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Cheap flights from London to San Francisco from €380

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 10/5. 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.
19:55 - 14:45LHR-SFO
26h 50m1 stop
19:15 - 22:40SFO-LHR
19h 25m1 stop
€489TAP AIR PORTUGAL
Find Deal
Sun, 16 Feb - Fri, 28 Feb
12:05 - 16:25LHR-SFO
36h 20m1 stop
06:42 - 09:40SFO-LHR
18h 58m1 stop
€494United Airlines
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Sat, 1 Mar - Sun, 30 Mar
08:55 - 17:25LHR-SFO
15h 30m1 stop
19:05 - 17:50SFO-LHR
14h 45m1 stop
€496SWISS
Find Deal
Fri, 14 Mar - Mon, 31 Mar
09:30 - 16:00LHR-SFO
14h 30m1 stop
12:50 - 07:25SFO-LHR
10h 35mdirect
€498
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Thu, 13 Feb - Thu, 20 Feb
08:55 - 16:25LHR-SFO
15h 30m1 stop
12:50 - 07:25SFO-LHR
10h 35mdirect
€506
Find Deal
Wed, 29 Jan - Wed, 5 Feb
17:10 - 16:25LHR-SFO
31h 15m1 stop
19:25 - 21:40SFO-LHR
18h 15m1 stop
€508SWISS
Find Deal
Thu, 30 Jan - Thu, 6 Feb
07:40 - 14:50LHR-SFO
15h 10m1 stop
17:25 - 12:00SFO-LHR
10h 35mdirect
€509Lufthansa
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Thu, 30 Jan - Thu, 6 Feb
06:40 - 15:40LHR-SFO
17h 00m1 stop
18:30 - 18:50SFO-LHR
17h 20m2 stops
€515Scandinavian Airlines
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Mon, 3 Mar - Mon, 17 Mar
06:40 - 15:40LHR-SFO
17h 00m1 stop
17:30 - 14:35SFO-LHR
37h 05m2 stops
€516Scandinavian Airlines
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Sat, 1 Mar - Fri, 7 Mar
10:30 - 18:45LHR-SFO
16h 15m2 stops
14:55 - 13:30SFO-LHR
14h 35m1 stop
€526Lufthansa
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Thu, 13 Feb - Fri, 28 Feb
20:50 - 18:00LHR-SFO
29h 10m1 stop
€380
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Sat, 10 May
20:50 - 18:00LHR-SFO
29h 10m1 stop
€383
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Mon, 12 May
14:50 - 13:06LHR-SFO
30h 16m1 stop
€493WestJet
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Wed, 5 Feb
18:30 - 14:40LHR-SFO
28h 10m1 stop
€542TAP AIR PORTUGAL
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Tue, 18 Feb
16:35 - 14:35LHR-SFO
30h 00m1 stop
€545TAP AIR PORTUGAL
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Thu, 10 Apr
14:10 - 13:59LHR-SFO
31h 49m2 stops
€621WestJet
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Sun, 4 May
08:25 - 19:24LHR-SFO
18h 59m1 stop
€695JetBlue
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Wed, 26 Feb
07:25 - 22:10LHR-SFO
22h 45m1 stop
€700JetBlue
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Wed, 23 Apr
20:40 - 01:04LHR-SFO
35h 24m2 stops
€875Icelandair
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Mon, 24 Mar
13:05 - 12:25LHR-SFO
31h 20m2 stops
€876Icelandair
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Tue, 15 Apr
11:40 - 14:45LHR-SFO
11h 05mdirect
16:40 - 10:55SFO-LHR
10h 15mdirect
€529Delta
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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
€551United 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
€554Virgin Atlantic
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Mon, 20 Jan - Tue, 6 May
11:10 - 21:42LHR-SFO
18h 32m1 stop
12:50 - 07:25SFO-LHR
10h 35mdirect
€556United Airlines
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Mon, 20 Jan - Thu, 20 Feb
09:10 - 23:54LHR-SFO
22h 44m1 stop
21:20 - 15:40SFO-LHR
10h 20mdirect
€560Virgin Atlantic
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Mon, 20 Jan - Tue, 6 May
11:05 - 12:35LHR-SFO
57h 30m2 stops
20:35 - 20:50SFO-LHR
16h 15m2 stops
€694Brussels Airlines
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Mon, 20 Jan - Mon, 27 Jan
19:30 - 16:25LHR-SFO
28h 55m2 stops
19:25 - 08:15SFO-LHR
28h 50m2 stops
€698SWISS
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Tue, 21 Jan - Tue, 28 Jan
11:05 - 18:45LHR-SFO
39h 40m2 stops
14:40 - 21:20SFO-LHR
22h 40m2 stops
€711Brussels Airlines
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Mon, 20 Jan - Thu, 30 Jan
19:30 - 16:25LHR-SFO
28h 55m2 stops
14:00 - 16:35SFO-LHR
18h 35m2 stops
€731SWISS
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Mon, 20 Jan - Tue, 6 May
14:45 - 11:50LHR-SFO
29h 05m2 stops
13:31 - 21:25SFO-LHR
23h 54m2 stops
€769Air France
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Mon, 20 Jan - Thu, 20 Feb
13:45 - 16:55LHR-SFO
11h 10mdirect
17:25 - 12:00SFO-LHR
10h 35mdirect
€526Lufthansa
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Mon, 10 Feb - Sat, 1 Mar
10:05 - 13:15LHR-SFO
11h 10mdirect
12:50 - 07:25SFO-LHR
10h 35mdirect
€527
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Thu, 13 Feb - Fri, 28 Feb
11:15 - 14:20LHR-SFO
11h 05mdirect
16:10 - 10:30SFO-LHR
10h 20mdirect
€528Delta
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Sun, 20 Apr - Tue, 29 Apr
11:40 - 14:45LHR-SFO
11h 05mdirect
16:40 - 10:55SFO-LHR
10h 15mdirect
€529Delta
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Wed, 29 Jan - Wed, 5 Feb
10:35 - 13:40LHR-SFO
11h 05mdirect
12:55 - 07:25SFO-LHR
10h 30mdirect
€571United Airlines
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Tue, 15 Apr - Tue, 29 Apr
16:15 - 19:20LHR-SFO
11h 05mdirect
12:55 - 07:25SFO-LHR
10h 30mdirect
€572United Airlines
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Sun, 13 Apr - Thu, 1 May
11:45 - 16:00LHR-SFO
11h 15mdirect
18:30 - 12:00SFO-LHR
10h 30mdirect
€588British Airways
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Sun, 16 Mar - Sun, 23 Mar
10:35 - 13:35LHR-SFO
11h 00mdirect
16:00 - 10:25SFO-LHR
10h 25mdirect
€691Brussels Airlines
Find Deal
Tue, 1 Jul - Wed, 16 Jul
10:35 - 13:40LHR-SFO
11h 05mdirect
19:40 - 14:10SFO-LHR
10h 30mdirect
€1,090Brussels Airlines
Find Deal
Mon, 7 Apr - Sun, 20 Apr
11:45 - 15:00LHR-SFO
11h 15mdirect
18:30 - 12:00SFO-LHR
10h 30mdirect
€1,200British 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
22 Feb
SFO08:26San Francisco
18h 24m
1 stop
LHR10:50London 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

SWISS flights from London to San Francisco

Our best SWISS deals on London to San Francisco flight tickets
SWISS
14 Mar
LHR08:55London Heathrow
15h 30m
1 stop
SFO17:25San Francisco
31 Mar
SFO19:05San Francisco
14h 45m
1 stop
LHR17:50London Heathrow
SWISS
30 Jan
LHR17:10London Heathrow
31h 15m
1 stop
SFO16:25San Francisco
6 Feb
SFO19:25San Francisco
18h 15m
1 stop
LHR21:40London Heathrow
SWISS
29 Jan
LHR12:05London Heathrow
36h 20m
1 stop
SFO16:25San Francisco
9 Feb
SFO19:25San Francisco
14h 25m
1 stop
LHR17:50London 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 typical price of a round-trip flight between London and San Francisco?

What is the cheapest month to fly to San Francisco?

The cheapest month to fly to San Francisco from London is in February. Flight prices, which tend to average around €537, are often lower during this time because this is during the off-season. 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 €567.

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

On average, the least expensive day to fly to San Francisco from London is on a Monday. momondo users have found tickets for Monday departures for as low as €0. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Saturday is the most expensive day to depart from London because it is more convenient for both business and leisure travellers. As a result, prices tend to be around €695.

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 at midday. momondo users have found flights departing from London to San Francisco at midday 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 €710 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 €660 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 €602 on momondo.

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

There are 2 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

€380

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 €380. The best return flight deal from London to San Francisco found on momondo in the last 72 hours is €489.
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. By plane, this route typically takes 10h 55m.

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

    Prices for flights from London to San Francisco Airport were last updated today.

  • 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 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 licence 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?


Travelling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Santa Cruz
Walnut Creek
Burlingame
Alameda

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from London to San Francisco for you.

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

All flight searches from London to San Francisco on momondo can be filtered to show those which offer flexible booking policies.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to San Francisco from London.

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

If you are simply researching potential flights to San Francisco, momondo offers a useful price alert feature which will track prices for flights to San Francisco from London and alert you when they change.


An easier way to manage your San Francisco trip

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