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

As of November 2025, 211 flights take off from London and land in San Francisco each week. The most common flight departure day for this route is Tue, with 15% of weekly flights taking off on this day.

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

As of November 2025, there are 30 flights per day flying from London to San Francisco. The most common time of day flights depart is 11:00, with 59% of flights taking off at midday.

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

How often are flights from London to San Francisco delayed?

Historically, on average around 13% of flights between London and San Francisco have experienced a delay on any given week. The average delay length over the past 12 months has been 140 minutes.

Which airline has the best punctuality record on London to San Francisco flights?

According to our data, Virgin Atlantic have had the fewest delays on this route over the last 12 months, with about 12% of their flights experiencing any sort of delay.

What is the most punctual flight time for London to San Francisco flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

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

United Airlines, SWISS, and British Airways 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 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 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 licence, 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.

$678 Cheap Flights from London to San Francisco in 2025/26

1 adult

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from London to San Francisco

Round-trip

One-way

Last minute

Direct

Cheap return flights

Enter your travel dates to find the best prices.

06:40 - 14:35LHR-SFO

15h 55m1 stop

16:40 - 17:40SFO-LHR

17h 00m1 stop

$881Scandinavian Airlines

Find Deal

Fri, 5 Dec - Sun, 7 Dec

06:40 - 14:35LHR-SFO

15h 55m1 stop

17:40 - 18:50SFO-LHR

18h 10m2 stops

$885Scandinavian Airlines

Find Deal

Sat, 28 Feb - Sun, 15 Mar

06:40 - 14:35LHR-SFO

15h 55m1 stop

16:40 - 18:50SFO-LHR

18h 10m2 stops

$887Scandinavian Airlines

Find Deal

Sat, 6 Dec - Mon, 12 Jan

11:40 - 15:40LHR-SFO

11h 00mdirect

10:31 - 09:00SFO-LHR

14h 29m1 stop

$888Delta

Find Deal

Mon, 23 Mar - Wed, 8 Apr

09:35 - 16:05LGW-SFO

62h 30m2 stops

16:35 - 09:50SFO-LGW

33h 15m1 stop

$898TAP AIR PORTUGAL

Find Deal

Wed, 4 Feb - Wed, 18 Feb

09:35 - 16:05LGW-SFO

62h 30m2 stops

16:35 - 09:50SFO-LGW

33h 15m1 stop

$899TAP AIR PORTUGAL

Find Deal

Wed, 4 Feb - Wed, 18 Feb

18:40 - 16:30LGW-SFO

29h 50m1 stop

19:25 - 17:50SFO-LGW

14h 25m1 stop

$938SWISS

Find Deal

Mon, 23 Feb - Tue, 3 Mar

09:20 - 16:30LCY-SFO

15h 10m1 stop

19:25 - 17:05SFO-LCY

13h 40m1 stop

$1,028SWISS

Find Deal

Fri, 23 Jan - Wed, 28 Jan

17:10 - 11:45LCY-SFO

26h 35m1 stop

13:45 - 17:20SFO-LCY

19h 35m1 stop

$1,037Virgin Atlantic

Find Deal

Wed, 1 Apr - Sun, 12 Apr

17:50 - 11:50LCY-SFO

26h 00m1 stop

07:00 - 08:50SFO-LCY

17h 50m2 stops

$1,040Virgin Atlantic

Find Deal

Fri, 20 Feb - Tue, 24 Feb

Scandinavian Airlines flights from London to San Francisco

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

Scandinavian Airlines

5 Dec

LHR06:40London Heathrow

15h 55m

1 stop

SFO14:35San Francisco

7 Dec

SFO16:40San Francisco

17h 00m

1 stop

LHR17:40London Heathrow

$881

Find similar

Scandinavian Airlines

28 Feb

LHR06:40London Heathrow

15h 55m

1 stop

SFO14:35San Francisco

15 Mar

SFO17:40San Francisco

18h 10m

2 stops

LHR18:50London Heathrow

$885

Find similar

Scandinavian Airlines

6 Dec

LHR06:40London Heathrow

15h 55m

1 stop

SFO14:35San Francisco

12 Jan

SFO16:40San Francisco

18h 10m

2 stops

LHR18:50London Heathrow

$887

Find similar

Delta flights from London to San Francisco

Our best Delta deals on London to San Francisco flight tickets

Delta

23 Mar

LHR11:40London Heathrow

11h 00m

SFO15:40San Francisco

8 Apr

SFO10:31San Francisco

14h 29m

1 stop

LHR09:00London Heathrow

$888

Find similar

Delta

23 Mar

LHR11:40London Heathrow

11h 00m

SFO15:40San Francisco

10 Apr

SFO07:00San Francisco

17h 50m

1 stop

LHR08:50London Heathrow

$918

Find similar

Delta

18 Feb

LHR06:30London Heathrow

13h 20m

1 stop

SFO11:50San Francisco

25 Feb

SFO06:00San Francisco

20h 55m

1 stop

LHR10:55London Heathrow

$932

Find similar

Fly from

Fly to

Route

Depart

Return

Price

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Fri 5/12

06:40-14:35

1 stop15h 55m

San Francisco

Sun 7/12

16:40-17:40

1 stop17h 00m

$881

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sat 28/2

06:40-14:35

1 stop15h 55m

San Francisco

Sun 15/3

17:40-18:50

2 stops18h 10m

$885

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sat 6/12

06:40-14:35

1 stop15h 55m

San Francisco

Mon 12/1

16:40-18:50

2 stops18h 10m

$887

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Mon 23/3

11:40-15:40

Nonstop11h 00m

San Francisco

Wed 8/4

10:31-09:00

1 stop14h 29m

$888

LondonSan Francisco

LGW - SFO

LGWSFO

London Gatwick

Wed 4/2

09:35-16:05

2 stops62h 30m

San Francisco

Wed 18/2

16:35-09:50

1 stop33h 15m

$898

LondonSan Francisco

LGW - SFO

LGWSFO

London Gatwick

Wed 4/2

09:35-16:05

2 stops62h 30m

San Francisco

Wed 18/2

16:35-09:50

1 stop33h 15m

$899

LondonSan Francisco

LGW - SFO

LGWSFO

London Gatwick

Mon 23/2

18:40-16:30

1 stop29h 50m

San Francisco

Tue 3/3

19:25-17:50

1 stop14h 25m

$938

LondonSan Francisco

LCY - SFO

LCYSFO

London City

Fri 23/1

09:20-16:30

1 stop15h 10m

San Francisco

Wed 28/1

19:25-17:05

1 stop13h 40m

$1,028

LondonSan Francisco

LCY - SFO

LCYSFO

London City

Wed 1/4

17:10-11:45

1 stop26h 35m

San Francisco

Sun 12/4

13:45-17:20

1 stop19h 35m

$1,037

LondonSan Francisco

LCY - SFO

LCYSFO

London City

Fri 20/2

17:50-11:50

1 stop26h 00m

San Francisco

Tue 24/2

07:00-08:50

2 stops17h 50m

$1,040

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 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

Delays

Other information

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?

If you aren’t able to travel during the month of September, then book flights to San Francisco from London during February instead. Flights to San Francisco in February, while not as cheap as those in September, still average around $895.

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

According to our data, Wednesday is the cheapest day to fly to San Francisco from London. The lowest ticket price found for a Wednesday departure recently was $1,036. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from London to San Francisco for around $2,197.

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 in the morning. momondo users have found flights departing from London to San Francisco in the morning for as low as $1,031. 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 at midday when prices are $2,451 on average. Flights to San Francisco from London at midday 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 weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around $1,048 when searching weeks before you fly. 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 $970 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 23% 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 November 2025, prices for London to San Francisco flights are approximately 12% 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	$2,203
Fastest flight time	11h 00m
Direct flights	Every day
Airports in San Francisco	1 airport

The best flight deal from London to San Francisco found on momondo in the last 72 hours is $2,203

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 straight-line distance from London to San Francisco is 8609.4 km. Typically, this will take 11h 00m by plane in normal conditions.
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 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 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 licence, 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?
momondo data reveals that the most frequently booked plane model on the route from London to San Francisco is Boeing 777, representing 41.15% of all bookings. The subsequent popular models are Boeing 787-9 Dreamliner at 23.46%, Airbus A380-800 at 13.92%, and Boeing 777-300ER at 11.08%.

Redwood City

Sausalito

Carmel-by-the-Sea

Watsonville

Emeryville

San Mateo

Pacifica

Salinas

Burlingame

Pacific Grove

Pebble Beach

San Lorenzo

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. All flights to San Francisco from London on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search for London to San Francisco flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Price alerts on flights to San Francisco from London are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your San Francisco 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.

Start using Trips

Find my bookings

Get notified when prices go down

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

1 adult

Sun 21/12

Sun 28/12

Email me momondo's favourite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States

Airports servicing California

Burbank Bob Hope Airport

Fresno Airterminal Airport

Los Angeles Airport

Long Beach Municipal Airport

Sacramento Intl Airport

Santa Ana J. Wayne/Orange Cnty Airport

Orange County Airport

Yosemite National Park Airport

San Francisco Bay Area Airport

Popular Cities in the United States

Look for other cheap flights to Los Angelesfrom $868

Look for other cheap flights to New Yorkfrom $1,051

Look for other cheap flights to Honolulufrom $749

Look for other cheap flights to Las Vegasfrom $1,147

Look for other cheap flights to Miamifrom $1,570

Look for other cheap flights to Orlandofrom $1,281

Look for other cheap flights to Chicagofrom $1,511

Look for other cheap flights to Dallasfrom $1,400

Look for other cheap flights to Washington, D.C.from $1,281

Look for other cheap flights to Bostonfrom $1,079

Look for other cheap flights to Seattlefrom $1,080

Look for other cheap flights to Atlantafrom $1,082

Cheap flights from London to San Francisco from $774

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 4/1. 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 London to San Francisco

Cheap return 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

Delta flights from London to San Francisco

Our best Delta deals on London to San Francisco flight tickets

momondo Fare Finder

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

What is the cheapest month to fly to San Francisco?

If you aren’t able to travel during the month of September, then book flights to San Francisco from London during February instead. Flights to San Francisco in February, while not as cheap as those in September, still average around $895.

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 23% 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 November 2025, prices for London to San Francisco flights are approximately 12% more expensive when compared to flights at the same time last year.

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

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

How often are flights from London to San Francisco delayed?

Historically, on average around 13% of flights between London and San Francisco have experienced a delay on any given week. The average delay length over the past 12 months has been 140 minutes.

What is the most punctual flight time for London to San Francisco flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on London to San Francisco flights?

According to our data, Virgin Atlantic have had the fewest delays on this route over the last 12 months, with about 12% of their flights experiencing any sort of delay.

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

As of November 2025, there are 30 flights per day flying from London to San Francisco. The most common time of day flights depart is 11:00, with 59% of flights taking off at midday.

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

As of November 2025, 211 flights take off from London and land in San Francisco each week. The most common flight departure day for this route is Tue, 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 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?

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, 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 States

Airports servicing California