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Cheap flights from London Heathrow Airport to San Francisco from £257

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 Heathrow Airport to San Francisco departing on 5/2. 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 London Heathrow Airport to San Francisco

Cheap return flights

These are some of the best return flight deals from London Heathrow Airport to San Francisco that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from London Heathrow Airport to San Francisco.

Cheap last-minute flights

Planning a quick getaway from London Heathrow Airport to San Francisco? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to San Francisco, so you can enjoy a seamless trip without stopovers.

Cheap bus & train deals from London Heathrow Airport to San Francisco

Find recent round-trip train or bus tickets from London Heathrow Airport to San Francisco.

All round-trip flight deals to San Francisco

The cheapest plane tickets to San Francisco found on KAYAK recently.
18:30 - 14:40LHR-SFO
28h 10m1 stop
16:40 - 18:55SFO-LHR
18h 15m1 stop
£365TAP AIR PORTUGAL
Find Deal
Tue, 14 Jan - Sat, 25 Jan
18:30 - 14:40LHR-SFO
28h 10m1 stop
19:15 - 22:40SFO-LHR
19h 25m1 stop
£367TAP AIR PORTUGAL
Find Deal
Tue, 14 Jan - Fri, 24 Jan
06:15 - 18:00LHR-SFO
19h 45m1 stop
22:15 - 16:35SFO-LHR
10h 20mdirect
£436Virgin Atlantic
Find Deal
Fri, 9 May - Sat, 17 May
06:30 - 12:35LHR-SFO
14h 05m1 stop
14:20 - 13:30SFO-LHR
15h 10m1 stop
£441Lufthansa
Find Deal
Fri, 6 Dec - Thu, 12 Dec
06:30 - 12:40LHR-SFO
14h 10m1 stop
12:55 - 07:25SFO-LHR
10h 30mdirect
£454Lufthansa
Find Deal
Wed, 16 Apr - Tue, 29 Apr
11:45 - 15:00LHR-SFO
11h 15mdirect
20:50 - 15:25SFO-LHR
10h 35mdirect
£479British Airways
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Fri, 6 Dec - Thu, 16 Jan
16:55 - 23:59LHR-SFO
15h 04m1 stop
21:40 - 15:15SFO-LHR
10h 35mdirect
£483British Airways
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Wed, 5 Mar - Sun, 9 Mar
08:55 - 16:25LHR-SFO
15h 30m1 stop
00:30 - 07:30SFO-LHR
23h 00m1 stop
£485United Airlines
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Fri, 6 Dec - Wed, 11 Dec
11:40 - 14:45LHR-SFO
11h 05mdirect
06:15 - 07:05SFO-LHR
16h 50m1 stop
£486Virgin Atlantic
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Fri, 17 Jan - Mon, 20 Jan
13:00 - 20:11LHR-SFO
15h 11m1 stop
08:15 - 10:00SFO-LHR
17h 45m1 stop
£489United Airlines
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Sat, 1 Mar - Wed, 7 May
15:15 - 13:06LHR-SFO
53h 51m2 stops
Wed, 5 Feb
15:15 - 13:05LHR-SFO
53h 50m2 stops
Fri, 24 Jan
09:30 - 16:00LHR-SFO
14h 30m1 stop
£472Lufthansa
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Sat, 7 Dec
11:15 - 18:41LHR-SFO
15h 26m1 stop
£486British Airways
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Mon, 25 Nov
14:30 - 21:51LHR-SFO
15h 21m1 stop
£496Lufthansa
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Mon, 25 Nov
11:10 - 20:07LHR-SFO
16h 57m1 stop
£500Austrian Airlines
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Fri, 10 Jan
