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 36 per day as of August 2025. The most frequent departure time is 4:00PM, with 59% of daily flights leaving in the afternoon.

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

Flights via Lisbon (LIS) offer the lowest average round-trip price of $499.

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

Copenhagen (CPH) was the most common stop: 37% of momondo users choosing 1-stop flights on this route connected there.

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

TAP AIR PORTUGAL, WestJet, and Virgin Atlantic 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 August 2025, 254 flights take off from San Francisco and land in London Heathrow Airport each week. The most common flight departure day for this route is Wed, with 17% of weekly flights taking off on this day.

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

Flights connecting via Phoenix (PHX) have the shortest average one-way travel time: 13h 10m.

What airlines fly to London Heathrow Airport?

United Airlines, British Airways and Iberia 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 42% of people opting to fly with this airline when traveling to London Heathrow Airport. Keep in mind that there are 17 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.

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

Frankfurt am Main (FRA) has the shortest average layover time for this route: 1h 28m.

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 refresh daily.

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

There are 17 operators available for flights from San Francisco Airport to London Heathrow Airport as of August 2025.

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify 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 necessary travel and health documents for your London Heathrow Airport 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 license 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.

$316 Cheap Flights from San Francisco to London Heathrow Airport in 2025

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Cheap round-trip flights

7:40 pm - 9:40 pmSFO-LHR

18h 00m1 stop

7:30 pm - 4:10 pmLHR-SFO

27h 40m1 stop

$518Scandinavian Airlines

Find Deal

Mon, Oct 20 - Mon, Oct 27

7:40 pm - 9:35 amSFO-LHR

29h 55m2 stops

6:40 am - 2:35 pmLHR-SFO

15h 55m1 stop

$520Scandinavian Airlines

Find Deal

Thu, Oct 23 - Mon, Nov 3

7:40 pm - 5:40 pmSFO-LHR

14h 00m1 stop

7:50 pm - 7:25 pmLHR-SFO

30h 35m2 stops

$521Scandinavian Airlines

Find Deal

Thu, Oct 23 - Wed, Oct 29

7:40 pm - 9:35 pmSFO-LHR

17h 55m2 stops

9:05 pm - 4:10 pmLHR-SFO

26h 05m2 stops

$523Scandinavian Airlines

Find Deal

Mon, Oct 13 - Tue, Oct 28

4:40 pm - 4:25 pmSFO-LHR

15h 45m2 stops

9:05 pm - 2:35 pmLHR-SFO

25h 30m2 stops

$524Scandinavian Airlines

Find Deal

Sun, Dec 7 - Wed, Dec 10

7:40 pm - 9:35 amSFO-LHR

29h 55m2 stops

7:50 pm - 7:25 pmLHR-SFO

30h 35m2 stops

$525Scandinavian Airlines

Find Deal

Thu, Oct 23 - Wed, Oct 29

4:40 pm - 7:55 pmSFO-LHR

19h 15m2 stops

6:40 am - 10:55 pmLHR-SFO

24h 15m2 stops

$526Scandinavian Airlines

Find Deal

Sat, Nov 8 - Mon, Nov 10

4:40 pm - 9:40 pmSFO-LHR

21h 00m1 stop

5:00 pm - 2:35 pmLHR-SFO

29h 35m1 stop

$528Scandinavian Airlines

Find Deal

Sat, Nov 8 - Sat, Nov 15

7:40 pm - 5:40 pmSFO-LHR

14h 00m1 stop

6:40 am - 4:30 pmLHR-SFO

17h 50m1 stop

$529Scandinavian Airlines

Find Deal

Mon, Oct 13 - Thu, Oct 16

4:40 pm - 4:00 pmSFO-LHR

15h 20m1 stop

7:30 pm - 2:35 pmLHR-SFO

27h 05m1 stop

$530Scandinavian Airlines

Find Deal

Sat, Feb 7 - Wed, Feb 25

Scandinavian Airlines flights from San Francisco to London Heathrow Airport

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

Scandinavian Airlines

Oct 20

SFO7:40 pmSan Francisco

18h 00m

1 stop

LHR9:40 pmLondon Heathrow

Oct 27

LHR7:30 pmLondon Heathrow

27h 40m

1 stop

SFO4:10 pmSan Francisco

$518

Find similar

Scandinavian Airlines

Oct 23

SFO7:40 pmSan Francisco

29h 55m

2 stops

LHR9:35 amLondon Heathrow

Nov 3

LHR6:40 amLondon Heathrow

15h 55m

1 stop

SFO2:35 pmSan Francisco

$520

Find similar

Scandinavian Airlines

Oct 23

SFO7:40 pmSan Francisco

14h 00m

1 stop

LHR5:40 pmLondon Heathrow

Oct 29

LHR7:50 pmLondon Heathrow

30h 35m

2 stops

SFO7:25 pmSan Francisco

$521

Find similar

Virgin Atlantic flights from San Francisco to London Heathrow Airport

Our best Virgin Atlantic deals on San Francisco to London Heathrow Airport flight tickets

