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Cheap flights from London to San Francisco from C$ 562

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 round-trip flights

These are some of the best round-trip 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 layovers.

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 from London to San Francisco

The cheapest plane tickets from London to San Francisco found on KAYAK recently.
7:55 p.m. - 2:45 p.m.LHR-SFO
26h 50m1 stop
7:15 p.m. - 10:40 p.m.SFO-LHR
19h 25m1 stop
C$ 723TAP AIR PORTUGAL
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Sun, 16 Feb - Fri, 28 Feb
12:05 p.m. - 4:25 p.m.LHR-SFO
36h 20m1 stop
6:42 a.m. - 9:40 a.m.SFO-LHR
18h 58m1 stop
C$ 730United Airlines
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Sat, 1 Mar - Sun, 30 Mar
6:00 a.m. - 5:25 p.m.LHR-SFO
18h 25m1 stop
8:25 p.m. - 8:05 a.m.SFO-LHR
28h 40m1 stop
C$ 734SWISS
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Fri, 14 Mar - Thu, 20 Mar
6:30 a.m. - 12:35 p.m.LHR-SFO
14h 05m1 stop
12:50 p.m. - 7:25 a.m.SFO-LHR
10h 35mdirect
C$ 737
Find Deal
Thu, 13 Feb - Mon, 3 Mar
6:30 a.m. - 12:35 p.m.LHR-SFO
14h 05m1 stop
12:50 p.m. - 7:25 a.m.SFO-LHR
10h 35mdirect
C$ 739Lufthansa
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Sat, 8 Feb - Sun, 9 Feb
6:30 a.m. - 12:35 p.m.LHR-SFO
14h 05m1 stop
10:45 p.m. - 11:15 a.m.SFO-LHR
28h 30m2 stops
C$ 746Lufthansa
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Fri, 14 Feb - Fri, 28 Feb
8:55 a.m. - 4:25 p.m.LHR-SFO
15h 30m1 stop
12:50 p.m. - 7:25 a.m.SFO-LHR
10h 35mdirect
C$ 749
Find Deal
Wed, 29 Jan - Wed, 5 Feb
8:55 a.m. - 4:25 p.m.LHR-SFO
15h 30m1 stop
7:25 p.m. - 5:50 p.m.SFO-LHR
14h 25m1 stop
C$ 752SWISS
Find Deal
Sat, 8 Feb - Sun, 9 Feb
6:40 a.m. - 3:40 p.m.LHR-SFO
17h 00m1 stop
6:30 p.m. - 6:50 p.m.SFO-LHR
17h 20m2 stops
C$ 762Scandinavian Airlines
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Mon, 3 Mar - Mon, 17 Mar
6:40 a.m. - 3:40 p.m.LHR-SFO
17h 00m1 stop
5:30 p.m. - 2:35 p.m.SFO-LHR
37h 05m2 stops
C$ 763Scandinavian Airlines
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Sat, 1 Mar - Fri, 7 Mar
8:50 p.m. - 6:00 p.m.LHR-SFO
29h 10m1 stop
C$ 562
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Sat, 10 May
8:50 p.m. - 6:00 p.m.LHR-SFO
29h 10m1 stop
C$ 566
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Mon, 12 May
2:50 p.m. - 1:06 p.m.LHR-SFO
30h 16m1 stop
C$ 729WestJet
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Wed, 5 Feb
6:30 p.m. - 2:40 p.m.LHR-SFO
28h 10m1 stop
C$ 802TAP AIR PORTUGAL
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Tue, 18 Feb
4:35 p.m. - 2:35 p.m.LHR-SFO
30h 00m1 stop
C$ 806TAP AIR PORTUGAL
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Thu, 10 Apr
2:10 p.m. - 1:59 p.m.LHR-SFO
31h 49m2 stops
C$ 918WestJet
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Sun, 4 May
8:25 a.m. - 7:24 p.m.LHR-SFO
18h 59m1 stop
C$ 1,028JetBlue
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Wed, 26 Feb
7:25 a.m. - 10:10 p.m.LHR-SFO
22h 45m1 stop
C$ 1,036JetBlue
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Wed, 23 Apr
8:40 p.m. - 1:04 a.m.LHR-SFO
35h 24m2 stops
C$ 1,295Icelandair
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Mon, 24 Mar
1:05 p.m. - 12:25 p.m.LHR-SFO
31h 20m2 stops
C$ 1,296Icelandair
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Tue, 15 Apr
1:00 p.m. - 8:46 p.m.LHR-SFO
15h 46m1 stop
11:10 a.m. - 10:50 a.m.SFO-LHR
15h 40m2 stops
C$ 815United Airlines
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Tue, 21 Jan - Tue, 28 Jan
11:40 a.m. - 2:45 p.m.LHR-SFO
11h 05mdirect
