Which layover airport has the shortest travel time from London to San Francisco?

Flights connecting via Dublin (DUB) have the shortest average one-way travel time: 14h 40m.

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

The number of flights available between London and San Francisco is 39 per day as of October 2025. The most frequent departure time is 10:00AM, with 57% of daily flights leaving in the afternoon.

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

British Airways, TAP AIR PORTUGAL, and Virgin Atlantic are the most popular carriers operating from London to San Francisco

What airlines fly to San Francisco?

British Airways, United Airlines and Lufthansa are the top three most popular airlines that fly to San Francisco from London according to our data. British Airways is the first choice among our users, with 38% of people opting to fly with this airline when traveling to San Francisco. Keep in mind that there are 11 different airlines that fly to San Francisco on a routine basis, so you have a few additional options to choose from.

Which layover airport offers the lowest fares from London to San Francisco?

Flights via Copenhagen (CPH) offer the lowest average round-trip price of $577.

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

As of October 2025, 274 flights take off from London and land in San Francisco each week. The most common flight departure day for this route is Fri, with 15% of weekly flights taking off on this day.

Which airport is the most popular layover for flights between London and San Francisco?

Copenhagen (CPH) was the most common stop: 44% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport has the shortest connection time from London to San Francisco?

Copenhagen (CPH) has the shortest average layover time for this route: 2h 04m.

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

Prices for flights from London to San Francisco Airport are refreshed on a daily basis.

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

There are 11 operators available for flights from London to San Francisco Airport as of October 2025.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London to San Francisco Airport.

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

The required travel and health documents for your San Francisco Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Francisco Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$442 Cheap Flights from London to San Francisco in 2025/26