Virgin Atlantic

Sep 1

SFO9:20 pmSan Francisco

10h 20m

LHR3:40 pmLondon Heathrow

Sep 16

LHR4:25 pmLondon Heathrow

11h 05m

SFO7:30 pmSan Francisco

$581

Find similar

Virgin Atlantic

Sep 1

SFO9:20 pmSan Francisco

10h 20m

LHR3:40 pmLondon Heathrow

Sep 16

LHR4:25 pmLondon Heathrow

11h 05m

SFO7:30 pmSan Francisco

$584

Find similar

Virgin Atlantic

Sep 1

SFO9:20 pmSan Francisco

10h 20m

LHR3:40 pmLondon Heathrow

Sep 16

LHR5:25 pmLondon Heathrow

14h 04m

1 stop

SFO11:29 pmSan Francisco

$586

Find similar

momondo Fare Finder

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

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Fly to

Route

Depart

Return

Price

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Mon 10/20

7:40 pm-9:40 pm

1 stop18h 00m

London Heathrow

Mon 10/27

7:30 pm-4:10 pm

1 stop27h 40m

$518

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Thu 10/23

7:40 pm-9:35 am

2 stops29h 55m

London Heathrow

Mon 11/3

6:40 am-2:35 pm

1 stop15h 55m

$520

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Thu 10/23

7:40 pm-5:40 pm

1 stop14h 00m

London Heathrow

Wed 10/29

7:50 pm-7:25 pm

2 stops30h 35m

$521

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Mon 10/13

7:40 pm-9:35 pm

2 stops17h 55m

London Heathrow

Tue 10/28

9:05 pm-4:10 pm

2 stops26h 05m

$523

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Sun 12/7

4:40 pm-4:25 pm

2 stops15h 45m

London Heathrow

Wed 12/10

9:05 pm-2:35 pm

2 stops25h 30m

$524

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Thu 10/23

7:40 pm-9:35 am

2 stops29h 55m

London Heathrow

Wed 10/29

7:50 pm-7:25 pm

2 stops30h 35m

$525

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Sat 11/8

4:40 pm-7:55 pm

2 stops19h 15m

London Heathrow

Mon 11/10

6:40 am-10:55 pm

2 stops24h 15m

$526

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Sat 11/8

4:40 pm-9:40 pm

1 stop21h 00m

London Heathrow

Sat 11/15

5:00 pm-2:35 pm

1 stop29h 35m

$528

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Mon 10/13

7:40 pm-5:40 pm

1 stop14h 00m

London Heathrow

Thu 10/16

6:40 am-4:30 pm

1 stop17h 50m

$529

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Sat 2/7

4:40 pm-4:00 pm

1 stop15h 20m

London Heathrow

Wed 2/25

7:30 pm-2:35 pm

1 stop27h 05m

$530

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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

Layovers

Other information

What is the cheapest month to fly to London Heathrow Airport?

The month of October is, on average, the cheapest month to fly to London Heathrow Airport from San Francisco, with most prices found around $643. If you’re not able to fly to London Heathrow Airport in October, then September is your next best option. Flight prices from San Francisco to London Heathrow Airport during September average around $667.

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

Our data shows that Wednesday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $806. The most expensive day to fly to London Heathrow Airport is Saturday, with ticket prices averaging around $947.

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 morning. momondo users have found flights departing from San Francisco to London Heathrow Airport in the morning for as low as $851. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights at noon are often more expensive with an average ticket price of $976.

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 $767 when searching weeks out. 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 $698 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.

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

As of August 2025, prices for San Francisco to London Heathrow Airport flights are approximately 2% cheaper 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 round-trip 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	$384
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 $384. The best round-trip flight deal from San Francisco to London Heathrow Airport found on momondo in the last 72 hours is $610.

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.

