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Cheap flights from San Francisco to London Heathrow Airport from £159

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 Heathrow Airport departing on 31/1. 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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Find the cheapest flights from San Francisco to London

Cheap return flights

These are some of the best return flight deals from San Francisco to London 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 San Francisco to London.

Cheap last-minute flights

Planning a quick getaway from San Francisco to London? 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 London, so you can enjoy a seamless trip without stopovers.

Cheap bus & train deals from San Francisco to London

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

All round-trip flight deals to London

The cheapest plane tickets to London found on KAYAK recently.
19:15 - 22:40SFO-LHR
19h 25m1 stop
19:55 - 15:55LHR-SFO
28h 00m1 stop
£385TAP AIR PORTUGAL
Find Deal
Fri, 17 Jan - Thu, 30 Jan
19:15 - 22:40SFO-LHR
19h 25m1 stop
18:30 - 14:55LHR-SFO
28h 25m1 stop
£387TAP AIR PORTUGAL
Find Deal
Fri, 17 Jan - Fri, 24 Jan
16:40 - 21:35SFO-LHR
20h 55m1 stop
13:40 - 14:40LHR-SFO
33h 00m1 stop
£390TAP AIR PORTUGAL
Find Deal
Mon, 20 Jan - Tue, 28 Jan
10:23 - 09:00SFO-LHR
14h 37m1 stop
16:25 - 00:18LHR-SFO
15h 53m1 stop
£456Iberia
Find Deal
Tue, 15 Apr - Tue, 13 May
17:30 - 12:00SFO-LHR
10h 30mdirect
11:45 - 15:00LHR-SFO
11h 15mdirect
£485Iberia
Find Deal
Tue, 31 Dec - Fri, 17 Jan
17:25 - 12:00SFO-LHR
10h 35mdirect
12:05 - 16:25LHR-SFO
36h 20m1 stop
£493United Airlines
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Wed, 15 Jan - Mon, 20 Jan
16:27 - 13:30SFO-LHR
13h 03m1 stop
10:05 - 13:15LHR-SFO
11h 10mdirect
£495United Airlines
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Sun, 8 Dec - Tue, 24 Dec
20:40 - 15:15SFO-LHR
10h 35mdirect
11:45 - 15:00LHR-SFO
11h 15mdirect
£507British Airways
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Tue, 3 Dec - Fri, 13 Dec
20:40 - 15:15SFO-LHR
10h 35mdirect
11:45 - 15:00LHR-SFO
11h 15mdirect
£510British Airways
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Wed, 15 Jan - Sat, 25 Jan
16:40 - 10:55SFO-LHR
10h 15mdirect
06:30 - 11:50LHR-SFO
13h 20m1 stop
£512Virgin Atlantic
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Wed, 4 Dec - Sun, 19 Jan
13:55 - 12:50SFO-LHR
14h 55m1 stop
£159WestJet
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Fri, 31 Jan
13:55 - 12:50SFO-LHR
14h 55m1 stop
£162WestJet
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Fri, 31 Jan
14:10 - 12:50SFO-LHR
14h 40m1 stop
£174WestJet
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Thu, 23 Jan
16:40 - 10:55SFO-LHR
10h 15mdirect
£300Virgin Atlantic
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Wed, 4 Dec
16:40 - 10:55SFO-LHR
10h 15mdirect
£302Virgin Atlantic
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Wed, 4 Dec
17:30 - 12:00SFO-LHR
10h 30mdirect
£310British Airways
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Wed, 8 Jan
16:35 - 10:10SFO-LHR
33h 35m1 stop
£316United Airlines
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Sat, 28 Dec
01:38 - 06:35SFO-LHR
21h 57m1 stop
£318British Airways
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Tue, 11 Mar
00:30 - 07:30SFO-LHR
23h 00m1 stop
£319United Airlines
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Tue, 31 Dec
20:35 - 22:15SFO-LHR
17h 40m2 stops
£358Lufthansa
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Wed, 1 Jan
17:30 - 21:40SFO-LHR
20h 10m1 stop
06:40 - 15:40LHR-SFO
17h 00m1 stop
£462Scandinavian Airlines
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Wed, 27 Nov - Mon, 9 Dec
17:30 - 16:00SFO-LHR
14h 30m1 stop
19:30 - 15:40LHR-SFO
28h 10m1 stop
£477Scandinavian Airlines
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Wed, 27 Nov - Wed, 4 Dec
12:53 - 11:10SFO-LHR
14h 17m1 stop
06:30 - 11:50LHR-SFO
13h 20m1 stop
£491Delta
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Wed, 27 Nov - Fri, 6 Dec
05:40 - 06:50SFO-LHR
17h 10m1 stop
11:40 - 14:45LHR-SFO
11h 05mdirect
£524Virgin Atlantic
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Mon, 25 Nov - Sun, 8 Dec
20:40 - 15:15SFO-LHR
10h 35mdirect
11:45 - 15:00LHR-SFO
11h 15mdirect
£555British Airways
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Wed, 27 Nov - Fri, 6 Dec
22:39 - 10:25SFO-LHR
27h 46m1 stop
11:45 - 15:00LHR-SFO
11h 15mdirect
£564British Airways
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Sat, 23 Nov - Mon, 13 Jan
16:40 - 10:55SFO-LHR
10h 15mdirect
11:40 - 14:45LHR-SFO
11h 05mdirect
£593Virgin Atlantic
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Mon, 25 Nov - Sun, 8 Dec
17:25 - 12:00SFO-LHR
10h 35mdirect
13:45 - 16:55LHR-SFO
11h 10mdirect
£736United Airlines
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Sun, 24 Nov - Tue, 14 Jan
17:25 - 12:00SFO-LHR
10h 35mdirect
10:05 - 13:15LHR-SFO
11h 10mdirect
£782United Airlines
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Tue, 26 Nov - Thu, 26 Dec
12:50 - 07:25SFO-LHR
10h 35mdirect
13:45 - 16:55LHR-SFO
11h 10mdirect
£869Lufthansa
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Sat, 23 Nov - Sun, 12 Jan
17:30 - 12:00SFO-LHR
10h 30mdirect
11:45 - 15:00LHR-SFO
11h 15mdirect
£483Iberia
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Wed, 8 Jan - Wed, 15 Jan
17:30 - 12:00SFO-LHR
10h 30mdirect
11:45 - 15:00LHR-SFO
11h 15mdirect
£485Iberia
Find Deal
Tue, 31 Dec - Fri, 17 Jan
20:40 - 15:15SFO-LHR
10h 35mdirect
15:20 - 18:45LHR-SFO
11h 25mdirect
£487British Airways
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Tue, 14 Jan - Wed, 22 Jan
19:20 - 13:50SFO-LHR
10h 30mdirect
14:20 - 17:25LHR-SFO
11h 05mdirect
£489British Airways
Find Deal
Wed, 2 Apr - Tue, 29 Apr
17:25 - 12:00SFO-LHR
10h 35mdirect
13:45 - 16:55LHR-SFO
11h 10mdirect
£490Lufthansa
Find Deal
Sun, 8 Dec - Tue, 24 Dec
16:40 - 10:55SFO-LHR
10h 15mdirect
11:40 - 14:45LHR-SFO
11h 05mdirect
£493Virgin Atlantic
Find Deal
Tue, 14 Jan - Tue, 21 Jan
16:40 - 10:55SFO-LHR
10h 15mdirect
11:40 - 14:45LHR-SFO
11h 05mdirect
£494Virgin Atlantic
Find Deal
Tue, 14 Jan - Tue, 21 Jan
17:25 - 12:00SFO-LHR
10h 35mdirect
10:05 - 13:15LHR-SFO
11h 10mdirect
£496United Airlines
Find Deal
Sun, 8 Dec - Tue, 24 Dec
12:50 - 07:25SFO-LHR
10h 35mdirect
13:45 - 16:55LHR-SFO
11h 10mdirect
£524United Airlines
Find Deal
Sun, 8 Dec - Thu, 26 Dec
17:25 - 12:00SFO-LHR
10h 35mdirect
10:05 - 13:15LHR-SFO
11h 10mdirect
£540Lufthansa
Find Deal
Mon, 6 Jan - Mon, 13 Jan

