Which airlines fly to London Heathrow Airport?

United Airlines, Virgin Atlantic and British Airways are the top three most popular airlines that fly to London Heathrow Airport from San Francisco according to our data. United Airlines is the first choice among our users, with 33% of people opting to fly with this airline when travelling to London Heathrow Airport. Keep in mind that there are 7 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.

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

According to our data, Virgin Atlantic have had the fewest delays on this route over the last 12 months, with about 8% of their flights experiencing any sort of delay.

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

Generally, flights departing at night tend to experience fewer delays. Flights departing in the early afternoon have, in the past, seen delays more frequently in comparison.

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

The number of flights available between San Francisco and London Heathrow Airport is 31 per day as of November 2025. The most frequent departure time is 17:00, with 72% of daily flights leaving in the afternoon.

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

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

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

Lufthansa, Scandinavian Airlines, and British Airways are the most popular carriers operating from San Francisco to London Heathrow

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

As of November 2025, there are 217 flights per week flying from San Francisco to London Heathrow Airport. The most common day of the week flights depart is Mon, with 14% of flights taking off on this day.

How often are flights from San Francisco to London delayed?

Historically, on average around 12% of flights between San Francisco and London have experienced a delay on any given week. The average delay length over the past 12 months has been 156 minutes.

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

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

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

There are 7 operators available for flights from San Francisco Airport to London Heathrow Airport as of November 2025.

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

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 layovers 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 Heathrow Airport.

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

The travel and health documents required for your trip to London Heathrow 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 London Heathrow Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

£277 Cheap Flights from San Francisco to London Heathrow Airport in 2025/26

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11:05 - 17:40SFO-LHR

22h 35m2 stops

19:50 - 14:40LHR-SFO

26h 50m2 stops

£447Scandinavian Airlines

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Wed, 15 Apr - Mon, 20 Apr

20:40 - 15:10SFO-LHR

10h 30mdirect

11:45 - 15:00LHR-SFO

11h 15mdirect

£447British Airways

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Wed, 7 Jan - Thu, 15 Jan

16:40 - 21:40SFO-LHR

21h 00m1 stop

06:40 - 14:35LHR-SFO

15h 55m1 stop

£448Scandinavian Airlines

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Thu, 4 Dec - Sat, 13 Dec

16:30 - 10:40SFO-LHR

10h 10mdirect

09:40 - 21:42LHR-SFO

20h 02m1 stop

£449Delta

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Sun, 7 Dec - Fri, 9 Jan

16:45 - 09:35SFO-LHR

32h 50m2 stops

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32h 20m1 stop

£450Scandinavian Airlines

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Thu, 23 Apr - Sat, 9 May

13:20 - 10:00SFO-LHR

12h 40m1 stop

11:40 - 14:40LHR-SFO

11h 00mdirect

£451Delta

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Tue, 6 Jan - Thu, 22 Jan

12:50 - 07:25SFO-LHR

10h 35mdirect

09:00 - 16:30LHR-SFO

15h 30m1 stop

£451Multiple Airlines

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Fri, 20 Feb - Fri, 27 Feb

22:50 - 20:35SFO-LHR

13h 45m1 stop

11:10 - 18:55LHR-SFO

15h 45m1 stop

£452United Airlines

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Tue, 6 Jan - Tue, 20 Jan

08:25 - 06:40SFO-LHR

14h 15m1 stop

11:10 - 19:35LHR-SFO

16h 25m1 stop

£453Multiple Airlines

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Sun, 14 Dec - Thu, 25 Dec

17:25 - 12:00SFO-LHR

10h 35mdirect

09:00 - 16:30LHR-SFO

15h 30m1 stop

£454United Airlines

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Thu, 8 Jan - Thu, 22 Jan

United Airlines flights from San Francisco to London Heathrow Airport

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

United Airlines

6 Jan

SFO22:50San Francisco

13h 45m

1 stop

LHR20:35London Heathrow

20 Jan

LHR11:10London Heathrow

15h 45m

1 stop

SFO18:55San Francisco

£452

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United Airlines

8 Jan

SFO17:25San Francisco

10h 35m

LHR12:00London Heathrow

22 Jan

LHR09:00London Heathrow

15h 30m

1 stop

SFO16:30San Francisco

£454

Find similar

United Airlines

8 Jan

SFO17:25San Francisco

10h 35m

LHR12:00London Heathrow

14 Jan

LHR11:10London Heathrow

16h 25m

1 stop

SFO19:35San Francisco

£457

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Air Canada flights from San Francisco to London Heathrow Airport

Our best Air Canada deals on San Francisco to London Heathrow Airport flight tickets