Search flight deals

How far is San Francisco to London Heathrow by plane?
London Heathrow is 5341.3 mi away from San Francisco. Typically, this will take 14h 00m 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 refresh daily.
How many operators does momondo search for flights from San Francisco Airport to London Heathrow Airport?
There are 17 operators available for flights from San Francisco Airport to London Heathrow Airport as of August 2025.
How old do you have to be to fly from San Francisco Airport to London Heathrow Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify 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 necessary travel and health documents for your London Heathrow Airport 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 license 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 Heathrow Airport?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from San Francisco to London Heathrow Airport is Boeing 777 (33.08% of total bookings). The next most popular plane models are Boeing 787-9 Dreamliner (28.24%), Airbus A380-800 (14.80%), and Boeing 787 Dreamliner (10.14%).
What is the most popular airline from San Francisco to London Heathrow Airport?
Based on momondo bookings for flights between San Francisco and London Heathrow Airport, the leading airline is United Airlines, making up 33% of the total bookings. Other popular airlines include British Airways with 22%, Iberia with 12%, and Virgin Atlantic with 11%.

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
JetBlue	PriceFrom $151	Free Cancellation	Rating 7.2 2,920 reviews	Search JetBlue flights
Scandinavian Airlines	PriceFrom $335	Free Cancellation	Rating 7.4 1,481 reviews	Search Scandinavian Airlines flights
TAP AIR PORTUGAL	PriceFrom $433	Free Cancellation	Rating 7.1 1,963 reviews	Search TAP AIR PORTUGAL flights
SWISS	PriceFrom $541	Free Cancellation	Rating 7.6 1,712 reviews	Search SWISS flights
British Airways	PriceFrom $545	Free Cancellation	Rating 6.7 7,316 reviews	Search British Airways flights
Delta	PriceFrom $568	Free Cancellation	Rating 7.9 7,977 reviews	Search Delta flights
United Airlines	PriceFrom $570	Free Cancellation	Rating 7.4 8,944 reviews	Search United Airlines flights
Iberia	PriceFrom $572	Free Cancellation	Rating 7.0 2,892 reviews	Search Iberia flights
Finnair	PriceFrom $573	Free Cancellation	Rating 7.6 1,321 reviews	Search Finnair flights
American Airlines	PriceFrom $573	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights

Delta Flights From San Francisco to London Heathrow Airport
Delta flight deals from San Francisco to London Heathrow Airport start from $568 round-trip. Over the 14 Delta flights for this route in a normal week, average airfare is usually $810 round-trip - but some users have found much cheaper deals with momondo.
KLM Flights From San Francisco to London Heathrow Airport
KLM (7.8/10 from 1,382 reviews) operates around 14 flights from San Francisco to London Heathrow Airport in any given week. The average KLM airfare for this route is around $975, with deals from around $664 rare but found on momondo. Referenced prices are for round-trip San Francisco to London Heathrow Airport flight searches in the last 72 hours.

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Salisbury

Brentwood

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Colchester

Stratford-upon-Avon

Watford

Why use momondo?

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

It is quick and easy to find San Francisco to London 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 London that suits you.

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 helps you find the best flight between San Francisco and London 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 San Francisco to London right now. Can momondo alert me if prices change?

Yes. momondo can track prices for San Francisco to London flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your London Heathrow Airport 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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Flights to London Luton Airportfrom $401

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Flights to London Southend Airportfrom $429

Flights to Belfast City Airportfrom $512

Cheap flights from San Francisco to London from $316

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 9/26. 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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Find the cheapest flights from San Francisco to London

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Scandinavian Airlines flights from San Francisco to London Heathrow Airport

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

Virgin Atlantic flights from San Francisco to London Heathrow Airport

Our best Virgin Atlantic deals on San Francisco to London Heathrow Airport flight tickets

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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?

Our data shows that Wednesday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $806. The most expensive day to fly to London Heathrow Airport is Saturday, with ticket prices averaging around $947.

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.

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

As of August 2025, prices for San Francisco to London Heathrow Airport flights are approximately 2% cheaper when compared to flights at the same time last year.

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

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

What airlines fly to London Heathrow Airport?

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

Copenhagen (CPH) was the most common stop: 37% of momondo users choosing 1-stop flights on this route connected there.

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

Flights via Lisbon (LIS) offer the lowest average round-trip price of $499.

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

Flights connecting via Phoenix (PHX) have the shortest average one-way travel time: 13h 10m.

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

Frankfurt am Main (FRA) has the shortest average layover time for this route: 1h 28m.

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 36 per day as of August 2025. The most frequent departure time is 4:00PM, with 59% of daily flights leaving in the afternoon.

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

As of August 2025, 254 flights take off from San Francisco and land in London Heathrow Airport each week. The most common flight departure day for this route is Wed, with 17% of weekly 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

Delta Flights From San Francisco to London Heathrow Airport

KLM Flights From San Francisco to London Heathrow Airport

Traveling 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, 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 London

Popular cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo