all

UA594 was delayed multiple times. I ended up getting picked up so I can make it in time for work 6AM on Monday, 7/6/2026

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

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

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.

I was sent an email that said my card payment was not verified. When I spoke to an agent , he said my card was not verified and the flight I thought I had to booked was no longer available so I booked another flight on another airline(United). Later I got flight updates , etc., concerning my supposed first flight. So if I was charged for this flight on British Airways/American airlines, I need a refund.

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.

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.

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

Information on your arrival and departure airports