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

The number of flights available between San Francisco and London is 42 per day as of September 2025. The most frequent departure time is 16:00, with 59% of daily flights leaving in the afternoon.

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

294 flights are operational weekly from San Francisco to London 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.

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

United Airlines, SWISS, and Delta are the most popular carriers operating from San Francisco to London

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

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

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

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 stopovers 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 San Francisco Airport to London.

What documentation or ID do you need to fly to London?

The necessary travel and health documents for your London trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$577 Cheap Flights from San Francisco to London in 2025

Q: What is the typical price of a round-trip flight between San Francisco and London?

Prices are currently low for flights on this route. Typical prices usually range from $915 to $1,117. The lowest price recently found on this route was $791.

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Find the cheapest flights from San Francisco to London

Round-trip

One-way

Last minute

Direct

Cheap return flights

16:40 - 19:55SFO-LHR

19h 15m2 stops

10:20 - 22:55LHR-SFO

20h 35m2 stops

$791Scandinavian Airlines

Find Deal

Sat, 8 Nov - Mon, 10 Nov

12:30 - 21:40SFO-LHR

25h 10m2 stops

19:30 - 14:35LHR-SFO

27h 05m1 stop

$795Scandinavian Airlines

Find Deal

Wed, 12 Nov - Wed, 19 Nov

07:00 - 09:20SFO-LHR

18h 20m2 stops

19:30 - 14:35LHR-SFO

27h 05m1 stop

$797Scandinavian Airlines

Find Deal

Thu, 8 Jan - Fri, 16 Jan

12:30 - 17:40SFO-LHR

21h 10m2 stops

19:30 - 14:35LHR-SFO

27h 05m1 stop

$798Scandinavian Airlines

Find Deal

Wed, 12 Nov - Wed, 19 Nov

21:30 - 18:30SFO-LHR

38h 00m2 stops

17:00 - 14:35LHR-SFO

29h 35m1 stop

$800Scandinavian Airlines

Find Deal

Thu, 30 Oct - Sun, 2 Nov

17:35 - 11:25SFO-LHR

34h 50m1 stop

06:00 - 14:30LHR-SFO

16h 30m1 stop

$810TAP AIR PORTUGAL

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Wed, 29 Oct - Wed, 5 Nov

13:20 - 11:50SFO-LHR

15h 30m1 stop

20:05 - 16:30LHR-SFO

28h 25m1 stop

$825

Find Deal

Mon, 27 Oct - Mon, 3 Nov

13:05 - 07:25SFO-LHR

10h 20mdirect

08:45 - 16:10LHR-SFO

15h 25m1 stop

$855United Airlines

Find Deal

Mon, 6 Oct - Tue, 14 Oct

13:05 - 07:25SFO-LHR

10h 20mdirect

09:00 - 19:00LHR-SFO

18h 00m1 stop

$860United Airlines

Find Deal

Mon, 6 Oct - Wed, 15 Oct

17:30 - 10:40SFO-LHR

10h 10mdirect

11:40 - 14:40LHR-SFO

11h 00mdirect

$864Virgin Atlantic

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Wed, 29 Oct - Wed, 5 Nov

United Airlines flights from San Francisco to London

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

United Airlines

6 Oct

SFO13:05San Francisco

10h 20m

LHR07:25London Heathrow

21 Oct

LHR13:45London Heathrow

34h 50m

1 stop

SFO16:35San Francisco

$855

Find similar

United Airlines

6 Oct

SFO13:05San Francisco

10h 20m

LHR07:25London Heathrow

15 Oct

LHR09:00London Heathrow

18h 00m

1 stop

SFO19:00San Francisco

$860

Find similar

United Airlines

8 Oct

SFO13:25San Francisco

13h 45m

1 stop

LHR11:10London Heathrow

14 Oct

LHR08:45London Heathrow

15h 25m

1 stop

SFO16:10San Francisco

$861

Find similar

Delta flights from San Francisco to London

Our best Delta deals on San Francisco to London flight tickets

Delta

11 Nov

SFO16:30San Francisco

10h 10m

LHR10:40London Heathrow

18 Nov

LHR06:20London Heathrow

15h 05m

1 stop

SFO13:25San Francisco

$872

Find similar

Delta

11 Nov

SFO16:30San Francisco

10h 10m

LHR10:40London Heathrow

18 Nov

LHR06:30London Heathrow

13h 20m

1 stop

SFO11:50San Francisco

$873

Find similar

Delta

11 Nov

SFO13:58San Francisco

14h 52m

1 stop

LHR12:50London Heathrow

20 Nov

LHR06:20London Heathrow

15h 05m

1 stop

SFO13:25San Francisco

$878

Find similar

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Sat 8/11

16:40-19:55

2 stops19h 15m

London Heathrow

Mon 10/11

10:20-22:55

2 stops20h 35m

$791

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Wed 12/11

12:30-21:40

2 stops25h 10m

London Heathrow

Wed 19/11

19:30-14:35

1 stop27h 05m

$795

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Thu 8/1

07:00-09:20

2 stops18h 20m

London Heathrow

Fri 16/1

19:30-14:35

1 stop27h 05m

$797

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Wed 12/11

12:30-17:40

2 stops21h 10m

London Heathrow

Wed 19/11

19:30-14:35

1 stop27h 05m

$798

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Thu 30/10

21:30-18:30

2 stops38h 00m

London Heathrow

Sun 2/11

17:00-14:35

1 stop29h 35m

$800

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Wed 29/10

17:35-11:25

1 stop34h 50m

London Heathrow

Wed 5/11

06:00-14:30

1 stop16h 30m

$810

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Mon 27/10

13:20-11:50

1 stop15h 30m

London Heathrow

Mon 3/11

20:05-16:30

1 stop28h 25m

$825

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Mon 6/10

13:05-07:25

Nonstop10h 20m

London Heathrow

Tue 14/10

08:45-16:10

1 stop15h 25m

$855

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Mon 6/10

13:05-07:25

Nonstop10h 20m

London Heathrow

Wed 15/10

09:00-19:00

1 stop18h 00m

$860

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Wed 29/10

17:30-10:40

Nonstop10h 10m

London Heathrow

Wed 5/11

11:40-14:40

Nonstop11h 00m

$864

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

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 typical price of a round-trip flight between San Francisco and London?

