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Cheap flights from London to San Francisco from $541

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London to San Francisco departing on 2/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from London to San Francisco

Cheap return flights

These are some of the best return flight deals from London to San Francisco that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from London to San Francisco.

Cheap last-minute flights

Planning a quick getaway from London to San Francisco? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to San Francisco, so you can enjoy a seamless trip without stopovers.

Cheap bus & train deals from London to San Francisco

Find recent return train or bus tickets from London to San Francisco.

All return flight deals from London to San Francisco

The cheapest plane tickets from London to San Francisco found on KAYAK recently.
09:30 - 16:00LHR-SFO
14h 30m1 stop
21:35 - 19:35SFO-LHR
15h 00m1 stop
$801Lufthansa
Find Deal
Sun, 2 Mar - Sun, 9 Mar
19:55 - 14:45LHR-SFO
26h 50m1 stop
19:15 - 22:40SFO-LHR
19h 25m1 stop
$809TAP AIR PORTUGAL
Find Deal
Sun, 16 Feb - Fri, 28 Feb
18:40 - 16:25LGW-SFO
29h 45m1 stop
19:25 - 17:50SFO-LGW
14h 25m1 stop
$814SWISS
Find Deal
Thu, 20 Feb - Wed, 26 Feb
06:30 - 11:50LHR-SFO
13h 20m1 stop
17:40 - 10:55SFO-LHR
10h 15mdirect
$816Virgin Atlantic
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Sun, 2 Mar - Sun, 9 Mar
12:05 - 16:25LHR-SFO
36h 20m1 stop
06:42 - 09:40SFO-LHR
18h 58m1 stop
$818United Airlines
Find Deal
Sat, 1 Mar - Sun, 30 Mar
18:35 - 16:10LGW-SFO
29h 35m1 stop
14:00 - 17:50SFO-LGW
19h 50m1 stop
$819SWISS
Find Deal
Wed, 23 Apr - Thu, 8 May
08:55 - 16:25LHR-SFO
15h 30m1 stop
10:50 - 10:10SFO-LHR
15h 20m1 stop
$819United Airlines
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Thu, 13 Feb - Mon, 3 Mar
11:40 - 14:45LHR-SFO
11h 05mdirect
16:40 - 10:55SFO-LHR
10h 15mdirect
$903Virgin Atlantic
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Fri, 7 Feb - Fri, 14 Feb
14:05 - 17:15LHR-SFO
11h 10mdirect
08:00 - 06:25SFO-LHR
14h 25m1 stop
$958British Airways
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Sun, 20 Apr - Sun, 27 Apr
14:45 - 21:04LHR-SFO
14h 19m1 stop
13:22 - 10:30SFO-LHR
13h 08m1 stop
$967British Airways
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Sat, 19 Apr - Sat, 3 May
10:45 - 23:14LGW-SFO
20h 29m1 stop
Fri, 2 May
07:55 - 20:10LGW-SFO
20h 15m1 stop
Sun, 2 Mar
14:50 - 13:06LHR-SFO
30h 16m1 stop
$816WestJet
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Wed, 5 Feb
11:00 - 17:15LGW-SFO
38h 15m2 stops
$832WestJet
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Wed, 18 Jun
14:50 - 14:35LGW-SFO
31h 45m1 stop
$896TAP AIR PORTUGAL
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Thu, 10 Apr
18:30 - 14:40LHR-SFO
28h 10m1 stop
$898TAP AIR PORTUGAL
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Tue, 18 Feb
08:25 - 19:24LHR-SFO
18h 59m1 stop
$1,151JetBlue
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Wed, 26 Feb
07:25 - 22:10LHR-SFO
22h 45m1 stop
$1,160JetBlue
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Wed, 23 Apr
19:05 - 16:25LCY-SFO
29h 20m2 stops
$1,991Virgin Atlantic
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Sun, 20 Apr
09:20 - 20:02LCY-SFO
18h 42m2 stops
$2,074Virgin Atlantic
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Mon, 31 Mar
09:35 - 14:15LGW-SFO
60h 40m2 stops
16:35 - 09:50SFO-LGW
33h 15m1 stop
$904TAP AIR PORTUGAL