Air Canada

19 Nov

SFO13:20San Francisco

14h 30m

1 stop

LHR11:50London Heathrow

25 Nov

LHR09:00London Heathrow

19h 50m

2 stops

SFO20:50San Francisco

£463

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Air Canada

7 Jan

SFO08:25San Francisco

28h 10m

2 stops

LHR20:35London Heathrow

15 Jan

LHR11:05London Heathrow

42h 17m

2 stops

SFO21:22San Francisco

£474

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Air Canada

24 Nov

SFO07:30San Francisco

19h 50m

2 stops

LHR11:20London Heathrow

12 Dec

LHR13:25London Heathrow

15h 57m

1 stop

SFO21:22San Francisco

£485

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San Francisco

Wed 15/4

11:05-17:40

2 stops22h 35m

London Heathrow

Mon 20/4

19:50-14:40

2 stops26h 50m

£447

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Wed 7/1

20:40-15:10

Nonstop10h 30m

London Heathrow

Thu 15/1

11:45-15:00

Nonstop11h 15m

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San FranciscoLondon

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San Francisco

Thu 4/12

16:40-21:40

1 stop21h 00m

London Heathrow

Sat 13/12

06:40-14:35

1 stop15h 55m

£448

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Sun 7/12

16:30-10:40

Nonstop10h 10m

London Heathrow

Fri 9/1

09:40-21:42

1 stop20h 02m

£449

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Thu 23/4

16:45-09:35

2 stops32h 50m

London Heathrow

Sat 9/5

14:20-14:40

1 stop32h 20m

£450

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Tue 6/1

13:20-10:00

1 stop12h 40m

London Heathrow

Thu 22/1

11:40-14:40

Nonstop11h 00m

£451

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Fri 20/2

12:50-07:25

Nonstop10h 35m

London Heathrow

Fri 27/2

09:00-16:30

1 stop15h 30m

£451

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Tue 6/1

22:50-20:35

1 stop13h 45m

London Heathrow

Tue 20/1

11:10-18:55

1 stop15h 45m

£452

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Sun 14/12

08:25-06:40

1 stop14h 15m

London Heathrow

Thu 25/12

11:10-19:35

1 stop16h 25m

£453

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Thu 8/1

17:25-12:00

Nonstop10h 35m

London Heathrow

Thu 22/1

09:00-16:30

1 stop15h 30m

£454

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

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 cheapest month to fly to London Heathrow Airport?

In general, October is the cheapest month to fly from San Francisco to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £506. The month of February is another great option to travel to London Heathrow Airport, with average flight prices from San Francisco averaging around £507.

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

On average, the least expensive day to fly to London Heathrow Airport from San Francisco is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as £511. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Thursday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Thursday is £652.

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

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the evening. momondo users have found flights departing from San Francisco to London Heathrow Airport in the evening for as low as £557. 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 £815 on average. Flights to London Heathrow Airport from San Francisco at midday are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest San Francisco to London Heathrow flight route?

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

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

You are more likely to see cheaper flights to London Heathrow Airport from San Francisco when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £583 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from San Francisco for as low as £552 on momondo.

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

There are 4 cabin classes available to choose from on San Francisco to London Heathrow 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 Heathrow Airport flights?

You could potentially save up to 11% on your flight if you consider stops on a San Francisco to London Heathrow Airport flight.

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

As of November 2025, prices for San Francisco to London Heathrow Airport flights are approximately 22% more expensive when compared to flights at the same time last year.

When to book flights from San Francisco to London Heathrow Airport

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

Estimated return price

Cheap San Francisco to London Heathrow Airport (SFO to LHR) flight deals and tips

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

Best price found	£298
Fastest flight time	10h 10m
Direct flights	Every day

The best one-way flight to London Heathrow Airport from San Francisco in the past 72 hours is £298. The best return flight deal from San Francisco to London Heathrow Airport found on momondo in the last 72 hours is £486.

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

Direct flights go from San Francisco to London Heathrow Airport every day.

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How far is San Francisco to London Heathrow by plane?
The distance between San Francisco and London Heathrow is about 5341.3 mi. Typically, this will take 10h 10m by plane in normal conditions.
When did momondo last update prices for flights from San Francisco Airport to London Heathrow Airport?
Prices for flights from San Francisco Airport to London Heathrow Airport are refreshed on a daily basis.
How many operators does momondo search for flights from San Francisco Airport to London Heathrow Airport?
There are 7 operators available for flights from San Francisco Airport to London Heathrow Airport as of November 2025.
How old do you have to be to fly from San Francisco Airport to London Heathrow Airport?
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 layovers 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 Heathrow Airport.
What documentation or ID do you need to fly to London Heathrow Airport?
The travel and health documents required for your trip to London Heathrow 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 London Heathrow 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 San Francisco to London Heathrow Airport?
momondo data reveals that the most frequently booked plane model on the route from San Francisco to London Heathrow Airport is Boeing 777, representing 34.27% of all bookings. The subsequent popular models are Airbus A380-800 at 20.31%, Boeing 787-9 Dreamliner at 18.61%, and Airbus A380 at 6.89%.
What is the most popular airline from San Francisco to London Heathrow Airport?
Based on momondo bookings for this flight route, the most popular airline on flight routes from San Francisco to London Heathrow Airport is United Airlines (28% of total bookings). The next most popular airlines are Virgin Atlantic (28%), British Airways (16%), and Lufthansa (14%).

Best airlines flying from San Francisco to London Heathrow Airport

Compare and see reviews for airlines that fly from San Francisco to London Heathrow Airport with momondo

Airline	Rating	Free Cancellation	Price
Scandinavian Airlines	PriceFrom £362	Free Cancellation	Rating 7.4 1,582 reviews	Search Scandinavian Airlines flights
KLM	PriceFrom £372	Free Cancellation	Rating 7.7 1,411 reviews	Search KLM flights
Virgin Atlantic	PriceFrom £376	Free Cancellation	Rating 7.5 673 reviews	Search Virgin Atlantic flights
British Airways	PriceFrom £394	Free Cancellation	Rating 6.7 7,528 reviews	Search British Airways flights
Lufthansa	PriceFrom £421	Free Cancellation	Rating 6.8 7,576 reviews	Search Lufthansa flights
United Airlines	PriceFrom £425	Free Cancellation	Rating 7.4 9,015 reviews	Search United Airlines flights
Iberia	PriceFrom £434	Free Cancellation	Rating 7.0 3,020 reviews	Search Iberia flights

KLM Flights From San Francisco to London Heathrow Airport
The lowest priced KLM flight from San Francisco to London Heathrow Airport from the last 72 hours was £372. Generally, KLM has 7 flights on this route every week with an average price of £482. KLM is rated 7.7/10 by our users.
Virgin Atlantic Flights From San Francisco to London Heathrow Airport
Across 673 Virgin Atlantic reviews on momondo, the average score is 7.5/10. Virgin Atlantic flies from San Francisco to London Heathrow Airport about 7 times each week, with ticket deals ranging from £376 to £573. Price data is based on momondo searches in the last 72 hours.

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from San Francisco to London . Millions of users trust and use momondo every year so you are in good hands.

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

Flights from San Francisco to London with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo provides multiple filters to help you find the best flight to London from San Francisco. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Of course. momondo tracks the price of San Francisco to London 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 London Heathrow Airport trip

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Cheap flights from San Francisco to London from £277

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 18/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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

See travel insights to London from

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

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 London Heathrow Airport?

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

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

What is the cheapest San Francisco to London Heathrow flight route?

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

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

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

There are 4 cabin classes available to choose from on San Francisco to London Heathrow 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 Heathrow Airport flights?

You could potentially save up to 11% on your flight if you consider stops on a San Francisco to London Heathrow Airport flight.

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

As of November 2025, prices for San Francisco to London Heathrow Airport flights are approximately 22% more expensive when compared to flights at the same time last year.

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

Lufthansa, Scandinavian Airlines, and British Airways are the most popular carriers operating from San Francisco to London Heathrow

Which airlines fly to London Heathrow Airport?

How often are flights from San Francisco to London delayed?

Historically, on average around 12% of flights between San Francisco and London have experienced a delay on any given week. The average delay length over the past 12 months has been 156 minutes.

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

Generally, flights departing at night tend to experience fewer delays. Flights departing in the early afternoon have, in the past, seen delays more frequently in comparison.

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

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

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

According to our data, Virgin Atlantic have had the fewest delays on this route over the last 12 months, with about 8% of their flights experiencing any sort of delay.

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

The number of flights available between San Francisco and London Heathrow Airport is 31 per day as of November 2025. The most frequent departure time is 17:00, with 72% of daily flights leaving in the afternoon.

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

As of November 2025, there are 217 flights per week flying from San Francisco to London Heathrow Airport. The most common day of the week flights depart is Mon, with 14% of flights taking off on this day.

When to book flights from San Francisco to London Heathrow Airport

Cheap San Francisco to London Heathrow Airport (SFO to LHR) flight deals and tips

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

Best price found

Fastest flight time

Direct flights

How far is San Francisco to London Heathrow by plane?

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

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

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

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

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

What is the most popular airline from San Francisco to London Heathrow Airport?

Best airlines flying from San Francisco to London Heathrow Airport

Compare and see reviews for airlines that fly from San Francisco to London Heathrow Airport with momondo

KLM Flights From San Francisco to London Heathrow Airport

Virgin Atlantic Flights From San Francisco to London Heathrow Airport

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 Heathrow Airport 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 London

Popular Cities in the United Kingdom