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.

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 has had the least delays on this route over the last 12 months, with about 12% of their flights experiencing any sort of delay.

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

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

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.

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

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

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

As of November 2025, there is 1 operator available to choose from for flights from London Heathrow Airport to San Francisco Airport.

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

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

The necessary travel and health documents for your San Francisco 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.

C$ 705 Cheap Flights from London Heathrow Airport to San Francisco in 2025/26

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

The number of flights available between London Heathrow Airport and San Francisco is 30 per day as of November 2025. The most frequent departure time is 11:00a.m., with 58% of daily flights leaving at noon.

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

The number of flights available between London Heathrow Airport and San Francisco is 211 per week as of November 2025. The most frequent departure day is Mon, with 15% of weekly flights leaving on this day.

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9:05 p.m. - 2:35 p.m.LHR-SFO

25h 30m2 stops

4:40 p.m. - 4:25 p.m.SFO-LHR

15h 45m2 stops

C$ 817Scandinavian Airlines

Find Deal

Thu, 26 Feb - Sun, 1 Mar

5:00 p.m. - 2:35 p.m.LHR-SFO

29h 35m1 stop

4:40 p.m. - 4:00 p.m.SFO-LHR

15h 20m1 stop

C$ 819Scandinavian Airlines

Find Deal

Sun, 15 Feb - Sun, 22 Feb

9:05 p.m. - 2:35 p.m.LHR-SFO

25h 30m2 stops

4:40 p.m. - 9:20 p.m.SFO-LHR

20h 40m2 stops

C$ 821Scandinavian Airlines

Find Deal

Thu, 15 Jan - Sun, 18 Jan

7:50 p.m. - 2:35 p.m.LHR-SFO

26h 45m2 stops

5:40 p.m. - 4:25 p.m.SFO-LHR

15h 45m2 stops

C$ 839Scandinavian Airlines

Find Deal

Mon, 2 Mar - Tue, 10 Mar

3:25 p.m. - 6:45 p.m.LHR-SFO

11h 20mdirect

3:50 p.m. - 1:15 p.m.SFO-LHR

13h 25m1 stop

C$ 843British Airways

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Thu, 22 Jan - Fri, 30 Jan

7:50 a.m. - 4:35 p.m.LHR-SFO

16h 45m1 stop

8:40 p.m. - 3:10 p.m.SFO-LHR

10h 30mdirect

C$ 845British Airways

Find Deal

Sun, 14 Dec - Wed, 7 Jan

10:05 a.m. - 9:02 p.m.LHR-SFO

18h 57m1 stop

10:30 p.m. - 10:10 p.m.SFO-LHR

15h 40m1 stop

C$ 846British Airways

Find Deal

Thu, 25 Dec - Sat, 10 Jan

7:05 p.m. - 3:12 p.m.LHR-SFO

28h 07m2 stops

4:35 p.m. - 1:15 p.m.SFO-LHR

13h 40m1 stop

C$ 848British Airways

Find Deal

Mon, 2 Mar - Mon, 16 Mar

11:55 a.m. - 9:02 p.m.LHR-SFO

17h 07m1 stop

8:40 p.m. - 3:10 p.m.SFO-LHR

10h 30mdirect

C$ 849British Airways

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Thu, 25 Dec - Sat, 10 Jan

11:45 a.m. - 3:00 p.m.LHR-SFO

11h 15mdirect

9:40 p.m. - 3:10 p.m.SFO-LHR

10h 30mdirect

C$ 853British Airways

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Mon, 2 Mar - Tue, 10 Mar

Finnair flights from London Heathrow Airport to San Francisco

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

Finnair

26 Feb

LHR10:20 a.m.London Heathrow

18h 22m

2 stops

SFO8:42 p.m.San Francisco

16 Mar

SFO10:03 a.m.San Francisco

16h 57m

1 stop

LHR10:00 a.m.London Heathrow

C$ 898

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Finnair

26 Feb

LHR3:25 p.m.London Heathrow

11h 20m

SFO6:45 p.m.San Francisco

15 Mar

SFO11:30 a.m.San Francisco

19h 30m

1 stop

LHR2:00 p.m.London Heathrow

C$ 915

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Lufthansa flights from London Heathrow Airport to San Francisco