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Wed, 22 Jan - Wed, 29 Jan
13:00 - 20:46LHR-SFO
15h 46m1 stop
11:10 - 10:50SFO-LHR
15h 40m2 stops
$912United Airlines
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Tue, 21 Jan - Tue, 28 Jan
11:40 - 14:45LHR-SFO
11h 05mdirect
16:10 - 10:30SFO-LHR
10h 20mdirect
$917Virgin Atlantic
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Mon, 20 Jan - Tue, 6 May
09:10 - 23:54LHR-SFO
22h 44m1 stop
21:20 - 15:40SFO-LHR
10h 20mdirect
$927Virgin Atlantic
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Mon, 20 Jan - Tue, 6 May
06:30 - 11:50LHR-SFO
13h 20m1 stop
13:30 - 11:10SFO-LHR
13h 40m1 stop
$932Delta
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Sat, 18 Jan - Sun, 19 Jan
11:40 - 14:45LHR-SFO
11h 05mdirect
22:50 - 06:25SFO-LHR
23h 35m1 stop
$961Delta
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Wed, 22 Jan - Sat, 25 Jan
09:25 - 16:25LCY-SFO
15h 00m1 stop
19:25 - 18:40SFO-LCY
15h 15m1 stop
$1,091SWISS
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Wed, 22 Jan - Sun, 26 Jan
18:45 - 16:25LGW-SFO
29h 40m1 stop
19:05 - 17:50SFO-LGW
14h 45m1 stop
$1,094SWISS
Find Deal
Mon, 20 Jan - Tue, 6 May
11:05 - 12:35LHR-SFO
57h 30m2 stops
20:35 - 20:50SFO-LHR
16h 15m2 stops
$1,149Brussels Airlines
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Mon, 20 Jan - Mon, 27 Jan
11:05 - 18:45LHR-SFO
39h 40m2 stops
14:40 - 21:20SFO-LHR
22h 40m2 stops
$1,178Brussels Airlines
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Mon, 20 Jan - Thu, 30 Jan
11:40 - 14:45LHR-SFO
11h 05mdirect
17:40 - 10:55SFO-LHR
10h 15mdirect
$838Virgin Atlantic
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Sun, 2 Mar - Sun, 9 Mar
10:05 - 13:15LHR-SFO
11h 10mdirect
12:50 - 07:25SFO-LHR
10h 35mdirect
$871Lufthansa
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Mon, 10 Feb - Wed, 5 Mar
11:15 - 14:20LHR-SFO
11h 05mdirect
21:20 - 15:40SFO-LHR
10h 20mdirect
$874Delta
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Sun, 20 Apr - Sat, 3 May
11:40 - 14:45LHR-SFO
11h 05mdirect
16:40 - 10:55SFO-LHR
10h 15mdirect
$875Delta
Find Deal
Wed, 29 Jan - Wed, 5 Feb
10:35 - 13:40LHR-SFO
11h 05mdirect
12:55 - 07:25SFO-LHR
10h 30mdirect
$946United Airlines
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Tue, 15 Apr - Tue, 29 Apr
16:15 - 19:20LHR-SFO
11h 05mdirect
15:55 - 10:25SFO-LHR
10h 30mdirect
$948United Airlines
Find Deal
Sun, 13 Apr - Mon, 28 Apr
11:45 - 16:00LHR-SFO
11h 15mdirect
18:30 - 12:00SFO-LHR
10h 30mdirect
$974British Airways
Find Deal
Sun, 16 Mar - Sun, 23 Mar
10:35 - 13:35LHR-SFO
11h 00mdirect
16:00 - 10:25SFO-LHR
10h 25mdirect
$1,144Brussels Airlines
Find Deal
Tue, 1 Jul - Wed, 16 Jul
10:35 - 13:40LHR-SFO
11h 05mdirect
19:40 - 14:10SFO-LHR
10h 30mdirect
$1,806Brussels Airlines
Find Deal
Mon, 7 Apr - Sun, 20 Apr
11:45 - 15:00LHR-SFO
11h 15mdirect
18:30 - 12:00SFO-LHR
10h 30mdirect
$1,987British Airways
Find Deal
Tue, 4 Mar - Sun, 16 Mar

United Airlines flights from London to San Francisco

Our best United Airlines deals on London to San Francisco flight tickets
United Airlines
1 Mar
LHR12:05London Heathrow
36h 20m
1 stop
SFO16:25San Francisco
30 Mar
SFO06:42San Francisco
18h 58m
1 stop
LHR09:40London Heathrow
United Airlines
13 Feb
LHR08:55London Heathrow
15h 30m
1 stop
SFO16:25San Francisco
3 Mar
SFO10:50San Francisco
15h 20m
1 stop
LHR10:10London Heathrow
United Airlines
3 Mar
LHR08:55London Heathrow
15h 30m
1 stop
SFO16:25San Francisco
3 May
SFO15:55San Francisco
10h 30m
LHR10:25London Heathrow

