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Cheap flights from London to San Francisco from £256

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 29/1. 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 round-trip train or bus tickets from London to San Francisco.

All round-trip flight deals to San Francisco

The cheapest plane tickets to San Francisco found on KAYAK recently.
19:55 - 14:15LHR-SFO
26h 20m1 stop
16:35 - 22:40SFO-LHR
22h 05m1 stop
£372TAP AIR PORTUGAL
Find Deal
Thu, 16 Jan - Wed, 29 Jan
16:30 - 14:15LHR-SFO
29h 45m1 stop
16:35 - 18:55SFO-LHR
18h 20m1 stop
£377TAP AIR PORTUGAL
Find Deal
Thu, 16 Jan - Wed, 29 Jan
13:45 - 16:55LHR-SFO
11h 10mdirect
17:25 - 12:00SFO-LHR
10h 35mdirect
£398Lufthansa
Find Deal
Thu, 6 Feb - Thu, 20 Feb
10:05 - 13:15LHR-SFO
11h 10mdirect
17:25 - 12:00SFO-LHR
10h 35mdirect
£399Lufthansa
Find Deal
Fri, 17 Jan - Fri, 24 Jan
15:45 - 11:50LHR-SFO
28h 05m1 stop
16:40 - 10:55SFO-LHR
10h 15mdirect
£425Virgin Atlantic
Find Deal
Thu, 16 Jan - Wed, 29 Jan
06:30 - 11:50LHR-SFO
13h 20m1 stop
16:40 - 10:55SFO-LHR
10h 15mdirect
£426Virgin Atlantic
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Thu, 16 Jan - Wed, 29 Jan
08:55 - 16:25LHR-SFO
15h 30m1 stop
08:25 - 06:40SFO-LHR
14h 15m1 stop
£442United Airlines
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Thu, 16 Jan - Wed, 29 Jan
10:00 - 21:40LHR-SFO
19h 40m2 stops
19:05 - 09:40SFO-LHR
30h 35m1 stop
£443United Airlines
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Wed, 15 Jan - Sun, 19 Jan
11:45 - 15:00LHR-SFO
11h 15mdirect
18:30 - 12:00SFO-LHR
10h 30mdirect
£446British Airways
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Mon, 24 Feb - Tue, 18 Mar
11:45 - 15:00LHR-SFO
11h 15mdirect
10:20 - 07:20SFO-LHR
14h 00m1 stop
£450British Airways
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Fri, 28 Feb - Thu, 20 Mar
07:55 - 20:10LGW-SFO
20h 15m1 stop
Wed, 29 Jan
07:55 - 20:10LGW-SFO
20h 15m1 stop
Sun, 2 Feb
07:55 - 20:10LGW-SFO
20h 15m1 stop
Wed, 5 Feb
17:50 - 11:50LHR-SFO
26h 00m1 stop
£387Virgin Atlantic
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Fri, 7 Feb
16:35 - 10:52LHR-SFO
26h 17m1 stop
£447Virgin Atlantic
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Tue, 24 Dec
15:05 - 00:03LGW-SFO
16h 58m1 stop
£449British Airways
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Sat, 31 May
11:45 - 15:00LHR-SFO
11h 15mdirect
£462British Airways
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Fri, 17 Jan
11:45 - 15:00LHR-SFO
11h 15mdirect
£472Finnair
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Wed, 5 Feb
08:30 - 16:00LHR-SFO
15h 30m1 stop
£476Lufthansa
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Mon, 20 Jan
20:15 - 14:50LHR-SFO
26h 35m1 stop
£483Lufthansa
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Mon, 13 Jan
10:45 - 22:48LHR-SFO
20h 03m1 stop
12:05 - 11:40SFO-LHR
15h 35m1 stop
£514Virgin Atlantic
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Tue, 24 Dec - Tue, 14 Jan
13:45 - 16:55LHR-SFO
11h 10mdirect
12:50 - 07:25SFO-LHR
10h 35mdirect
£534United Airlines
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Tue, 24 Dec - Tue, 14 Jan
13:45 - 16:55LHR-SFO
11h 10mdirect
00:30 - 07:30SFO-LHR
23h 00m1 stop
£538Lufthansa
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Tue, 24 Dec - Tue, 31 Dec
09:05 - 18:45LHR-SFO
41h 40m2 stops
08:25 - 11:15SFO-LHR
18h 50m2 stops
£603Austrian Airlines
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Mon, 23 Dec - Tue, 14 Jan
06:00 - 18:45LHR-SFO
20h 45m2 stops
11:55 - 21:40SFO-LHR
49h 45m2 stops
£613Austrian Airlines
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Tue, 24 Dec - Tue, 14 Jan
10:15 - 19:05LHR-SFO
16h 50m1 stop
11:42 - 12:00SFO-LHR
16h 18m1 stop
£625Finnair
Find Deal
Tue, 24 Dec - Sat, 28 Dec
11:45 - 15:00LHR-SFO
11h 15mdirect
20:40 - 15:15SFO-LHR
10h 35mdirect
£633British Airways
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Tue, 24 Dec - Wed, 1 Jan
11:45 - 15:00LHR-SFO
11h 15mdirect
20:40 - 15:15SFO-LHR
10h 35mdirect
£663Finnair
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Tue, 24 Dec - Sat, 28 Dec
08:30 - 12:35LHR-SFO
36h 05m1 stop
13:50 - 07:25SFO-LHR
10h 35mdirect
£667Lufthansa
Find Deal
Mon, 23 Dec - Wed, 29 Oct
15:20 - 18:45LHR-SFO
11h 25mdirect
17:30 - 12:00SFO-LHR
10h 30mdirect
£869British Airways
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Sun, 22 Dec - Wed, 8 Jan
10:05 - 13:15LHR-SFO
11h 10mdirect
17:25 - 12:00SFO-LHR
10h 35mdirect
£398Lufthansa
Find Deal
Thu, 30 Jan - Sat, 8 Feb
10:05 - 13:15LHR-SFO
11h 10mdirect
17:25 - 12:00SFO-LHR
10h 35mdirect
£399Lufthansa
Find Deal
Fri, 17 Jan - Fri, 24 Jan
10:05 - 13:15LHR-SFO
11h 10mdirect
12:50 - 07:25SFO-LHR
10h 35mdirect
£408Lufthansa
Find Deal
Sat, 11 Jan - Wed, 22 Jan
13:45 - 16:55LHR-SFO
11h 10mdirect
12:50 - 07:25SFO-LHR
10h 35mdirect
£409Austrian Airlines
Find Deal
Wed, 12 Feb - Wed, 26 Feb
13:45 - 16:55LHR-SFO
11h 10mdirect
12:50 - 07:25SFO-LHR
10h 35mdirect
£411Austrian Airlines
Find Deal
Mon, 13 Jan - Sun, 26 Jan
11:40 - 14:45LHR-SFO
11h 05mdirect
16:40 - 10:55SFO-LHR
10h 15mdirect
£429Virgin Atlantic
Find Deal
Wed, 15 Jan - Wed, 22 Jan
11:40 - 14:45LHR-SFO
11h 05mdirect
16:40 - 10:55SFO-LHR
10h 15mdirect
£431Virgin Atlantic
Find Deal
Fri, 17 Jan - Mon, 27 Jan
15:20 - 18:45LHR-SFO
11h 25mdirect
20:40 - 15:15SFO-LHR
10h 35mdirect
£435British Airways
Find Deal
Thu, 6 Feb - Sat, 22 Feb
15:20 - 18:45LHR-SFO
11h 25mdirect
18:30 - 12:00SFO-LHR
10h 30mdirect
£446British Airways
Find Deal
Mon, 24 Feb - Thu, 20 Mar
13:45 - 16:55LHR-SFO
11h 10mdirect
12:55 - 07:25SFO-LHR
10h 30mdirect
£515United Airlines
Find Deal
Mon, 13 Jan - Wed, 30 Apr