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

Lufthansa

14 Apr

LHR6:30 a.m.London Heathrow

14h 10m

1 stop

SFO12:40 p.m.San Francisco

29 Apr

SFO2:40 p.m.San Francisco

14h 00m

1 stop

LHR12:40 p.m.London Heathrow

C$ 901

Find similar

Lufthansa

26 Nov

LHR1:45 p.m.London Heathrow

11h 15m

SFO5:00 p.m.San Francisco

9 Dec

SFO12:50 p.m.San Francisco

10h 35m

LHR7:25 a.m.London Heathrow

C$ 1,367

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momondo Fare Finder

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

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Fly to

Route

Depart

Return

Price

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Thu 26/2

9:05 p.m.-2:35 p.m.

2 stops25h 30m

San Francisco

Sun 1/3

4:40 p.m.-4:25 p.m.

2 stops15h 45m

C$ 817

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sun 15/2

5:00 p.m.-2:35 p.m.

1 stop29h 35m

San Francisco

Sun 22/2

4:40 p.m.-4:00 p.m.

1 stop15h 20m

C$ 819

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Thu 15/1

9:05 p.m.-2:35 p.m.

2 stops25h 30m

San Francisco

Sun 18/1

4:40 p.m.-9:20 p.m.

2 stops20h 40m

C$ 821

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Mon 2/3

7:50 p.m.-2:35 p.m.

2 stops26h 45m

San Francisco

Tue 10/3

5:40 p.m.-4:25 p.m.

2 stops15h 45m

C$ 839

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Thu 22/1

3:25 p.m.-6:45 p.m.

Nonstop11h 20m

San Francisco

Fri 30/1

3:50 p.m.-1:15 p.m.

1 stop13h 25m

C$ 843

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sun 14/12

7:50 a.m.-4:35 p.m.

1 stop16h 45m

San Francisco

Wed 7/1

8:40 p.m.-3:10 p.m.

Nonstop10h 30m

C$ 845

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Thu 25/12

10:05 a.m.-9:02 p.m.

1 stop18h 57m

San Francisco

Sat 10/1

10:30 p.m.-10:10 p.m.

1 stop15h 40m

C$ 846

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Mon 2/3

7:05 p.m.-3:12 p.m.

2 stops28h 07m

San Francisco

Mon 16/3

4:35 p.m.-1:15 p.m.

1 stop13h 40m

C$ 848

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Thu 25/12

11:55 a.m.-9:02 p.m.

1 stop17h 07m

San Francisco

Sat 10/1

8:40 p.m.-3:10 p.m.

Nonstop10h 30m

C$ 849

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Mon 2/3

11:45 a.m.-3:00 p.m.

Nonstop11h 15m

San Francisco

Tue 10/3

9:40 p.m.-3:10 p.m.

Nonstop10h 30m

C$ 853

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

The cheapest month to fly to San Francisco from London Heathrow Airport is in February. Flight prices, which tend to average around C$ 801, are often lower during this time because this is during the off-season. The month of September is another great option to travel to San Francisco, with average flight prices from London Heathrow Airport averaging around C$ 818.

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

The cheapest day to depart from London Heathrow Airport to San Francisco is on a Thursday. Travellers who choose to depart for San Francisco on a Thursday will often find tickets for as low as C$ 819. On the other hand, Saturday is the most expensive day to depart from London Heathrow Airport because it is more convenient for both business and leisure travellers. As a result, prices tend to be around C$ 1,903.

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

Flying to San Francisco from London Heathrow Airport at noon is the least expensive time of day to depart. momondo users have found prices as low as C$ 900 when looking at flights departing at noon. In contrast, the most expensive time of day to depart to San Francisco is in the morning when prices are around C$ 1,166.

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

Fly from London Heathrow to San Francisco for the best London Heathrow - 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 Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around C$ 957 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 Heathrow Airport for as low as C$ 886 on momondo.

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

There are 2 cabin classes available to choose from on London Heathrow 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 Heathrow Airport to San Francisco flights?

No. A direct flight is the cheapest option for a flight between London Heathrow Airport to San Francisco.

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

As of November 2025, prices for London Heathrow Airport to San Francisco flights are approximately 26% more expensive when compared to flights at the same time last year.