Delta flights from San Francisco to London Heathrow Airport

Our best Delta deals on San Francisco to London Heathrow Airport flight tickets
Delta
30 Dec
SFO00:10San Francisco
22h 55m
1 stop
LHR07:05London Heathrow
16 Jan
LHR06:30London Heathrow
13h 20m
1 stop
SFO11:50San Francisco
Delta
27 Nov
SFO12:53San Francisco
14h 17m
1 stop
LHR11:10London Heathrow
6 Dec
LHR11:40London Heathrow
11h 05m
SFO14:45San Francisco
Delta
30 Dec
SFO00:10San Francisco
22h 55m
1 stop
LHR07:05London Heathrow
16 Jan
LHR11:40London Heathrow
11h 05m
SFO14:45San Francisco

SWISS flights from San Francisco to London Heathrow Airport

Our best SWISS deals on San Francisco to London Heathrow Airport flight tickets
SWISS
9 Dec
SFO19:25San Francisco
28h 40m
1 stop
LHR08:05London Heathrow
16 Dec
LHR18:40London Heathrow
29h 45m
1 stop
SFO16:25San Francisco
SWISS
4 Dec
SFO19:25San Francisco
18h 00m
2 stops
LHR21:25London Heathrow
12 Dec
LHR07:00London Heathrow
17h 25m
2 stops
SFO16:25San Francisco
SWISS
6 Dec
SFO19:25San Francisco
18h 00m
2 stops
LHR21:25London Heathrow
12 Dec
LHR07:00London Heathrow
17h 25m
2 stops
SFO16:25San Francisco

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?

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 £509. The month of September is another great option to travel to London Heathrow Airport, with average flight prices from San Francisco averaging around £536.

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 Monday. momondo users have found tickets for Monday departures for as low as £597. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Saturday is £720.

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 afternoon. momondo users have found flights departing from San Francisco to London Heathrow Airport in the afternoon for as low as £600. 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 in the morning when prices are £746 on average. Flights to London Heathrow Airport from San Francisco in the morning 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?

Most flyers found that booking tickets 29 days in advance of their planned departure date is the best time to get cheap flights to London Heathrow Airport. During this timeframe, flight prices are around £640. However, in the past 72 hours, people saw flights from San Francisco for as low as £458.

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 45% 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 2024, prices for San Francisco to London Heathrow Airport flights are approximately 21% 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

£159

Fastest flight time

10h 15m

Direct flights

Every day
The best one-way flight to London Heathrow Airport from San Francisco in the past 72 hours is £159. The best return flight deal from San Francisco to London Heathrow Airport found on momondo in the last 72 hours is £385.
The fastest flight from San Francisco to London Heathrow Airport takes 10h 15m
Direct flights go from San Francisco to London Heathrow Airport every day.

  • 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 15m 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?

  • 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?

  • 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
Airline
Rating
Free Cancellation
Price
TAP AIR PORTUGALPriceFrom £432Free CancellationRating
7.1
1,893 reviews
Search TAP AIR PORTUGAL flights
Virgin AtlanticPriceFrom £448Free CancellationRating
7.5
662 reviews
Search Virgin Atlantic flights
IberiaPriceFrom £454Free CancellationRating
7.0
2,665 reviews
Search Iberia flights
British AirwaysPriceFrom £458Free CancellationRating
6.6
6,831 reviews
Search British Airways flights
KLMPriceFrom £470Free CancellationRating
7.8
1,346 reviews
Search KLM flights
United AirlinesPriceFrom £483Free CancellationRating
7.4
9,171 reviews
Search United Airlines flights
LufthansaPriceFrom £488Free CancellationRating
6.8
7,146 reviews
Search Lufthansa flights
DeltaPriceFrom £543Free CancellationRating
8.0
8,747 reviews
Search Delta flights
  • Delta Flights From San Francisco to London Heathrow Airport

    The lowest priced Delta flight from San Francisco to London Heathrow Airport from the last 72 hours was £686. Generally, Delta has 7 flights on this route every week with an average price of £931. Delta is rated 8.0/10 by our users.

  • KLM Flights From San Francisco to London Heathrow Airport

    Across 1,346 KLM reviews on momondo, the average score is 7.8/10. KLM flies from San Francisco to London Heathrow Airport about 7 times each week, with ticket deals ranging from £594 to £831. Price data is based on momondo searches in the last 72 hours.


Why use momondo?

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.


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