Air France flights from London to San Francisco

Our best Air France deals on London to San Francisco flight tickets
Air France
15 Jan
LHR11:40London Heathrow
11h 05m
SFO14:45San Francisco
2 May
SFO16:05San Francisco
10h 20m
LHR10:25London Heathrow
Air France
25 Dec
LHR11:40London Heathrow
11h 05m
SFO14:45San Francisco
31 Dec
SFO16:40San Francisco
10h 15m
LHR10:55London Heathrow
Air France
25 Dec
LHR11:40London Heathrow
11h 05m
SFO14:45San Francisco
31 Dec
SFO16:40San Francisco
10h 15m
LHR10:55London Heathrow

TAP AIR PORTUGAL flights from London to San Francisco

Our best TAP AIR PORTUGAL deals on London to San Francisco flight tickets
TAP AIR PORTUGAL
16 Jan
LHR19:55London Heathrow
26h 20m
1 stop
SFO14:15San Francisco
29 Jan
SFO16:35San Francisco
22h 05m
1 stop
LHR22:40London Heathrow
TAP AIR PORTUGAL
16 Jan
LHR16:30London Heathrow
29h 45m
1 stop
SFO14:15San Francisco
29 Jan
SFO16:35San Francisco
18h 20m
1 stop
LHR18:55London Heathrow
TAP AIR PORTUGAL
31 Jan
LHR19:55London Heathrow
27h 00m
1 stop
SFO14:55San Francisco
28 Feb
SFO19:15San Francisco
19h 25m
1 stop
LHR22:40London 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 typical price of a round-trip flight between London and San Francisco?