4:40 p.m. - 10:55 a.m.SFO-LHR
10h 15mdirect
C$ 819Virgin Atlantic
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Fri, 17 Jan - Thu, 6 Feb
11:10 a.m. - 8:07 p.m.LHR-SFO
16h 57m1 stop
12:50 p.m. - 7:25 a.m.SFO-LHR
10h 35mdirect
C$ 822United Airlines
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Mon, 20 Jan - Thu, 20 Feb
6:30 a.m. - 11:50 a.m.LHR-SFO
13h 20m1 stop
5:30 a.m. - 10:00 a.m.SFO-LHR
20h 30m1 stop
C$ 832Delta
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Sat, 18 Jan - Tue, 21 Jan
11:40 a.m. - 2:45 p.m.LHR-SFO
11h 05mdirect
8:20 a.m. - 9:45 a.m.SFO-LHR
17h 25m1 stop
C$ 858Delta
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Fri, 17 Jan - Sun, 19 Jan
11:05 a.m. - 12:35 p.m.LHR-SFO
57h 30m2 stops
8:35 p.m. - 8:50 p.m.SFO-LHR
16h 15m2 stops
C$ 1,026Brussels Airlines
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Mon, 20 Jan - Mon, 27 Jan
7:30 p.m. - 4:25 p.m.LHR-SFO
28h 55m2 stops
7:25 p.m. - 8:15 a.m.SFO-LHR
28h 50m2 stops
C$ 1,032SWISS
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Tue, 21 Jan - Tue, 28 Jan
11:05 a.m. - 6:45 p.m.LHR-SFO
39h 40m2 stops
2:40 p.m. - 9:20 p.m.SFO-LHR
22h 40m2 stops
C$ 1,052Brussels Airlines
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Mon, 20 Jan - Thu, 30 Jan
7:00 a.m. - 4:25 p.m.LHR-SFO
17h 25m2 stops
7:25 p.m. - 5:50 p.m.SFO-LHR
14h 25m1 stop
C$ 1,054SWISS
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Fri, 17 Jan - Sun, 26 Jan
2:45 p.m. - 11:50 a.m.LHR-SFO
29h 05m2 stops
1:31 p.m. - 9:25 p.m.SFO-LHR
23h 54m2 stops
C$ 1,138Air France
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Mon, 20 Jan - Thu, 20 Feb
10:05 a.m. - 1:15 p.m.LHR-SFO
11h 10mdirect
5:25 p.m. - 12:00 p.m.SFO-LHR
10h 35mdirect
C$ 778Lufthansa
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Mon, 10 Feb - Sun, 2 Mar
10:05 a.m. - 1:15 p.m.LHR-SFO
11h 10mdirect
12:50 p.m. - 7:25 a.m.SFO-LHR
10h 35mdirect
C$ 779
Find Deal
Thu, 13 Feb - Fri, 28 Feb
11:15 a.m. - 2:20 p.m.LHR-SFO
11h 05mdirect
4:10 p.m. - 10:30 a.m.SFO-LHR
10h 20mdirect
C$ 780Delta
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Sun, 20 Apr - Tue, 29 Apr
11:40 a.m. - 2:45 p.m.LHR-SFO
11h 05mdirect
4:40 p.m. - 10:55 a.m.SFO-LHR
10h 15mdirect
C$ 782Delta
Find Deal
Wed, 29 Jan - Wed, 5 Feb
10:35 a.m. - 1:40 p.m.LHR-SFO
11h 05mdirect
12:55 p.m. - 7:25 a.m.SFO-LHR
10h 30mdirect
C$ 845Austrian Airlines
Find Deal
Tue, 15 Apr - Wed, 30 Apr
4:15 p.m. - 7:20 p.m.LHR-SFO
11h 05mdirect
3:55 p.m. - 10:25 a.m.SFO-LHR
10h 30mdirect
C$ 847United Airlines
Find Deal
Sun, 13 Apr - Mon, 28 Apr
10:35 a.m. - 1:40 p.m.LHR-SFO
11h 05mdirect
3:55 p.m. - 10:25 a.m.SFO-LHR
10h 30mdirect
C$ 849United Airlines
Find Deal
Thu, 17 Apr - Thu, 1 May
11:45 a.m. - 4:00 p.m.LHR-SFO
11h 15mdirect
6:30 p.m. - 12:00 p.m.SFO-LHR
10h 30mdirect
C$ 870British Airways
Find Deal
Sun, 16 Mar - Sun, 23 Mar
10:05 a.m. - 1:15 p.m.LHR-SFO
11h 10mdirect
7:40 p.m. - 2:10 p.m.SFO-LHR
10h 30mdirect
C$ 1,219Austrian Airlines
Find Deal
Tue, 25 Feb - Fri, 18 Apr
11:45 a.m. - 3:00 p.m.LHR-SFO
11h 15mdirect
6:30 p.m. - 12:00 p.m.SFO-LHR
10h 30mdirect
C$ 1,775British 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
LHR12:05 p.m.London Heathrow
36h 20m
1 stop
SFO4:25 p.m.San Francisco
30 Mar
SFO6:42 a.m.San Francisco
18h 58m
1 stop
LHR9:40 a.m.London Heathrow
United Airlines
6 Feb
LHR8:55 a.m.London Heathrow
15h 30m
1 stop
SFO4:25 p.m.San Francisco
20 Feb
SFO5:25 p.m.San Francisco
10h 35m
LHR12:00 p.m.London Heathrow
United Airlines
3 Mar
LHR8:55 a.m.London Heathrow
15h 30m
1 stop
SFO4:25 p.m.San Francisco
3 May
SFO8:15 a.m.San Francisco
17h 45m
1 stop
LHR10:00 a.m.London Heathrow