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6:00 am - 2:30 pmLHR-SFO

16h 30m1 stop

7:10 pm - 6:55 pmSFO-LHR

15h 45m1 stop

$509TAP AIR PORTUGAL

Find Deal

Wed, Nov 12 - Fri, Dec 5

6:40 am - 2:35 pmLHR-SFO

15h 55m1 stop

4:40 pm - 6:30 pmSFO-LHR

17h 50m1 stop

$538Scandinavian Airlines

Find Deal

Mon, Nov 10 - Mon, Nov 17

6:40 am - 2:35 pmLHR-SFO

15h 55m1 stop

4:40 pm - 9:40 pmSFO-LHR

21h 00m1 stop

$539Scandinavian Airlines

Find Deal

Mon, Feb 9 - Mon, Mar 2

9:35 pm - 11:50 amLGW-SFO

22h 15m2 stops

1:55 pm - 8:10 pmSFO-LGW

22h 15m2 stops

$551Multiple Airlines

Find Deal

Fri, Nov 21 - Sun, Nov 30

9:45 pm - 11:50 amSTN-SFO

22h 05m2 stops

1:55 pm - 9:20 pmSFO-STN

23h 25m2 stops

$551Multiple Airlines

Find Deal

Fri, Nov 21 - Sun, Nov 30

6:35 am - 2:50 pmLHR-SFO

16h 15m1 stop

12:50 pm - 7:25 amSFO-LHR

10h 35mnonstop

$570Lufthansa

Find Deal

Tue, Nov 11 - Mon, Nov 17

11:10 am - 7:35 pmLHR-SFO

16h 25m1 stop

4:15 pm - 1:30 pmSFO-LHR

13h 15m1 stop

$571Lufthansa

Find Deal

Wed, Nov 26 - Wed, Dec 3

6:40 pm - 4:30 pmLGW-SFO

29h 50m1 stop

7:25 pm - 5:50 pmSFO-LGW

14h 25m1 stop

$572SWISS

Find Deal

Mon, Nov 17 - Mon, Dec 1

6:40 pm - 4:30 pmLGW-SFO

29h 50m1 stop

7:25 pm - 5:50 pmSFO-LGW

14h 25m1 stop

$574SWISS

Find Deal

Mon, Nov 17 - Mon, Dec 1

12:30 pm - 11:07 amLGW-SFO

30h 37m2 stops

9:00 am - 9:00 amSFO-LGW

40h 00m2 stops

$615American Airlines

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Wed, Nov 12 - Sun, Nov 16

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

Nov 12

LHR6:00 amLondon Heathrow

16h 30m

1 stop

SFO2:30 pmSan Francisco

Dec 5

SFO7:10 pmSan Francisco

15h 45m

1 stop

LHR6:55 pmLondon Heathrow

$509

Find similar

TAP AIR PORTUGAL

Nov 20

LGW4:00 pmLondon Gatwick

32h 05m

1 stop

SFO4:05 pmSan Francisco

Dec 1

SFO4:35 pmSan Francisco

20h 00m

2 stops

LGW8:35 pmLondon Gatwick

$555

Find similar

TAP AIR PORTUGAL

Mar 17

LGW4:35 pmLondon Gatwick

29h 55m

1 stop

SFO3:30 pmSan Francisco

Mar 31

SFO4:35 pmSan Francisco

33h 10m

1 stop

LGW9:45 amLondon Gatwick

$559

Find similar

Scandinavian Airlines flights from London to San Francisco

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

Scandinavian Airlines

Nov 10

LHR6:40 amLondon Heathrow

15h 55m

1 stop

SFO2:35 pmSan Francisco

Nov 17

SFO4:40 pmSan Francisco

17h 50m

1 stop

LHR6:30 pmLondon Heathrow

$538

Find similar

Scandinavian Airlines

Feb 9

LHR6:40 amLondon Heathrow

15h 55m

1 stop

SFO2:35 pmSan Francisco

Mar 2

SFO4:40 pmSan Francisco

21h 00m

1 stop

LHR9:40 pmLondon Heathrow

$539

Find similar

Scandinavian Airlines

Nov 14

LHR6:40 amLondon Heathrow

15h 55m

1 stop

SFO2:35 pmSan Francisco

Nov 16

SFO4:40 pmSan Francisco

15h 20m

1 stop

LHR4:00 pmLondon Heathrow

$540

Find similar

Fly from

Fly to

Route

Depart

Return

Price

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 11/12

6:00 am-2:30 pm

1 stop16h 30m

San Francisco

Fri 12/5

7:10 pm-6:55 pm

1 stop15h 45m

$509

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Mon 11/10

6:40 am-2:35 pm

1 stop15h 55m

San Francisco

Mon 11/17

4:40 pm-6:30 pm

1 stop17h 50m

$538

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Mon 2/9

6:40 am-2:35 pm

1 stop15h 55m

San Francisco

Mon 3/2

4:40 pm-9:40 pm

1 stop21h 00m

$539

LondonSan Francisco

LGW - SFO

LGWSFO

London Gatwick

Fri 11/21

9:35 pm-11:50 am

2 stops22h 15m

San Francisco

Sun 11/30

1:55 pm-8:10 pm

2 stops22h 15m

$551

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Fri 11/21

9:45 pm-11:50 am

2 stops22h 05m

San Francisco

Sun 11/30

1:55 pm-9:20 pm

2 stops23h 25m

$551

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Tue 11/11

6:35 am-2:50 pm

1 stop16h 15m

San Francisco

Mon 11/17

12:50 pm-7:25 am

Nonstop10h 35m

$570

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 11/26

11:10 am-7:35 pm

1 stop16h 25m

San Francisco

Wed 12/3

4:15 pm-1:30 pm

1 stop13h 15m

$571

LondonSan Francisco

LGW - SFO

LGWSFO

London Gatwick

Mon 11/17

6:40 pm-4:30 pm

1 stop29h 50m

San Francisco

Mon 12/1

7:25 pm-5:50 pm

1 stop14h 25m

$572

LondonSan Francisco

LGW - SFO

LGWSFO

London Gatwick

Mon 11/17

6:40 pm-4:30 pm

1 stop29h 50m

San Francisco

Mon 12/1

7:25 pm-5:50 pm

1 stop14h 25m

$574

LondonSan Francisco

LGW - SFO

LGWSFO

London Gatwick

Wed 11/12

12:30 pm-11:07 am

2 stops30h 37m

San Francisco

Sun 11/16

9:00 am-9:00 am

2 stops40h 00m

$615

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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

Layovers

Other information

What is the cheapest month to fly to San Francisco?

If you aren’t able to travel to San Francisco during the month of February, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $575.

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 Thursday when prices can be found for as low as $653. The most expensive day to fly to San Francisco is Sunday, with ticket prices averaging around $759.

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

Our data shows that the cheapest London to San Francisco flights are usually those with departure times in the evening. Our users have found flights to San Francisco in the evening for as low as $682. Flights in the afternoon are often more expensive with an average ticket price of $725.

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 $675 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 $629 on momondo.

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.

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

As of October 2025, prices for London to San Francisco flights are approximately 85% 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	$561
Fastest flight time	11h 00m
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 $561. The best round-trip flight deal from London to San Francisco found on momondo in the last 72 hours is $588.

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?
A flight from London to San Francisco will travel around 5349.7 mi. In terms of flight time, this usually takes a little over 14h 05m.
When did momondo last update prices for flights from London to San Francisco Airport?
Prices for flights from London to San Francisco Airport are refreshed on a daily basis.
How many operators does momondo search for flights from London to San Francisco Airport?
There are 11 operators available for flights from London to San Francisco Airport as of October 2025.
How old do you have to be to fly from London to San Francisco Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London to San Francisco Airport.
What documentation or ID do you need to fly to San Francisco Airport?
The required travel and health documents for your San Francisco Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Francisco Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from London to San Francisco?
Based on momondo bookings for flights between London and San Francisco, the leading plane model is Boeing 777, making up 40.44% of the total bookings. Other popular models include Boeing 787-9 Dreamliner with 24.92%, Airbus A380-800 with 12.41%, and Boeing 777-300ER with 10.43%.
What is the most popular airline from London to San Francisco?
momondo data reveals that the most frequently booked airline on the route from London to San Francisco is British Airways, representing 24% of all bookings. The subsequent popular airlines are United Airlines at 21%, Lufthansa at 11%, and Delta at 8%.

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
Aer Lingus	PriceFrom $492	Free Cancellation	Rating 7.2 1,335 reviews	Search Aer Lingus flights
British Airways	PriceFrom $510	Free Cancellation	Rating 6.7 7,453 reviews	Search British Airways flights
Brussels Airlines	PriceFrom $530	Free Cancellation	Rating 7.2 365 reviews	Search Brussels Airlines flights
Virgin Atlantic	PriceFrom $538	Free Cancellation	Rating 7.4 667 reviews	Search Virgin Atlantic flights
Austrian Airlines	PriceFrom $539	Free Cancellation	Rating 7.6 853 reviews	Search Austrian Airlines flights
United Airlines	PriceFrom $543	Free Cancellation	Rating 7.4 8,973 reviews	Search United Airlines flights
Lufthansa	PriceFrom $552	Free Cancellation	Rating 6.8 7,480 reviews	Search Lufthansa flights
Delta	PriceFrom $555	Free Cancellation	Rating 7.9 7,973 reviews	Search Delta flights
American Airlines	PriceFrom $589	Free Cancellation	Rating 7.2 11,043 reviews	Search American Airlines flights
Scandinavian Airlines	PriceFrom $591	Free Cancellation	Rating 7.4 1,531 reviews	Search Scandinavian Airlines flights

Delta Flights From London to San Francisco
Delta flies from London to San Francisco around 10 times per week, with 7,973 momondo users rating the airline 7.9/10. The cheapest Delta deal from London to San Francisco in the last 72 hours was $555 (round-trip), much lower than the average airfare cost of $708 for Delta flights on this route.
Austrian Airlines Flights From London to San Francisco
$539 is the best Austrian Airlines flight deal from London to San Francisco found on momondo over the last 72 hours. The average Austrian Airlines ticket price found was closer to $727, however, with flight time and availability significantly affecting the price. Austrian Airlines (7.6/10 from 853 user reviews) flies into San Francisco from London 21 times in an average week so prices can vary.

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Big Sur

Santa Clara

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Daly City

Berkeley

Walnut Creek

Half Moon Bay

Vallejo

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Redwood City

Turlock

South San Francisco

Why use momondo?

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

It is quick and easy to find London to San Francisco flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to San Francisco that suits you.

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

Yes. momondo enables you to select and highlight flights to San Francisco from London with this policy.

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 not ready to book a flight from London to San Francisco now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to San Francisco and let you know when they 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.

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Cheap flights from London to San Francisco from $442

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 2/23. 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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Big names and deals

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TAP AIR PORTUGAL flights from London to San Francisco

Our best TAP AIR PORTUGAL deals on London to San Francisco flight tickets

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Our best Scandinavian Airlines 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?

If you aren’t able to travel to San Francisco during the month of February, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $575.

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 Thursday when prices can be found for as low as $653. The most expensive day to fly to San Francisco is Sunday, with ticket prices averaging around $759.

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

Our data shows that the cheapest London to San Francisco flights are usually those with departure times in the evening. Our users have found flights to San Francisco in the evening for as low as $682. Flights in the afternoon are often more expensive with an average ticket price of $725.

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 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.

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

As of October 2025, prices for London to San Francisco flights are approximately 85% 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, TAP AIR PORTUGAL, and Virgin Atlantic are the most popular carriers operating from London to San Francisco

What airlines fly to San Francisco?

Which airport is the most popular layover for flights between London and San Francisco?

Copenhagen (CPH) was the most common stop: 44% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from London to San Francisco?

Flights via Copenhagen (CPH) offer the lowest average round-trip price of $577.

Which layover airport has the shortest travel time from London to San Francisco?

Flights connecting via Dublin (DUB) have the shortest average one-way travel time: 14h 40m.

Which layover airport has the shortest connection time from London to San Francisco?

Copenhagen (CPH) has the shortest average layover time for this route: 2h 04m.

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

The number of flights available between London and San Francisco is 39 per day as of October 2025. The most frequent departure time is 10:00AM, with 57% of daily flights leaving in the afternoon.

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

As of October 2025, 274 flights take off from London and land in San Francisco each week. The most common flight departure day for this route is Fri, with 15% of weekly flights 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

Best Price Found

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?

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

Delta Flights From London to San Francisco

Austrian Airlines Flights From London to San Francisco

Traveling 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.