What is the cheapest month to fly to San Francisco?

The month of February is, on average, the cheapest month to fly to San Francisco from London, with most prices found around £429. If you are unable to visit San Francisco during the month of February, then departing from London during the month November is also very affordable. Most momondo users find prices during this month for around £461.

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

The cheapest day to depart on your flight to San Francisco is on a Tuesday when prices can be found for as low as £510. This is often the case because there is less demand to fly during this day of the week. Flights from London to San Francisco on a Sunday will generally be more expensive and average around £559. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

Our most recent data shows that the best time of day to fly to San Francisco is at midday. Flights from London to San Francisco during this time can be as low as £500. Try not to purchase tickets in the afternoon because they tend to be around £542. Of course, these prices can vary depending on the time of year and what airport you fly to.

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?

In general, most travellers find the cheapest time to book a flight to San Francisco is about 22 days prior to their departure date, when tickets on average are £531. Keep in mind that you might also find cheap flights to San Francisco outside of this time window. In fact, momondo users recently found flights from London to San Francisco for £375.

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

There are 4 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.

Can stopping save me money on London to San Francisco flights?

You could potentially save up to 43% on your flight if you consider stops on a London to San Francisco flight.

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

As of December 2024, prices for London to San Francisco flights are approximately 17% 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

£256

Fastest flight time

11h 05m

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 £256. The best return flight deal from London to San Francisco found on momondo in the last 72 hours is £372.
The fastest flight from London to San Francisco takes 11h 05m
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?

    A flight from London to San Francisco will travel around 5349.7 mi. 11h 05m is a normal flight duration for this route.

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

    Prices for flights from London to San Francisco Airport are updated daily.

  • How many operators does momondo search for flights from London to San Francisco Airport?

  • 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 that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 you'll need for your trip to San Francisco Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Francisco Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

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


Best airlines flying from London to San Francisco

Compare and see reviews for airlines that fly from London to San Francisco with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom £305Free CancellationRating
8.0
8,600 reviews
Search Delta flights
Air CanadaPriceFrom £317Free CancellationRating
7.0
8,391 reviews
Search Air Canada flights
Brussels AirlinesPriceFrom £348Free CancellationRating
7.4
353 reviews
Search Brussels Airlines flights
TAP AIR PORTUGALPriceFrom £365Free CancellationRating
7.1
1,878 reviews
Search TAP AIR PORTUGAL flights
Virgin AtlanticPriceFrom £373Free CancellationRating
7.5
668 reviews
Search Virgin Atlantic flights
Scandinavian AirlinesPriceFrom £374Free CancellationRating
7.3
1,308 reviews
Search Scandinavian Airlines flights
British AirwaysPriceFrom £375Free CancellationRating
6.6
6,817 reviews
Search British Airways flights
FinnairPriceFrom £392Free CancellationRating
7.7
1,285 reviews
Search Finnair flights
KLMPriceFrom £400Free CancellationRating
7.8
1,349 reviews
Search KLM flights
Austrian AirlinesPriceFrom £400Free CancellationRating
7.5
788 reviews
Search Austrian Airlines flights
  • Delta Flights From London to San Francisco

    The lowest priced Delta flight from London to San Francisco from the last 72 hours was £387. Generally, Delta has 7 flights on this route every week with an average price of £652. Delta is rated 8.0/10 by our users.

  • KLM Flights From London to San Francisco

    KLM is also a popular choice for this route. KLM flight deals for London to San Francisco start from as low as £507 round-trip, depending on your selected dates, with average KLM deals seen on momondo around £746. KLM operates 7 flights to San Francisco from London in an average week. Users have rated it 7.8/10 across 1,349 reviews.


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?

momondo does allow users to show only those flights to San Francisco from London which offer a flexible booking policy as well as other useful filters and features.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from London to San Francisco.

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

Of course. momondo tracks the price of London to San Francisco flights. All you need is a valid email address and we will do the rest; it is that quick and easy.


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