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LON - SFO

Find cheap flights from London to San Francisco from €372

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 Francisco departing on 2/10. 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
0 bags
Sun 26/5
Sun 2/6

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 44,335,567 times on KAYAK, and here's why:

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

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from London to San Francisco 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 and deals for you by selecting your travel dates.
Choose your dates
06:30 - 11:45LHR-SFO
13h 15m1 stop
22:10 - 16:30SFO-LHR
10h 20mdirect
€480Delta
Find Deal
Thu, 12 Sep - Sun, 22 Sep
10:10 - 13:15LHR-SFO
11h 05mdirect
15:30 - 10:00SFO-LHR
10h 30mdirect
€481British Airways
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Fri, 20 Sep - Mon, 30 Sep
06:30 - 11:45LHR-SFO
13h 15m1 stop
16:40 - 14:50SFO-LHR
14h 10m1 stop
€489KLM
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Thu, 9 May - Thu, 16 May
09:30 - 16:00LHR-SFO
14h 30m1 stop
00:35 - 07:40SFO-LHR
23h 05m1 stop
€494United Airlines
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Thu, 12 Sep - Sat, 21 Sep
10:10 - 13:15LHR-SFO
11h 05mdirect
12:46 - 10:30SFO-LHR
13h 44m1 stop
€495Finnair
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Thu, 9 May - Tue, 21 May
10:10 - 13:15LHR-SFO
11h 05mdirect
15:30 - 10:00SFO-LHR
10h 30mdirect
€496Finnair
Find Deal
Tue, 24 Sep - Sun, 6 Oct
06:00 - 14:35LHR-SFO
16h 35m1 stop
16:20 - 17:45SFO-LHR
17h 25m1 stop
€506TAP AIR PORTUGAL
Find Deal
Thu, 26 Sep - Sun, 6 Oct
19:50 - 14:05LHR-SFO
26h 15m1 stop
16:40 - 17:30SFO-LHR
16h 50m1 stop
€507TAP AIR PORTUGAL
Find Deal
Mon, 21 Oct - Mon, 4 Nov
12:20 - 15:20LHR-SFO
11h 00mdirect
07:30 - 11:25SFO-LHR
19h 55m1 stop
€551United Airlines
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Tue, 7 May - Thu, 13 Jun
06:30 - 11:45LHR-SFO
13h 15m1 stop
10:50 - 07:15SFO-LHR
12h 25m1 stop
€563KLM
Find Deal
Thu, 30 May - Sun, 21 Jul

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 €528 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 €1,644.

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 €458 on average. On the other hand, the most expensive months are July and August, where the average cost of tickets is €776 and €722 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 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 42 days before departure.

Which airlines provide the cheapest flights from London to San Francisco?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the best return deals on flights connecting London to San Francisco were found on Delta (€480) and British Airways (€481). WestJet proposed the cheapest one-way flight at €482.

Which airlines fly most frequently between London and San Francisco?

British Airways connects London to San Francisco with up to 4 flights per day. United Airlines also offers 3 flights per day, while Virgin Atlantic follows with 3 flights per day.

How many flights are there between London and San Francisco per day?

Each day, there are between 10 and 11 nonstop flights that take off from London and land in San Francisco, with an average flight time of 11h 01m. The most common departure time is 10:00 and most flights take off in the morning. Each week, there are 71 flights. The most frequent day of departure is Friday, when 15% of all weekly flights depart. The fewest flights depart on a Sunday.

Which cabin class options are there for flights between London and San Francisco?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There are 2 cabin class options for the route. These are Business and Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from London to San Francisco take?

A direct flight to San Francisco will take on average 11h 00m to travel the 13,878 km flying distance from London.

What’s the earliest departure time from London to San Francisco?

Early birds can take the earliest flight from London at 10:10 and will be landing in San Francisco at 13:15.

What’s the latest departure time from London to San Francisco?

If you prefer to fly at night, the latest flight from London to San Francisco jets off at 17:20 and lands at 20:20.

Good to know

Low season

November

High season

July
Best time to beat the crowds (12% less expensive on average)
Most popular time to fly (36% 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 €399 for a one-way ticket and €514 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

Top tips for finding a cheap flight from London to San Francisco

  • Looking for a cheap flight? 25% of our users found flights on this route for €528 or less one-way.
  • 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

Prefer to fly direct from London to San Francisco?

Find which airlines fly direct from London to San Francisco, 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.
2/10Wed
1 stop
29h 20mLHR-SFO
€372
5/6Wed
1 stop
29h 05mLHR-SFO
€378
14/9Sat
1 stop
29h 20mLHR-SFO
€383
9/5Thu
1 stopWestJet
15h 03mLHR-SFO
€482
29/8Thu
1 stopTAP AIR PORTUGAL
26h 45mLHR-SFO
€518
12/9Thu
1 stopTAP AIR PORTUGAL
16h 35mLHR-SFO
€535
4/5Sat
2 stopsWestJet
56h 24mLHR-SFO
€622
19/6Wed
1 stopJetBlue
20h 04mLHR-SFO
€848
12/5Sun
1 stopTurkish Airlines
37h 15mLHR-SFO
€867
12/8Mon
1 stopJetBlue
19h 49mLHR-SFO
€885

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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.
29/4Mon
directDelta
11h 00mLHR-SFO
12/5Sun
directDelta
10h 19mSFO-LHR
€532
1/5Wed
directDelta
11h 00mLHR-SFO
8/5Wed
directDelta
10h 19mSFO-LHR
€533
30/4Tue
multi-stopBritish Airways
17h 05mLHR-SFO
7/12Sat
directBritish Airways
10h 25mSFO-LHR
€536
29/4Mon
multi-stopScandinavian Airlines
17h 10mLHR-SFO
6/5Mon
multi-stopScandinavian Airlines
14h 20mSFO-LHR
€546
28/4Sun
multi-stopBritish Airways
17h 05mLHR-SFO
7/5Tue
multi-stopBritish Airways
13h 10mSFO-LHR
€550
30/4Tue
multi-stopScandinavian Airlines
16h 45mLHR-SFO
7/12Sat
multi-stopScandinavian Airlines
14h 30mSFO-LHR
€569
27/4Sat
directUnited Airlines
11h 00mLHR-SFO
11/5Sat
directUnited Airlines
10h 25mSFO-LHR
€574
27/4Sat
directUnited Airlines
11h 00mLHR-SFO
7/5Tue
directUnited Airlines
10h 25mSFO-LHR
€576
30/4Tue
multi-stop
14h 30mLHR-SFO
11/7Thu
multi-stop
13h 45mSFO-LHR
€608
29/4Mon
multi-stop
19h 52mLHR-SFO
3/5Fri
multi-stop
18h 49mSFO-LHR
€1,168

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Flights to San Francisco

Destination:

San Francisco (SFO)United States

Cabin classes:

€3,144
€1,644

Browse origins:

  • Flights » 
  • London

Browse destinations:

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  • San Francisco