10:05 - 13:15LHR-SFO
11h 10mdirect
£502Austrian Airlines
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Thu, 28 Nov
15:20 - 18:45LHR-SFO
11h 25mdirect
£519British Airways
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Sun, 16 Feb
11:45 - 15:00LHR-SFO
11h 15mdirect
£527Finnair
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Fri, 13 Dec
11:45 - 15:00LHR-SFO
11h 15mdirect
£554Finnair
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Wed, 25 Dec
06:30 - 11:50LHR-SFO
13h 20m1 stop
16:40 - 10:55SFO-LHR
10h 15mdirect
£417Delta
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Mon, 25 Nov - Tue, 10 Dec
06:30 - 11:50LHR-SFO
13h 20m1 stop
16:40 - 10:55SFO-LHR
10h 15mdirect
£418Delta
Find Deal
Mon, 25 Nov - Tue, 10 Dec
13:45 - 16:55LHR-SFO
11h 10mdirect
12:50 - 07:25SFO-LHR
10h 35mdirect
£466Lufthansa
Find Deal
Fri, 22 Nov - Thu, 28 Nov
20:25 - 11:50LHR-SFO
23h 25m1 stop
16:40 - 10:55SFO-LHR
10h 15mdirect
£468Virgin Atlantic
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Mon, 25 Nov - Tue, 10 Dec
06:30 - 11:50LHR-SFO
13h 20m1 stop
16:40 - 10:55SFO-LHR
10h 15mdirect
£469Virgin Atlantic
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Mon, 25 Nov - Tue, 10 Dec
10:05 - 13:15LHR-SFO
11h 10mdirect
13:00 - 10:10SFO-LHR
13h 10m1 stop
£470Lufthansa
Find Deal
Thu, 21 Nov - Sun, 1 Dec
10:05 - 13:15LHR-SFO
11h 10mdirect
08:30 - 07:10SFO-LHR
14h 40m1 stop
£494United Airlines
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Fri, 22 Nov - Sat, 30 Nov
10:05 - 13:15LHR-SFO
11h 10mdirect
17:25 - 12:00SFO-LHR
10h 35mdirect
£495United Airlines
Find Deal
Mon, 25 Nov - Tue, 10 Dec
15:20 - 18:45LHR-SFO
11h 25mdirect
20:40 - 15:15SFO-LHR
10h 35mdirect
£530British Airways
Find Deal
Fri, 22 Nov - Wed, 27 Nov
11:45 - 15:00LHR-SFO
11h 15mdirect
17:30 - 12:00SFO-LHR
10h 30mdirect
£590British Airways
Find Deal
Sat, 23 Nov - Thu, 28 Nov
10:10 - 13:15LHR-SFO
11h 05mdirect
19:20 - 13:50SFO-LHR
10h 30mdirect
Sun, 20 Apr - Fri, 9 May
11:40 - 14:45LHR-SFO
11h 05mdirect
16:40 - 10:55SFO-LHR
10h 15mdirect
£437Delta
Find Deal
Mon, 10 Feb - Sun, 23 Feb
16:50 - 19:50LHR-SFO
11h 00mdirect
22:15 - 16:35SFO-LHR
10h 20mdirect
£442Virgin Atlantic
Find Deal
Fri, 9 May - Sat, 17 May
11:15 - 14:15LHR-SFO
11h 00mdirect
22:15 - 16:35SFO-LHR
10h 20mdirect
£448Virgin Atlantic
Find Deal
Fri, 9 May - Sat, 17 May
10:35 - 13:40LHR-SFO
11h 05mdirect
15:55 - 10:25SFO-LHR
10h 30mdirect
£448Lufthansa
Find Deal
Mon, 28 Apr - Mon, 12 May
11:45 - 15:00LHR-SFO
11h 15mdirect
17:30 - 12:00SFO-LHR
10h 30mdirect
£467British Airways
Find Deal
Tue, 11 Feb - Sun, 23 Feb
11:45 - 15:00LHR-SFO
11h 15mdirect
15:30 - 10:00SFO-LHR
10h 30mdirect
£476British Airways
Find Deal
Sun, 19 Jan - Thu, 15 May
10:05 - 13:15LHR-SFO
11h 10mdirect
17:25 - 12:00SFO-LHR
10h 35mdirect
£478Lufthansa
Find Deal
Fri, 17 Jan - Fri, 31 Jan
13:45 - 16:55LHR-SFO
11h 10mdirect
17:25 - 12:00SFO-LHR
10h 35mdirect
£499United Airlines
Find Deal
Tue, 24 Dec - Mon, 30 Dec
10:05 - 13:15LHR-SFO
11h 10mdirect
17:25 - 12:00SFO-LHR
10h 35mdirect
£509United Airlines
Find Deal
Sat, 11 Jan - Mon, 27 Jan

