SAN - LON

£425 Find Cheap Flights from San Diego to London – 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 San Diego to London departing on 14/8. 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 London

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Diego to London, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Diego to London, as well as popular online travel agencies
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Everything you should know

Cheapest return fare
£776
Typical prices: £718-£494
Multiple Airlines
Thu 20/8Sun 13/9
SAN - LHR • 2 stops
Cheapest direct flights
£776
Typical prices: £691-£486
British Airways
Thu 24/9Sat 3/10
SAN - LHR • Direct
Top airlines
Cheapest • from £777 (return)
Best reviews • 6.7 score
Airline reviews
Airline reviews
+1
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Airline reviews
Airline reviews
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Direct flights
You can fly direct with British Airways. Average duration is 10h 42m
Direct flights
Direct flights
+1
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Direct flights
Direct flights
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Top routes
Cheapest
Most popular
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 2 weeks in advance save around 25% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 76% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
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Flight Deals

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

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

Thu, 20 Aug - Sun, 13 Sep
Multiple Airlines Logo
09:37 - 11:55
SAN
-
LHR
18h 18m
2 stops
Multiple Airlines Logo
07:25 - 15:25
LHR
-
SAN
16h 00m
1 stop
£776Multiple Airlines
Thu, 27 Aug - Sat, 5 Sep
Delta Logo
13:34 - 14:00
SAN
-
LHR
16h 26m
1 stop
Delta Logo
06:30 - 11:50
LHR
-
SAN
13h 20m
1 stop
£777Delta
Fri, 25 Sep - Sat, 3 Oct
Scandinavian Airlines Logo
07:00 - 16:00
SAN
-
LHR
25h 00m
2 stops
Scandinavian Airlines Logo
06:40 - 23:42
LHR
-
SAN
25h 02m
3 stops
£777Scandinavian Airlines
Tue, 4 Aug - Wed, 12 Aug
JetBlue Logo
10:20 - 09:35
SAN
-
LGW
15h 15m
1 stop
JetBlue Logo
12:20 - 11:56
LGW
-
SAN
31h 36m
1 stop
£777JetBlue
Wed, 26 Aug - Tue, 1 Sep
Scandinavian Airlines Logo
10:55 - 16:00
SAN
-
LHR
21h 05m
3 stops
Scandinavian Airlines Logo
06:40 - 22:49
LHR
-
SAN
24h 09m
2 stops
£778Scandinavian Airlines
Mon, 7 Sep - Mon, 5 Oct
SWISS Logo
06:18 - 12:35
SAN
-
LCY
22h 17m
2 stops
SWISS Logo
19:15 - 18:40
LCY
-
SAN
31h 25m
2 stops
£779SWISS
Tue, 11 Aug - Tue, 18 Aug
SWISS Logo
06:40 - 12:35
SAN
-
LCY
21h 55m
2 stops
SWISS Logo
19:15 - 18:30
LCY
-
SAN
31h 15m
2 stops
£780SWISS
Wed, 26 Aug - Wed, 2 Sep
JetBlue Logo
10:20 - 09:35
SAN
-
LGW
15h 15m
1 stop
JetBlue Logo
12:20 - 09:10
LGW
-
SAN
28h 50m
1 stop
£780JetBlue
Sun, 23 Aug - Mon, 14 Sep
British Airways Logo
15:05 - 12:50
SAN
-
LHR
13h 45m
1 stop
British Airways Logo
11:35 - 14:55
LHR
-
SAN
11h 20mdirect
£781British Airways
Sat, 1 Aug - Mon, 31 Aug
British Airways Logo
16:45 - 11:30
SAN
-
LHR
10h 45mdirect
British Airways Logo
14:30 - 17:50
LHR
-
SAN
11h 20mdirect
£783British Airways
Booking Insights

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

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

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

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

What is the cheapest San Diego to London flight route?

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

The cheapest return flight from San Diego to London costs £692 on the route between San Diego (SAN) and London Heathrow Airport (LHR). It is also the most popular route.

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

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

For San Diego to London, Tuesday is the cheapest day to fly on average and Friday is the most expensive. Flying from London back to San Diego, the best deals are generally found on Monday, with Saturday being the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Diego to London, 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 San Diego to London is May, where tickets cost £76 (return) on average. On the other hand, the most expensive months are June and April, where the average cost of round-trip tickets is £544 and £425 respectively.

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

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 1 stop stopover the cheapest option at £718 on average.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San Diego to London, 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 San Diego to London, you should book around 2 weeks before departure, which saves you about 25% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.

Expert advice

Expert advice for your flight from San Diego to London

 
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
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.

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, specialising in airline interiors and regulations. 10 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

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.

Good to know - Cheap tickets from San Diego to London

Low seasonJanuary
Cheapest flight£425
Best time to beat the crowds (17% less expensive on average)
Most popular time to fly and prices are also 18% lower on average.
Flight from San Diego to London Gatwick Airport

When to book flights from San Diego to London

Are your dates flexible? Find out the best times to travel from San Diego to London 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 San Diego to London

  • Are the nonstop flights from San Diego to London?

    Unfortunately, there are no nonstop flights from San Diego to London. United Airlines operates a flight with only one stop, either in Newark (EWR) or Chicago O'Hare (ORD). Delta Air Lines also operates a flight route with a stop in Atlanta Hartsfield-Jackson (ATL). Depending on the length of your stop, flight times vary between 15h 25min and 18h 30min.

  • Does San Diego Airport have lounges?

    All lounges at the San Diego Airport are located in Terminal 2. Both Delta Air Lines and United Airlines have lounges for their passengers, the Delta Sky Club, and the United Club. If you're not flying with Delta or United, check out the Airspace Lounge, which you can enter for about $25.

