How many flights depart from London to San Francisco on average per week?

294 flights are operational weekly from London to San Francisco as of September 2025. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.

How many flights depart from London to San Francisco on average per day?

As of September 2025, 42 flights take off from London and land in San Francisco each day. The most common flight departure time for this route is 10:00a.m., with 57% of daily flights taking off in the afternoon.

What is the cheapest airline that flies from London to San Francisco?

British Airways, KLM, and Delta are the most popular carriers operating from London to San Francisco

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?

The number of operators available for flights from London to San Francisco Airport is 1 as of September 2025.

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.

C$ 646 Cheap Flights from London to San Francisco in 2025/26

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Find the cheapest flights from London to San Francisco

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

6:15 a.m. - 12:50 p.m.LHR-SFO

14h 35m1 stop

4:30 p.m. - 10:40 a.m.SFO-LHR

10h 10mdirect

C$ 738Delta

Find Deal

Thu, 9 Oct - Fri, 6 Mar

12:20 p.m. - 3:25 p.m.LHR-SFO

11h 05mdirect

11:40 a.m. - 9:35 a.m.SFO-LHR

13h 55m1 stop

C$ 739United Airlines

Find Deal

Sat, 27 Sep - Sun, 28 Sep

10:35 a.m. - 1:40 p.m.LHR-SFO

11h 05mdirect

4:35 p.m. - 1:20 p.m.SFO-LHR

12h 45m1 stop

C$ 741United Airlines

Find Deal

Fri, 3 Oct - Fri, 17 Oct

8:20 a.m. - 6:35 p.m.LHR-SFO

18h 15m1 stop

3:50 p.m. - 4:05 p.m.SFO-LHR

16h 15m1 stop

C$ 747British Airways

Find Deal

Sat, 27 Sep - Wed, 8 Oct

7:50 p.m. - 2:35 p.m.LHR-SFO

26h 45m2 stops

4:40 p.m. - 6:50 p.m.SFO-LHR

18h 10m2 stops

C$ 760Scandinavian Airlines

Find Deal

Wed, 28 Jan - Mon, 9 Feb

7:05 p.m. - 9:24 a.m.LHR-SFO

22h 19m1 stop

8:00 a.m. - 9:25 a.m.SFO-LHR

17h 25m1 stop

C$ 765British Airways

Find Deal

Sun, 28 Sep - Thu, 9 Oct

6:40 a.m. - 2:35 p.m.LHR-SFO

15h 55m1 stop

4:40 p.m. - 4:00 p.m.SFO-LHR

15h 20m1 stop

C$ 774Scandinavian Airlines

Find Deal

Fri, 12 Dec - Sat, 27 Dec

10:35 a.m. - 1:40 p.m.LHR-SFO

11h 05mdirect

8:25 a.m. - 6:20 a.m.SFO-LHR

13h 55m1 stop

C$ 782

Find Deal

Sat, 27 Sep - Mon, 6 Oct

6:30 a.m. - 12:40 p.m.LHR-SFO

14h 10m1 stop

7:50 p.m. - 2:10 p.m.SFO-LHR

10h 20mdirect

C$ 785Lufthansa

Find Deal

Fri, 26 Sep - Thu, 9 Oct

6:30 a.m. - 12:40 p.m.LHR-SFO

14h 10m1 stop

4:20 p.m. - 1:30 p.m.SFO-LHR

13h 10m1 stop

C$ 793Lufthansa

Find Deal

Sun, 14 Dec - Fri, 16 Jan

Scandinavian Airlines flights from London to San Francisco

Our best Scandinavian Airlines deals on London to San Francisco flight tickets

Scandinavian Airlines

28 Jan

LHR7:50 p.m.London Heathrow

26h 45m

2 stops

SFO2:35 p.m.San Francisco

9 Feb

SFO4:40 p.m.San Francisco

18h 10m

2 stops

LHR6:50 p.m.London Heathrow

C$ 760

Find similar

Scandinavian Airlines

12 Dec

LHR6:40 a.m.London Heathrow

15h 55m

1 stop

SFO2:35 p.m.San Francisco

27 Dec

SFO4:40 p.m.San Francisco

15h 20m

1 stop

LHR4:00 p.m.London Heathrow

C$ 774

Find similar

Scandinavian Airlines

5 Nov

LHR7:50 p.m.London Heathrow

26h 45m

2 stops

SFO2:35 p.m.San Francisco

10 Nov

SFO4:40 p.m.San Francisco

18h 10m

2 stops

LHR6:50 p.m.London Heathrow

C$ 788

Find similar

Lufthansa flights from London to San Francisco

Our best Lufthansa deals on London to San Francisco flight tickets

Lufthansa

21 Sep

LHR12:20 p.m.London Heathrow

11h 05m

SFO3:25 p.m.San Francisco

4 Oct

SFO1:02 p.m.San Francisco

13h 38m

1 stop

LHR10:40 a.m.London Heathrow

C$ 741

Find similar

Lufthansa

20 Sep

LHR4:15 p.m.London Heathrow

11h 00m

SFO7:15 p.m.San Francisco

29 Sep

SFO1:02 p.m.San Francisco

13h 38m

1 stop

LHR10:40 a.m.London Heathrow

C$ 782

Find similar

Lufthansa

26 Sep

LHR6:30 a.m.London Heathrow

14h 10m

1 stop

SFO12:40 p.m.San Francisco

9 Oct

SFO7:50 p.m.San Francisco

10h 20m

LHR2:10 p.m.London Heathrow

C$ 785

Find similar

Fly from

Fly to

Route

Depart

Return

Price

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Thu 9/10

6:15 a.m.-12:50 p.m.