What is the cheapest month to fly to London?

If you aren’t able to travel during the month of October, then book flights to London from San Francisco during September instead. Flights to London in September, while not as cheap as those in October, still average around $992.

What is the cheapest day to depart on your flight to London?

Our data shows that Monday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as $1,001. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from San Francisco to London for around $1,744.

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

The cheapest time of day to fly to London is in the evening when flights can be purchased for as low as $1,006. In contrast, the most expensive time of day to depart to London is in the afternoon when prices are around $1,151.

What is the cheapest San Francisco to London flight route?

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

How far in advance should I book a flight to London?

You are more likely to see cheaper flights to London from San Francisco when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around $1,153 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from San Francisco for as low as $1,061 on momondo.

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

There are 3 cabin classes available to choose from on San Francisco to London 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 San Francisco to London flights?

You could potentially save up to 13% on your flight if you consider stops on a San Francisco to London flight.

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

As of September 2025, prices for San Francisco to London flights are approximately 94% more expensive when compared to flights at the same time last year.

When to book flights from San Francisco to London

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

Estimated return price

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

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

Fastest flight time	10h 10m
Direct flights	Every day
Airports in London	1 airport

The fastest flight from San Francisco to London takes 10h 10m

Direct flights go from San Francisco to London every day.

There is 1 airport near London: London Heathrow (LHR)

Search flight deals

How far is San Francisco to London by plane?
London is 8609.4 km away from San Francisco. By plane, this route typically takes 10h 10m.
When did momondo last update prices for flights from San Francisco Airport to London?
Prices for flights from San Francisco Airport to London are updated daily.
How old do you have to be to fly from San Francisco Airport to London?
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 stopovers 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 San Francisco Airport to London.
What documentation or ID do you need to fly to London?
The necessary travel and health documents for your London trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from San Francisco to London?
momondo data reveals that the most frequently booked plane model on the route from San Francisco to London is Boeing 777, representing 30.73% of all bookings. The subsequent popular models are Boeing 787-9 Dreamliner at 25.52%, Airbus A380-800 at 14.36%, and Boeing 777-300ER at 10.16%.

Gatwick

Hounslow

Brentford

Wembley

Dover

Ipswich

Abingdon

Richmond

Eastbourne

Slough

Chichester

Canterbury

Deal

Kingston upon Thames

Brentwood

Milton Keynes

Guildford

Sutton

Maidstone

Watford

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from San Francisco to London. momondo saves you time and could save you money on your trip.

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

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

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

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 San Francisco to London.

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

Yes momondo offers price alerts on flights to London from San Francisco. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your London trip

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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Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

London City Airport

London Gatwick Airport

London Heathrow Airport

London Luton Airport

London Stansted Airport

Popular Cities in the United Kingdom

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Look for other cheap flights to Leedsfrom $1,673

Cheap flights from San Francisco to London from $577

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Francisco to London departing on 15/10. 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

Price Alerts

Find the cheapest flights from San Francisco to London

Cheap return flights

Cheap one-way flights

Cheap last-minute flights

Cheap direct flights

United Airlines flights from San Francisco to London

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

Delta flights from San Francisco to London

Our best Delta deals on San Francisco to London flight tickets

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

See travel insights to London from

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

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 San Francisco and London?

What is the cheapest month to fly to London?

If you aren’t able to travel during the month of October, then book flights to London from San Francisco during September instead. Flights to London in September, while not as cheap as those in October, still average around $992.

What is the cheapest day to depart on your flight to London?

Our data shows that Monday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as $1,001. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from San Francisco to London for around $1,744.

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

The cheapest time of day to fly to London is in the evening when flights can be purchased for as low as $1,006. In contrast, the most expensive time of day to depart to London is in the afternoon when prices are around $1,151.

What is the cheapest San Francisco to London flight route?

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

How far in advance should I book a flight to London?

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

There are 3 cabin classes available to choose from on San Francisco to London 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 San Francisco to London flights?

You could potentially save up to 13% on your flight if you consider stops on a San Francisco to London flight.

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

As of September 2025, prices for San Francisco to London flights are approximately 94% more expensive when compared to flights at the same time last year.

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

United Airlines, SWISS, and Delta are the most popular carriers operating from San Francisco to London

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

The number of flights available between San Francisco and London is 42 per day as of September 2025. The most frequent departure time is 16:00, with 59% of daily flights leaving in the afternoon.

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

294 flights are operational weekly from San Francisco to London 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 San Francisco to London

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

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

Fastest flight time

Direct flights

Airports in London

How far is San Francisco to London by plane?

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

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

What documentation or ID do you need to fly to London?

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

Travelling to a place near London?

Why use momondo?

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

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

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

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

An easier way to manage your London trip

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.

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 Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 49.5 km from London