LON - SFO

€449 Find cheap flights from London to San Francisco

This is the cheapest return flight price found by a KAYAK user in the last 72 hours by searching for a flight from London to San Francisco departing on 16/1. 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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Search hundreds of travel sites at once for deals on flights to San Francisco

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to San Francisco, 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 London to San Francisco, as well as popular online travel agencies
In the last 7 days, travellers have searched 46,646,933 times on KAYAK, and here's why:

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Cheap flight deals from London to San Francisco (LON-SFO)

 
These are the cheapest deals for flights from London to San Francisco currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent return flight deals from London to San Francisco

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from London to San Francisco.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
19:55 - 14:15LHR-SFO
26h 20m1 stop
16:40 - 17:30SFO-LHR
16h 50m1 stop
€449TAP AIR PORTUGAL
Find Deal
Thu, 16 Jan - Sat, 25 Jan
13:40 - 14:55LHR-SFO
33h 15m1 stop
16:40 - 21:35SFO-LHR
20h 55m1 stop
€457TAP AIR PORTUGAL
Find Deal
Fri, 17 Jan - Mon, 20 Jan
19:30 - 15:40LHR-SFO
28h 10m1 stop
17:30 - 18:50SFO-LHR
17h 20m2 stops
€507Scandinavian Airlines
Find Deal
Thu, 16 Jan - Sat, 25 Jan
19:50 - 15:40LHR-SFO
27h 50m2 stops
17:30 - 18:50SFO-LHR
17h 20m2 stops
€510Scandinavian Airlines
Find Deal
Thu, 16 Jan - Sat, 25 Jan
06:30 - 11:50LHR-SFO
13h 20m1 stop
16:40 - 10:55SFO-LHR
10h 15mdirect
€578Delta
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Thu, 27 Feb - Thu, 6 Mar
13:00 - 20:21LHR-SFO
15h 21m1 stop
17:25 - 12:00SFO-LHR
10h 35mdirect
€579United Airlines
Find Deal
Mon, 17 Feb - Mon, 24 Feb
06:20 - 13:10LHR-SFO
14h 50m1 stop
17:40 - 10:55SFO-LHR
10h 15mdirect
€582Delta
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Wed, 5 Mar - Sun, 9 Mar
08:55 - 16:25LHR-SFO
15h 30m1 stop
00:30 - 07:30SFO-LHR
23h 00m1 stop
€585United Airlines
Find Deal
Fri, 6 Dec - Wed, 11 Dec
11:40 - 14:45LHR-SFO
11h 05mdirect
06:15 - 07:05SFO-LHR
16h 50m1 stop
€586Virgin Atlantic
Find Deal
Fri, 17 Jan - Mon, 20 Jan
11:40 - 14:45LHR-SFO
11h 05mdirect
16:40 - 10:55SFO-LHR
10h 15mdirect
€642Virgin Atlantic
Find Deal
Thu, 5 Dec - Thu, 12 Dec

Flights from London to San Francisco - Travel Insights & Trends

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

What is the cheapest London to San Francisco flight route?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for one-way flights from London to San Francisco.
Our data shows that the cheapest route for a one-way flight from London to San Francisco cost €722 and was between London Heathrow Airport and San Francisco. On average, the best prices are found if you fly this route. The average price for a return flight for this route is €600.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from London to San Francisco, 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 Francisco is February, where tickets cost €508 on average. On the other hand, the most expensive months are July and August, where the average cost of tickets is €854 and €854 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from London to San Francisco, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from London to San Francisco, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 121 days before departure.

Good to know

Low season

January

High season

July
Best time to beat the crowds (11% less expensive on average)
Most popular time to fly (34% more expensive on average)

When to book flights from London to San Francisco

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

  • Is there a rail service linking San Francisco airport to the city centre?

    The BART rail service links San Francisco airport with the city centre, running from 8am to midnight every day, with a frequency of every 20 mins. The BART also links the airport to the East Bay and San Mateo County. The SFO BART Station is located at the International Terminal in departures. To reach it from other terminals you can take the SFO AirTrain which links all terminals to each other. You can purchase a ticket at the BART station.