1 stop14h 35m

San Francisco

Fri 6/3

4:30 p.m.-10:40 a.m.

Nonstop10h 10m

C$ 738

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sat 27/9

12:20 p.m.-3:25 p.m.

Nonstop11h 05m

San Francisco

Sun 28/9

11:40 a.m.-9:35 a.m.

1 stop13h 55m

C$ 739

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Fri 3/10

10:35 a.m.-1:40 p.m.

Nonstop11h 05m

San Francisco

Fri 17/10

4:35 p.m.-1:20 p.m.

1 stop12h 45m

C$ 741

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sat 27/9

8:20 a.m.-6:35 p.m.

1 stop18h 15m

San Francisco

Wed 8/10

3:50 p.m.-4:05 p.m.

1 stop16h 15m

C$ 747

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 28/1

7:50 p.m.-2:35 p.m.

2 stops26h 45m

San Francisco

Mon 9/2

4:40 p.m.-6:50 p.m.

2 stops18h 10m

C$ 760

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sun 28/9

7:05 p.m.-9:24 a.m.

1 stop22h 19m

San Francisco

Thu 9/10

8:00 a.m.-9:25 a.m.

1 stop17h 25m

C$ 765

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Fri 12/12

6:40 a.m.-2:35 p.m.

1 stop15h 55m

San Francisco

Sat 27/12

4:40 p.m.-4:00 p.m.

1 stop15h 20m

C$ 774

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sat 27/9

10:35 a.m.-1:40 p.m.

Nonstop11h 05m

San Francisco

Mon 6/10

8:25 a.m.-6:20 a.m.

1 stop13h 55m

C$ 782

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Fri 26/9

6:30 a.m.-12:40 p.m.

1 stop14h 10m

San Francisco

Thu 9/10

7:50 p.m.-2:10 p.m.

Nonstop10h 20m

C$ 785

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sun 14/12

6:30 a.m.-12:40 p.m.

1 stop14h 10m

San Francisco

Fri 16/1

4:20 p.m.-1:30 p.m.

1 stop13h 10m

C$ 793

Flights are sorted by cheapest round-trip flights first.

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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

Prices

Airlines

Other information

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$ 782, are often lower during this time because this is during the off-season. The month of September is another great option to travel to San Francisco, with average flight prices from London averaging around C$ 796.

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 Friday. Travellers who choose to depart for San Francisco on a Friday will often find tickets for as low as C$ 881. On the other hand, Tuesday 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$ 2,182.

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

Flying to San Francisco from London at noon is the least expensive time of day to depart. momondo users have found prices as low as C$ 881 when looking at flights departing at noon. In contrast, the most expensive time of day to depart to San Francisco is in the morning when prices are around C$ 1,020.

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 weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around C$ 926 when searching 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$ 857 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.

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

You could potentially save up to 34% 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 September 2025, prices for London to San Francisco flights are approximately 59% 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

Fastest flight time	11h 00m
Direct flights	Every day
Airports in San Francisco	1 airport

The fastest flight from London to San Francisco takes 11h 00m

Direct flights go from London to San Francisco every day.

There is 1 airport near San Francisco: San Francisco (SFO)

Search flight deals

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 11h 00m, 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?
The number of operators available for flights from London to San Francisco Airport is 1 as of September 2025.
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?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from London to San Francisco is Boeing 777 (39.85% of total bookings). The next most popular plane models are Boeing 787-9 Dreamliner (26.10%), Airbus A380-800 (11.50%), and Boeing 777-300ER (9.48%).

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 Airlines	PriceFrom C$ 881	Free Cancellation	Rating 7.4 8,929 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 21 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.

San Mateo

Belmont

Los Altos

San Bruno

Santa Cruz

Newark

Fremont

Turlock

South San Francisco

Mountain View

Sunnyvale

Half Moon Bay

Cupertino

Carmel-by-the-Sea

Mill Valley

Los Banos

Palo Alto

Pacifica

Roseville

Woodland

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.

An easier way to manage your San Francisco trip

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

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Cheap flights from London to San Francisco from C$ 646

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 25/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

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Find the cheapest flights from London to San Francisco

Cheap round-trip flights

Cheap one-way flights

Cheap last-minute flights

Cheap direct flights

Scandinavian Airlines flights from London to San Francisco

Our best Scandinavian Airlines deals on London to San Francisco flight tickets

Lufthansa flights from London to San Francisco

Our best Lufthansa deals on London to San Francisco flight tickets

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Use the filters below to find and compare flights from London to San Francisco that are best for you.

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?

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

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

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?

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.

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

You could potentially save up to 34% 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 September 2025, prices for London to San Francisco flights are approximately 59% more expensive when compared to flights at the same time last year.

What is the cheapest airline that flies from London to San Francisco?

British Airways, KLM, and Delta are the most popular carriers operating from London to San Francisco

How many flights depart from London to San Francisco on average per day?

As of September 2025, 42 flights take off from London and land in San Francisco each day. The most common flight departure time for this route is 10:00a.m., with 57% of daily flights taking off in the afternoon.

How many flights depart from London to San Francisco on average per week?

294 flights are operational weekly from London to San Francisco as of September 2025. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.

When to book flights from London to San Francisco

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

Fastest flight time

Direct flights

Airports in San Francisco

How far is London to San Francisco by plane?

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

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?

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

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

United Airlines Flights From London to San Francisco

Travelling to a place near San Francisco?

Why use momondo?

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

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

How can momondo help me find flights 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?

An easier way to manage your San Francisco trip

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

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing California