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LON - SFO

$611 Find cheap flights from London to San Francisco

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 21/9. 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
Sat 15/6
Sat 22/6

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 42,211,976 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
20:30 - 15:30LHR-SFO
26h 00m1 stop
16:20 - 19:30SFO-LHR
19h 10m1 stop
$735Scandinavian Airlines
Find Deal
Thu, 31 Oct - Thu, 14 Nov
06:40 - 15:30LHR-SFO
15h 50m1 stop
16:20 - 16:00SFO-LHR
15h 40m1 stop
$739Scandinavian Airlines
Find Deal
Thu, 31 Oct - Thu, 14 Nov
11:45 - 14:45LHR-SFO
11h 00mdirect
17:01 - 11:20SFO-LHR
10h 19mdirect
$780Delta
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Tue, 10 Sep - Sun, 22 Sep
17:20 - 20:20LHR-SFO
11h 00mdirect
15:45 - 10:00SFO-LHR
10h 15mdirect
$783Delta
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Wed, 11 Sep - Tue, 12 Nov
18:45 - 14:05LHR-SFO
27h 20m1 stop
16:40 - 21:35SFO-LHR
20h 55m1 stop
$789TAP AIR PORTUGAL
Find Deal
Mon, 21 Oct - Wed, 6 Nov
16:25 - 14:35LGW-SFO
30h 10m1 stop
16:40 - 15:45SFO-LGW
15h 05m1 stop
$792TAP AIR PORTUGAL
Find Deal
Wed, 23 Oct - Fri, 8 Nov
11:45 - 14:45LHR-SFO
11h 00mdirect
17:01 - 11:20SFO-LHR
10h 19mdirect
$796Virgin Atlantic
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Tue, 10 Sep - Mon, 23 Sep
11:45 - 14:45LHR-SFO
11h 00mdirect
17:01 - 11:20SFO-LHR
10h 19mdirect
$802Virgin Atlantic
Find Deal
Tue, 10 Sep - Mon, 23 Sep
07:50 - 16:15LHR-SFO
15h 25m1 stop
16:30 - 10:55SFO-LHR
10h 25mdirect
$867British Airways
Find Deal
Sun, 27 Oct - Mon, 11 Nov
08:50 - 15:50LHR-SFO
15h 00m1 stop
16:30 - 10:55SFO-LHR
10h 25mdirect
$868British Airways
Find Deal
Sun, 8 Sep - Sun, 17 Nov

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 $423 and was between London Gatwick Airport and San Francisco. On average, the best prices are found if you fly this route.

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

The average price of all flights from London to San Francisco clicked on KAYAK for each day over the last 12 months.
For London to San Francisco, Tuesday is the cheapest day to fly on average and Saturday is the most expensive. Flying from San Francisco back to London, the best deals are generally found on Monday, with Sunday being the most expensive.

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 $793 on average. On the other hand, the most expensive months are July and August, where the average cost of tickets is $1,319 and $1,251 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 57 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 3 days, WestJet offered the best one-way deal for that route, at $741. KAYAK users also found London to San Francisco return flights on Scandinavian Airlines from $735 and on Delta from $780.

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.

Which airlines fly direct between London and San Francisco?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from London to San Francisco.
There are 3 airlines that fly direct from London to San Francisco. They are: British Airways, United Airlines and Virgin Atlantic. The cheapest price of all airlines flying this route was found with Virgin Atlantic at $842 for a one-way flight. On average, the best prices for this route can be found at British Airways.

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 16:00 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 is only one cabin class option available for the route, which is 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?

Direct flights from London generally make it to San Francisco in 11h 00m. The flying distance between the two cities is 13,878 km.

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

January

High season

July
Best time to beat the crowds (13% 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 $408 for a one-way ticket and $491 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.

  • Which is the best airline for flights from London to San Francisco, Virgin Atlantic or British Airways?