SWISS flights from London to San Francisco

Our best SWISS deals on London to San Francisco flight tickets
SWISS
14 Mar
LHR6:00 a.m.London Heathrow
18h 25m
1 stop
SFO5:25 p.m.San Francisco
20 Mar
SFO8:25 p.m.San Francisco
28h 40m
1 stop
LHR8:05 a.m.London Heathrow
SWISS
8 Feb
LHR8:55 a.m.London Heathrow
15h 30m
1 stop
SFO4:25 p.m.San Francisco
9 Feb
SFO7:25 p.m.San Francisco
14h 25m
1 stop
LHR5:50 p.m.London Heathrow
SWISS
29 Jan
LHR12:05 p.m.London Heathrow
36h 20m
1 stop
SFO4:25 p.m.San Francisco
8 Feb
SFO7:25 p.m.San Francisco
14h 25m
1 stop
LHR5:50 p.m.London 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?

The cheapest month to fly to San Francisco from London is in February. Flight prices, which tend to average around C$ 795, are often lower during this time because this is during the off-season. The month of November is another great option to travel to San Francisco, with average flight prices from London averaging around C$ 839.

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

The cheapest day to depart from London to San Francisco is on a Monday. Travellers who choose to depart for San Francisco on a Monday will often find tickets for as low as C$ 0. 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 C$ 1,111.

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

Flying to San Francisco from London in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as C$ 0 when looking at flights departing in the afternoon. In contrast, the most expensive time of day to depart to San Francisco is in the morning when prices are around C$ 915.

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 C$ 977 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 C$ 891 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 round-trip 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

C$ 562

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 C$ 562. The best round-trip flight deal from London to San Francisco found on momondo in the last 72 hours is C$ 723.
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 distance between London and San Francisco is about 8609.4 km. Flights usually cover this in 10h 55m, depending on flying conditions and air traffic around both airports.

  • 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 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 offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. 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 license, 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?


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
United AirlinesPriceFrom C$ 915Free CancellationRating
7.4
8,964 reviews
Search United Airlines flights
  • United Airlines Flights From London to San Francisco

    United Airlines flight deals from London to San Francisco start from C$ 636 round-trip. Over the 14 United Airlines flights for this route in a normal week, average airfare is usually C$ 636 round-trip - but some users have found much cheaper deals with momondo.


Travelling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Sunnyvale
Los Altos
Palo Alto
Carmel-by-the-Sea
Newark
South San Francisco
Mountain View
Yountville
Daly City
Fremont
Half Moon Bay
Santa Cruz
Berkeley
Pacific Grove
Burlingame
Big Sur
Mill Valley
Modesto
Santa Clara
Vacaville

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. momondo allows you to filter the results for London to San Francisco flights to just show those with flexible booking policies.

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

momondo helps you find the best flight between London and San Francisco by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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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