When to book flights from London Heathrow Airport to San Francisco

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

Estimated round-trip price

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

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

Best price found	C$ 626
Fastest flight time	11h 15m
Direct flights	Every day
Airports in San Francisco	1 airport

The best one-way flight to San Francisco from London Heathrow Airport in the past 72 hours is C$ 626. The best round-trip flight deal from London Heathrow Airport to San Francisco found on momondo in the last 72 hours is C$ 3,945.

The fastest flight from London Heathrow Airport to San Francisco takes 11h 15m

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

There is 1 airport near San Francisco: San Francisco (SFO)

Search flight deals

How far is London Heathrow to San Francisco by plane?
San Francisco is 8596.0 km away from London Heathrow. Flights usually cover this in 11h 05m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from London Heathrow Airport to San Francisco Airport?
Prices for flights from London Heathrow Airport to San Francisco Airport are updated daily.
How many operators does momondo search for flights from London Heathrow Airport to San Francisco Airport?
As of November 2025, there is 1 operator available to choose from for flights from London Heathrow Airport to San Francisco Airport.
How old do you have to be to fly from London Heathrow Airport 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 Heathrow Airport to San Francisco Airport.
What documentation or ID do you need to fly to San Francisco Airport?
The necessary travel and health documents for your San Francisco 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 London Heathrow Airport to San Francisco?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from London Heathrow Airport to San Francisco is Boeing 777 (41.15% of total bookings). The next most popular plane models are Boeing 787-9 Dreamliner (23.46%), Airbus A380-800 (13.92%), and Boeing 777-300ER (11.08%).

Best airlines flying from London Heathrow Airport to San Francisco

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

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom C$ 897	Free Cancellation	Rating 7.4 9,046 reviews		Search United Airlines flights

United Airlines Flights From London Heathrow Airport to San Francisco
United Airlines flies from London Heathrow Airport to San Francisco around 14 times per week, with 9,046 momondo users rating the airline 7.4/10. The cheapest United Airlines deal from London Heathrow Airport to San Francisco in the last 72 hours was C$ 897 (round-trip), much lower than the average airfare cost of C$ 897 for United Airlines flights on this route.

San Mateo

Belmont

Los Altos

San Bruno

Santa Cruz

Newark

Fremont

Carmel-by-the-Sea

Turlock

South San Francisco

Palo Alto

Cupertino

Mill Valley

Morgan Hill

Los Banos

Mountain View

Pacifica

Woodland

Roseville

Berkeley

Why use momondo?

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

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

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

momondo does allow users to show only those flights to San Francisco from London which offer a flexible booking policy as well as other useful filters and features.

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?

Of course. momondo tracks the price of London to San Francisco flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Cheap flights from London Heathrow Airport to San Francisco from C$ 705

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Finnair flights from London Heathrow Airport to San Francisco

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Lufthansa flights from London Heathrow Airport to San Francisco

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

momondo Fare Finder

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

See travel insights to San Francisco from

How to get the cheapest flight ticket from London Heathrow Airport 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?

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 Heathrow to San Francisco flight route?

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

How far in advance should I book a flight to San Francisco?

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

There are 2 cabin classes available to choose from on London Heathrow 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 Heathrow Airport to San Francisco flights?

No. A direct flight is the cheapest option for a flight between London Heathrow Airport to San Francisco.

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

As of November 2025, prices for London Heathrow Airport to San Francisco flights are approximately 26% more expensive when compared to flights at the same time last year.

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

British Airways, Austrian Airlines, and United Airlines are the most popular carriers operating from London Heathrow 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 has had the least 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 Heathrow Airport to San Francisco on average per day?

The number of flights available between London Heathrow Airport and San Francisco is 30 per day as of November 2025. The most frequent departure time is 11:00a.m., with 58% of daily flights leaving at noon.

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

The number of flights available between London Heathrow Airport and San Francisco is 211 per week as of November 2025. The most frequent departure day is Mon, with 15% of weekly flights leaving on this day.

When to book flights from London Heathrow Airport to San Francisco

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

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

Best price found

Fastest flight time

Direct flights

Airports in San Francisco

How far is London Heathrow to San Francisco by plane?

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

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

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

Best airlines flying from London Heathrow Airport to San Francisco

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

United Airlines Flights From London Heathrow Airport 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, 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 the United States

Airports servicing California