    The two airlines most popular with KAYAK users for flights from London to San Francisco are Virgin Atlantic and British Airways. With an average price for the route of $1,061 and an overall rating of 7.7, Virgin Atlantic is the most popular choice. British Airways is also a great choice for the route, with an average price of $1,045 and an overall rating of 6.8.

  • 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 $532 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

Top airlines flying from London to San Francisco

 
See real verified KAYAK customer reviews for airlines flying from London to San Francisco. 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 Francisco? 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.
7.7
Virgin AtlanticOverall score based on 735 reviews
8.3Crew
7.8Boarding
7.4Comfort
7.1Food
7.7Entertainment
Airline reviews

Cabin crew on our flight showed lack of any customer service gruff and acting annoyed if you asked anything and I mean anything Example a man on the seat over dropped his beer on my husbands blanket We asked if we could switch out blankets cabin crew Said. No we don’t have any extras OK well can you take the wet one Cabin crew looked disgusted and annoyed Took it no OK or yes just a growl

6.0 GoodSonia, Apr 2024LAX - LHR
Read more about Virgin Atlantic reviews

Cabin crew on our flight showed lack of any customer service gruff and acting annoyed if you asked anything and I mean anything Example a man on the seat over dropped his beer on my husbands blanket We asked if we could switch out blankets cabin crew Said. No we don’t have any extras OK well can you take the wet one Cabin crew looked disgusted and annoyed Took it no OK or yes just a growl

Quick flight. But cabin crew were very noisy and talking too much, especially when we were seated at the back of the plane trying to sleep through the night .

My ticket was for Premium Economy and all the seats were taken, I was placed in Economy class and I’m looking for a refund.

Unfortunately delayed 2 hrs due to faulty tyre.. which had to be changed, but better safe than sorry.

The delay was an issue. Other than that. Every thing good

Hi vergin Atlantic service was good but the flight ticket agent travel up charge me extra 57 pounds as a airport charges, actually I refuse to pay but they say if I not pay £57 then they say you will not be able to travel from Heathrow to goa ,so for me there was no option and it was just 3 day before my departure so i paid, so please look in to the matter. And I have a receipt of £ 57 as well .thanks

Staff didn’t check cabin well for landing seemed more interested in chatting to each other. Food was poor and differed from pre order.

We were in the last group to be called to the flight - which was 30 minutes late taking off. While we were lucky enough to have been given bulkhead seats (due to a medical condition I’d told them about beforehand) the seats weren’t particularly comfortable. A crying baby for the whole trip made things worse, so the crew managed very well with coping. The final thing I’d say was that there wasn’t enough food served during the flight.

Very good. Glad we had Premium for the flight out.

We flew Upper Class from London to The Turks and Caicos. Check in was amazing. Our ldriver too us directly to a special entrance to terminal 3. It took 10 minutes to check in and clear customs. Amazing! The VA lounge is large and comfortable. Boarding the flight was easy and without a wait. The crew was excellent. But the seats were awful, strange and uncomfortable. Having a comfortable flat bed seat is the reason we pays 1000s extra. The VA 787 uses a reverse herringbone configuration. Look it up. You have your back to the window and are facing the aisle with no privacy. Turning the seat into a bed requires assistance from the crew so not very spontaneous. . The food was ok. A bit tasteless and meager portions. Had to pay for WiFi. I believe VA has other configuration on their dream airbus flights. Lots of stuff about all this on YouTube where you can see what I have been describing. I can not recommend taking VA on a long flight with these seats.

Boarding good. Seats uncomfortable when lie flat. Food was awful. Tasted stale and chicken was dry. No live tv or flight map. Had to pay for internet.

Poor technical details on this plane. 1) There was no WiFi on an 8 hour long-haul flight. So no work could be done. That's below the standard expected for airlines these days. 2) The power outlet at my seat was busted and not working. 3) The headphone jack was loose and I had to keep adjusting my headphones to get good reception, or when it slipped out. - The flight was delayed to due mechanics. Sometimes this can't be avoided, I understand, and it's a big inconvenience to arrive that much later when traveling across time zones (then arriving at 4am from the prior time zone). - Also unique to this flight, the northern lights were visible on the right side of the aircraft, but I only found out after we landed (b/c again no wifi). I understand there are considerations about people being out of their seats to look, but I feel extremely disappointed and resentful that I wasn't told so that I could have a chance to look at this probably once-in-a-lifetime cosmic event from a view in the sky. - Flight crew was otherwise friendly and helpful.

I would have preferred something lighter for the second meal. Maybe a small sandwich .

They cancelled our flight the morning of departure at 4:30am.

Coach seats are too tight. Seem designed for small people. Food different but OK. Staff helpful.

my original flight was cancelled the previous day, and i was rescheduled onto this flight, which left much earlier in the morning, impacting my previous evening and requiring me to get up much earlier in the morning to get to the airport online. This practice happens way way way too much, and it seems on every airline, though AA is probably the worst.

The crew was very attentive and kept busy serving a variety of treats!

Offered vegetable curry when it was actually tofu which I don’t care for.

The flight was good the crew excellent…but take off delayed three hours!!!

Both mine and my husband's chairs were broken. Also it took 2 hours to get our bags after our flight which was wild.

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.
21/9Sat
1 stop
29h 20mLHR-SFO
$611
17/6Mon
1 stop
26h 30mLGW-SFO
$632
16/7Tue
2 stopsWestJet
34h 32mLGW-SFO
$741
16/7Tue
2 stopsWestJet
33h 00mLGW-SFO
$772
31/10Thu
1 stopTAP AIR PORTUGAL
30h 20mLGW-SFO
$837
27/10Sun
1 stopTAP AIR PORTUGAL
28h 15mLHR-SFO
$840
10/7Wed
1 stopJetBlue
21h 14mLGW-SFO
$1,129
17/6Mon
1 stopJetBlue
20h 04mLHR-SFO
$1,182
31/10Thu
directBritish Airways
11h 20mLHR-SFO
$1,868
20/8Tue
1 stopBritish Airways
14h 45mLCY-SFO
$1,946

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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.
17/5Fri
multi-stopDelta
13h 15mLHR-SFO
20/5Mon
multi-stopDelta
13h 25mSFO-LHR
$918
17/5Fri
multi-stopDelta
13h 15mLHR-SFO
20/5Mon
directDelta
10h 19mSFO-LHR
$919
18/5Sat
directUnited Airlines
10h 55mLHR-SFO
21/9Sat
directUnited Airlines
10h 20mSFO-LHR
$997
17/5Fri
directUnited Airlines
11h 00mLHR-SFO
25/6Tue
multi-stopUnited Airlines
14h 10mSFO-LHR
$1,001
21/5Tue
multi-stopBritish Airways
17h 05mLHR-SFO
23/6Sun
multi-stopBritish Airways
17h 10mSFO-LHR
$1,045
18/5Sat
multi-stopBritish Airways
16h 10mLHR-SFO
24/6Mon
multi-stopBritish Airways
14h 10mSFO-LHR
$1,055
20/5Mon
multi-stopScandinavian Airlines
17h 10mLHR-SFO
26/6Wed
multi-stopScandinavian Airlines
16h 00mSFO-LHR
$1,069
18/5Sat
multi-stopVirgin Atlantic
18h 21mLHR-SFO
3/6Mon
multi-stopVirgin Atlantic
14h 10mSFO-LHR
$1,076
20/5Mon
multi-stopScandinavian Airlines
16h 45mLHR-SFO
23/6Sun
multi-stopScandinavian Airlines
16h 00mSFO-LHR
$1,112
18/5Sat
directVirgin Atlantic
11h 00mLHR-SFO
3/6Mon
directVirgin Atlantic
10h 20mSFO-LHR
$1,223

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Flights to San Francisco

Destination:

San Francisco (SFO)United States

Return flight deals:

San Francisco - London

Cabin classes:

$6,391
$1,645
$916

Browse origins:

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  • London

Browse destinations:

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