Brussels Airlines flights from London to San Francisco

Our best Brussels Airlines deals on London to San Francisco flight tickets
Brussels Airlines
14 Feb
LHR06:50London Heathrow
19h 55m
2 stops
SFO18:45San Francisco
28 Feb
SFO20:35San Francisco
16h 45m
2 stops
LHR21:20London Heathrow
Brussels Airlines
2 Feb
LHR11:05London Heathrow
39h 40m
2 stops
SFO18:45San Francisco
28 Feb
SFO20:35San Francisco
16h 15m
2 stops
LHR20:50London Heathrow
Brussels Airlines
20 Jan
LHR11:05London Heathrow
57h 30m
2 stops
SFO12:35San Francisco
27 Jan
SFO20:35San Francisco
16h 15m
2 stops
LHR20:50London Heathrow

See travel insights to San Francisco from

How to get the cheapest flight ticket from London to San Francisco

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to San Francisco?

If you aren’t able to travel during the month of February, then book flights to San Francisco from London during November instead. Flights to San Francisco in November, while not as cheap as those in February, still average around $940.

What is the cheapest day to depart on your flight to San Francisco?

According to our data, Monday is the cheapest day to fly to San Francisco from London. The lowest ticket price found for a Monday departure recently was $0. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from London to San Francisco for around $1,146.

What is the cheapest time of day to depart on your flight to San Francisco?

According to our data, the cheapest time of day to fly to San Francisco is in the evening. momondo users have found flights departing from London to San Francisco in the evening for as low as $0. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $1,143 on average. Flights to San Francisco from London in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest London to San Francisco flight route?

Fly from London Heathrow to San Francisco for the best London - San Francisco flight prices

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

You are more likely to see cheaper flights to San Francisco from London when booking 25 weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around $1,094 when searching 25 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Francisco from London for as low as $998 on momondo.

What cabin class options are available on London to San Francisco flights?

There are 1 cabin classes available to choose from on London to San Francisco flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have London to San Francisco flight prices changed over time?

As of January 2025, prices for London to San Francisco flights are approximately 22% more expensive when compared to flights at the same time last year.

When to book flights from London to San Francisco

Are you open to changing your travel dates? Check out the ideal times to fly from London to San Francisco according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap London to San Francisco (LON to SFO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London to San Francisco

Best price found

$541

Fastest flight time

10h 55m

Direct flights

Every day

Airports in San Francisco

1 airport
The best one-way flight to San Francisco from London in the past 72 hours is $541. The best return flight deal from London to San Francisco found on momondo in the last 72 hours is $801.
The fastest flight from London to San Francisco takes 10h 55m
Direct flights go from London to San Francisco every day.
There is 1 airport near San Francisco: San Francisco (SFO)

  • How far is London to San Francisco by plane?

    The straight-line distance from London to San Francisco is 8609.4 km. Typically, this will take 10h 55m by plane in normal conditions.

  • When did momondo last update prices for flights from London to San Francisco Airport?

    Prices for flights from London to San Francisco Airport refresh daily.

  • How old do you have to be to fly from London to San Francisco Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from London to San Francisco Airport.

  • What documentation or ID do you need to fly to San Francisco Airport?

    The travel and health documents required for your trip to San Francisco Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at San Francisco Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from London to San Francisco?

  • What is the most popular airline from London to San Francisco?


Travelling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Walnut Creek
Carmel-by-the-Sea
Watsonville
San Mateo
Pacifica
Sausalito
Mountain View
Santa Cruz
Salinas
Pebble Beach
Union City
Fremont
San Lorenzo
Brentwood

Why use momondo?

Why should I use momondo to find a flight deal from London to San Francisco?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to San Francisco from London.

Can I find flights from London to San Francisco with flexible booking policies on momondo?

Yes. All flights to San Francisco from London on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from London to San Francisco?

Once you have performed a search for London to San Francisco flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from London to San Francisco right now. Can momondo alert me if prices change?

Price alerts on flights to San Francisco from London are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.


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We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

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