Scandinavian Airlines flights from London Heathrow Airport to San Francisco

Our best Scandinavian Airlines deals on London Heathrow Airport to San Francisco flight tickets
Scandinavian Airlines
2 Feb
LHR10:20London Heathrow
37h 20m
1 stop
SFO15:40San Francisco
9 Feb
SFO17:30San Francisco
20h 10m
1 stop
LHR21:40London Heathrow
Scandinavian Airlines
15 Jan
LHR13:55London Heathrow
33h 45m
2 stops
SFO15:40San Francisco
19 Jan
SFO17:30San Francisco
16h 10m
1 stop
LHR17:40London Heathrow
Scandinavian Airlines
6 Dec
LHR19:30London Heathrow
28h 10m
1 stop
SFO15:40San Francisco
31 Jan
SFO17:30San Francisco
14h 30m
1 stop
LHR16:00London Heathrow

Delta flights from London Heathrow Airport to San Francisco

Our best Delta deals on London Heathrow Airport to San Francisco flight tickets
Delta
25 Nov
LHR06:30London Heathrow
13h 20m
1 stop
SFO11:50San Francisco
10 Dec
SFO16:40San Francisco
10h 15m
LHR10:55London Heathrow
Delta
26 Jan
LHR06:30London Heathrow
13h 20m
1 stop
SFO11:50San Francisco
7 Apr
SFO16:05San Francisco
10h 20m
LHR10:25London Heathrow
Delta
26 Nov
LHR06:30London Heathrow
13h 20m
1 stop
SFO11:50San Francisco
30 Jan
SFO16:40San Francisco
10h 15m
LHR10:55London Heathrow

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 from London Heathrow Airport to San Francisco?

February. The cheapest time of year to fly to San Francisco from London Heathrow Airport is February. The most expensive is July.

What is the cheapest day to depart London Heathrow Airport for San Francisco?

Tuesday. The cheapest day of the week is usually Tuesday. The most expensive is usually Sunday.

When is the cheapest time to fly from London Heathrow Airport to San Francisco?

At midday. London Heathrow Airport to San Francisco flights are approximately 12% more expensive in the afternoon than at midday

How far in advance should you book London Heathrow Airport to San Francisco flights?

22 days before. The cheapest time to buy a flight from London Heathrow Airport to San Francisco is approximately 22 days to departure

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

There are 3 cabin classes available to choose from on London Heathrow Airport 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?

You could potentially save up to 44% on your flight if you consider stops on a London Heathrow Airport to San Francisco flight.

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

As of November 2024, prices for London Heathrow Airport to San Francisco flights are approximately 31% 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 return 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

£257

Fastest flight time

11h 00m

Direct flights

Every day

Airports in San Francisco

1 airport
The best one-way flight to San Francisco from London Heathrow Airport in the past 72 hours is £257. The best return flight deal from London Heathrow Airport to San Francisco found on momondo in the last 72 hours is £365.
The fastest flight from London Heathrow Airport to San Francisco takes 11h 00m
Direct flights go from London Heathrow Airport to San Francisco every day.
There is 1 airport near San Francisco: San Francisco (SFO)

  • How far is London Heathrow to San Francisco by plane?

    The straight-line distance from London Heathrow to San Francisco is 5341.3 mi. Typically, this will take 11h 00m by plane in normal conditions.

  • 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 were last updated today.

  • 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?

    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 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 license, 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 Heathrow Airport to San Francisco?

  • What is the most popular airline 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
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom £281Free CancellationRating
8.0
8,756 reviews
Search Delta flights
Air CanadaPriceFrom £327Free CancellationRating
7.0
8,237 reviews
Search Air Canada flights
TAP AIR PORTUGALPriceFrom £364Free CancellationRating
7.1
1,892 reviews
Search TAP AIR PORTUGAL flights
Virgin AtlanticPriceFrom £370Free CancellationRating
7.5
663 reviews
Search Virgin Atlantic flights
Scandinavian AirlinesPriceFrom £372Free CancellationRating
7.3
1,301 reviews
Search Scandinavian Airlines flights
British AirwaysPriceFrom £385Free CancellationRating
6.6
6,837 reviews
Search British Airways flights
KLMPriceFrom £399Free CancellationRating
7.8
1,350 reviews
Search KLM flights
Brussels AirlinesPriceFrom £400Free CancellationRating
7.4
367 reviews
Search Brussels Airlines flights
Austrian AirlinesPriceFrom £400Free CancellationRating
7.6
805 reviews
Search Austrian Airlines flights
American AirlinesPriceFrom £401Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
  • Delta Flights From London Heathrow Airport to San Francisco

    Delta flies from London Heathrow Airport to San Francisco around 7 times per week, with 8,756 momondo users rating the airline 8.0/10. The cheapest Delta deal from London Heathrow Airport to San Francisco in the last 72 hours was £356 (round-trip), much lower than the average airfare cost of £679 for Delta flights on this route.

  • KLM Flights From London Heathrow Airport to San Francisco

    KLM is also a popular choice for this route. KLM flight deals for London Heathrow Airport to San Francisco start from as low as £505 round-trip, depending on your selected dates, with average KLM deals seen on momondo around £720. KLM operates 7 flights to San Francisco from London Heathrow Airport in an average week. Users have rated it 7.8/10 across 1,350 reviews.


Why use momondo?

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

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

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

All flight searches from London to San Francisco on momondo can be filtered to show those which offer flexible booking policies.

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

momondo helps you find the best flight between London and San Francisco 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 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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