  • What bus services are available at San Francisco airport?

    SamTrans buses link San Francisco airport to the city centre, Palo Alto and San Mateo County. Lines stopping at the airport are SFO, ECR, 292, 397 and 398. It’s a 24-hour bus service, and you can hop on outside of Arrivals at Terminal 2 and 3, outside of International Terminal Level 1 and Curbside.

  • Are there any onsite airport hotels available at San Francisco airport?

    There are nap rooms available inside San Francisco airport, in the international terminal which are open 24 hours. The rate is $40 USD (about 32 GBP) per hour or $120 USD (about 95 GBP) for 8 hours. Alternatively, there are 5 hotels all within 5 minutes from the airport, and all offering free airport shuttle service.

  • Where can I have a shower at San Francisco airport?

    For a refreshing shower after a long flight from London to San Francisco, head to Freshen Up which is located in International Terminal level G. They are open 24 hours, and their rates start from $25 USD (about 20 GBP) for a Deluxe shower, which is a 30-minute shower and includes a towel, soap, shampoo, and other amenities on demand such as a hair dryer.

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

    In the last 3 days, the lowest price for a flight from London to San Francisco was €535 for a one-way ticket and €472 for a return.

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

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

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

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

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

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

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

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

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

    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 Francisco.

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

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

    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 Francisco 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 Francisco?

    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 Francisco from London up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

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

  • There are direct flights from London to San Francisco with Virgin Atlantic, British Airways and United airlines. All airlines offer a comfortable leg room of about 79 cm in average, and all offer on-demand video to keep passengers entertained. Virgin Atlantic and United airlines also have Wi-Fi available on board for a fee.
  • If you are flying with Air France or KLM airlines, you can head to their dedicated airline lounges in San Francisco airport for a bit of quiet space, both located in the International Terminal. KLM passengers will be happy to know that they also have a lounge in London Heathrow Airport.
  • If you have a bit of time before your flight, head to the San Francisco Airport Aviation Library and Aviation Museum, both located in the International Terminal. They are free of charge to access, and will give you an insight into the world of air transport and commercial aviation.
  • Passengers travelling with children can head to Terminals 2 and 3 for Kids’ Spots play rooms. If you need supplies for babies such as diapers, medicine and food, you will find them available at one of the News kiosks. Stroller and baby equipment are available for rent from Cloud of Goods.
  • There is never a dull moment at San Francisco airport, as you will find about 20 exhibitions on show at any one point throughout the airport. These can include photographs, paintings, installations and video arts. The Video Arts Room is located in the International Terminal and shows short films (10 minutes and less in length) from 5am to midnight, with new films showing every 4 weeks.
See more tips

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

Insights shared by verified travellers who flew the route from London to San Francisco 
Verified travelerFlew with American AirlinesLHR-SFOMar 2024
Heathrow is vast, allow plenty of time to drop bags and go through security. At San Francisco the immigration takes a bit of time and we had to wait around 1.5hrs, bare this in mind when booking car rental. The is a shuttle train from the airport to the car rental area which is very slick and efficient.
Ana-MariaFlew with IberiaLHR-SFOMar 2024
In London triple check your flight they have multiple leaving for the same destination once - it is easy to get them confused

Prefer to fly direct from London to San Francisco?

Find which airlines fly direct from London to San Francisco Airport, which days they fly and book direct flights.

Direct departures

London to San Francisco

Monday

Aer Lingus, Aeromexico, Air Canada, +15 more

Aer Lingus, Aeromexico, +16 more

Tuesday

Aer Lingus, Aeromexico, Air Canada, +15 more

Aer Lingus, Aeromexico, +16 more

Wednesday

Aer Lingus, Aeromexico, Air Canada, +15 more

Aer Lingus, Aeromexico, +16 more

Thursday

Aer Lingus, Aeromexico, Air Canada, +15 more

Aer Lingus, Aeromexico, +16 more

Friday

Aer Lingus, Aeromexico, Air Canada, +15 more

Aer Lingus, Aeromexico, +16 more

Saturday

Aer Lingus, Aeromexico, Air Canada, +15 more

Aer Lingus, Aeromexico, +16 more

Sunday

Aer Lingus, Aeromexico, Air Canada, +15 more

Aer Lingus, Aeromexico, +16 more

See more direct flights

Direct returns

San Francisco to London

Monday

Aer Lingus, Aeromexico, Air Canada, +15 more

Aer Lingus, Aeromexico, +16 more

Tuesday

Aer Lingus, Aeromexico, Air Canada, +15 more

Aer Lingus, Aeromexico, +16 more

Wednesday

Aer Lingus, Aeromexico, Air Canada, +15 more

Aer Lingus, Aeromexico, +16 more

Thursday

Aer Lingus, Aeromexico, Air Canada, +15 more

Aer Lingus, Aeromexico, +16 more

Friday

Aer Lingus, Aeromexico, Air Canada, +15 more

Aer Lingus, Aeromexico, +16 more

Saturday

Aer Lingus, Aeromexico, Air Canada, +15 more

Aer Lingus, Aeromexico, +16 more

Sunday

Aer Lingus, Aeromexico, Air Canada, +15 more

Aer Lingus, Aeromexico, +16 more

See more direct flights
See more direct flights

Book cheap flights from London to San Francisco

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from London to San Francisco found on KAYAK in the last 72 hours.
7/4Mon
1 stop
29h 10mLHR-SFO
€509
12/12Thu
1 stopTAP AIR PORTUGAL
30h 00mLHR-SFO
€525
29/11Fri
2 stopsSWISS
17h 25mLHR-SFO
€689
29/11Fri
1 stopSWISS
18h 25mLHR-SFO
€692
29/11Fri
1 stopUnited Airlines
33h 06mLHR-SFO
€700
28/11Thu
directAustrian Airlines
11h 10mLHR-SFO
€702
8/1Wed
1 stopJetBlue
21h 18mLHR-SFO
€704
27/11Wed
3 stopsUnited Airlines
21h 02mLHR-SFO
€707
8/1Wed
1 stopJetBlue
21h 13mLHR-SFO
€830
18/12Wed
directAustrian Airlines
11h 10mLHR-SFO
€11,028

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Last minute flights from London to San Francisco

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from London to San Francisco that are departing in the next 10 days.
25/11Mon
multi-stopFinnair
17h 44mLHR-SFO
10/12Tue
multi-stopFinnair
15h 51mSFO-LHR
€548
23/11Sat
multi-stopTAP AIR PORTUGAL
16h 55mLHR-SFO
6/12Fri
multi-stopTAP AIR PORTUGAL
15h 40mSFO-LHR
€556
25/11Mon
multi-stopVirgin Atlantic
13h 20mLHR-SFO
10/12Tue
directVirgin Atlantic
10h 15mSFO-LHR
€565
25/11Mon
directVirgin Atlantic
11h 05mLHR-SFO
10/12Tue
directVirgin Atlantic
10h 15mSFO-LHR
€571
26/11Tue
multi-stopScandinavian Airlines
28h 10mLHR-SFO
13/1Mon
multi-stopScandinavian Airlines
14h 30mSFO-LHR
€577
25/11Mon
multi-stopDelta
13h 20mLHR-SFO
10/12Tue
multi-stopDelta
14h 25mSFO-LHR
€582
25/11Mon
multi-stopDelta
13h 20mLHR-SFO
10/12Tue
multi-stopDelta
20h 00mSFO-LHR
€583
25/11Mon
directBritish Airways
11h 25mLHR-SFO
14/1Tue
directBritish Airways
10h 30mSFO-LHR
€585
25/11Mon
directBritish Airways
11h 25mLHR-SFO
10/1Fri
directBritish Airways
10h 30mSFO-LHR
€589
26/11Tue
multi-stopScandinavian Airlines
28h 10mLHR-SFO
14/1Tue
multi-stopScandinavian Airlines
18h 00mSFO-LHR
€626

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

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car hires and package deals with KAYAK.