  • What is a quick way to get from London Heathrow to London’s city center?

    You can either take the Piccadilly Line of the subway, known locally as the "tube", which is great for central locations as well as the West End, or the Heathrow Express to Paddington Station on the national rail service if you’re staying in Paddington or Bayswater. Tickets for both trips can be booked online in advance of your journey, and note that fares will depend significantly on the time and date of travel.

  • Are there are any on-site hotels at Heathrow Airport?

    There are four on-site hotels, depending on the terminal you are traveling from. Aerotel is connected to Terminal 2. The Hilton and YOTEL are connected to Terminal 4. The Hilton is equipped with three restaurants as well as business and fitness centers, while YOTEL has 32 cabins which can be booked by the hour. Sofitel is connected to Terminal 5 and has two restaurants as well as conference facilities.

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

    In the last 3 days, the lowest price for a flight from San Diego to London was £425 for a one-way ticket and £776 for a return.

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

    When flying out of San Diego you will be using San Diego. You will be landing at one of these airports: London Gatwick, London Heathrow, or London Stansted.

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

    All the following airlines offer inflight Wi-Fi service on the San Diego to London flight route: British Airways, Finnair, Iberia, American Airlines, Lufthansa, United Airlines, Vueling, and KLM.

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

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

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

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

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

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

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

    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 San Diego to London.

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

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

    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 London with an airline and back to San Diego with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Diego to London?

    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 London from San Diego 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 San Diego to London

  • Looking for a cheap flight from San Diego to London? 25% of our users found flights on this route for £320 or less one-way and £800 or less round-trip.
  • San Diego has only one major airport to depart from, San Diego International Airport (SAN), which is conveniently located just 3 miles northwest of Downtown San Diego. San Diego Airport has lots of shopping and dining options while you’re waiting for your flight. Dining concessions include both local and national brands. Shopping concessions range from boutiques and gift shops. In addition, if you have extra time, book a treatment at one of the two airport spas or head to one of the terminal’s lounges to relax or catch a bite.
  • Alternatively, London has six different airports to choose from. London Heathrow (LHR) is the city’s busiest airport and has the largest offering of international flights. The airport’s four terminals are also well connected to the city center, about 15 miles west, both by subway and national rail. Heathrow is also one of the busiest, with long lines for customs.
  • Most flights from San Diego also fly into Heathrow. Get the Heathrow Airport Guide App on your phone before your travel for easy navigation and more travel tips.
  • London Gatwick (LGW) is another popular airport and is generally less crowded than Heathrow. It is located 29 miles south of London. The airport also offers Premium Passport control services for an expedited border control lane. Gatwick is well connected by rail service.
  • London City (LCY) is the closest airport to central London, just 7 miles east. However, this airport typically only offers short-distance flights catering to business travelers.
  • London Luton (LTN), London Stansted (STN), and London Southend (SEN) are further away from the city center but are also the gateways for cheap flights around Europe, serving airlines like Ryanair, easyJet, and Wizz Air.

Prefer to fly direct from San Diego to London?

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

Direct departures

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

Direct returns

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

Reviews of the top airline flying from San Diego to London

 
See real verified KAYAK customer reviews for airlines flying from San Diego to London. 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 San Diego to London? 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.
6.7
British AirwaysOverall score based on 8050 reviews
6.8Comfort
7.7Crew
6.9Boarding
6.4Food
6.4Entertainment
Airline reviews

Boarding process was chaotic. Confusion over Boarding gates: gate 55 or gate 56 ???. Unnecessary standing in long lines to board. Better to call out Boarding groups one at a time and everyone else to sit. Airline only has 2 Boarding groups 1-3 and 4-9. That causes over crowding and chaos

8.0 ExcellentMohit, May 2026
PHL - LHR
Read more British Airways reviews

Boarding process was chaotic. Confusion over Boarding gates: gate 55 or gate 56 ???. Unnecessary standing in long lines to board. Better to call out Boarding groups one at a time and everyone else to sit. Airline only has 2 Boarding groups 1-3 and 4-9. That causes over crowding and chaos

Lady next to me was coughing profusely the entire flight, other lady moved seats because of it, 8 hours of that during an overnight flight is a bit much.

3.5 hr delay leaving Pittsburgh, notifications for which were incomplete and untimely. Connecting flight was automatically switched to one requiring more than a 30 hour layover! After waiting in a long queue, customer service reduced layover to 11 hours and also set up an earlier standby. The standby had empty seats, but the gate agent couldn't change our tickets! On top of all that my luggage was lost and has yet to even be located, much less returned 5 (FIVE!) days later. Too bad there's no rating below poor.

Canceled flight late London to Florence. Help at airport very poor. Treated poorly. Had to sleep in the airport. Lost bags- still do not have them. Horrible. I should be reimbursed!

The seats are extra cramped if you are taller than 5’8! Spring for the extra legroom seats for sure if you have a long flight!

Very disappointed with British Airways. It has been over 24 hours and I still have not received my checked baggage or any proper update. Customer support has been unresponsive, making the situation even more frustrating. Poor baggage handling and lack of communication seriously impacted my travel experience.

Boarding was orderly, pilot and flight attendants were nice, entertainment options were good, and low sodium meals were quite tasty.

Flight delayed, connection was not at gate listed and so missed, staff were rude at Heathrow, phone tree stupid and difficult, took me 21 actual hours to reach my destination. Almost lost my hotel reservation after walking in a strange city alone after midnight because they would not put me up in a hotel at sfo or heathrow. I will never fly BA again and will tell all people and Instagram followers never to fly BA.

Wish the food and overall service was better. They treat Business class passengers same as economy

They had us seating down for one hour just waiting on the plane

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

Information on your arrival and departure airports