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Cheap flights from San Francisco to London Heathrow Airport from £173

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 26/1. 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.
17:30 - 17:40SFO-LHR
16h 10m1 stop
06:40 - 15:40LHR-SFO
17h 00m1 stop
£399Scandinavian Airlines
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Sat, 22 Feb - Mon, 24 Feb
17:30 - 21:40SFO-LHR
20h 10m1 stop
06:40 - 15:40LHR-SFO
17h 00m1 stop
£409Scandinavian Airlines
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Sun, 26 Jan - Mon, 3 Feb
00:23 - 09:40SFO-LHR
25h 17m1 stop
11:20 - 20:50LHR-SFO
17h 30m1 stop
£505British Airways
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Mon, 20 Jan - Tue, 28 Jan
16:35 - 11:00SFO-LHR
10h 25mdirect
10:45 - 13:50LHR-SFO
11h 05mdirect
£506Iberia
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Tue, 1 Apr - Thu, 10 Apr
16:35 - 11:00SFO-LHR
10h 25mdirect
14:15 - 17:25LHR-SFO
11h 10mdirect
£507Iberia
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Tue, 1 Apr - Tue, 8 Apr
17:25 - 12:00SFO-LHR
10h 35mdirect
08:55 - 16:25LHR-SFO
15h 30m1 stop
£511United Airlines
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Wed, 15 Jan - Tue, 18 Feb
10:50 - 10:10SFO-LHR
15h 20m1 stop
12:05 - 16:25LHR-SFO
36h 20m1 stop
£511United Airlines
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Tue, 21 Jan - Mon, 27 Jan
00:40 - 07:05SFO-LHR
22h 25m1 stop
06:30 - 11:50LHR-SFO
13h 20m1 stop
£517Delta
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Mon, 20 Jan - Tue, 25 Feb
18:30 - 12:00SFO-LHR
10h 30mdirect
15:20 - 19:45LHR-SFO
11h 25mdirect
£527British Airways
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Mon, 10 Mar - Mon, 17 Mar
13:05 - 12:40SFO-LHR
15h 35m1 stop
11:40 - 14:45LHR-SFO
11h 05mdirect
£528Delta
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Wed, 1 Jan - Wed, 5 Feb
22:42 - 12:50SFO-LHR
54h 08m2 stops
Sun, 26 Jan
22:30 - 12:50SFO-LHR
54h 20m2 stops
Sun, 12 Jan
20:35 - 18:35SFO-LHR
14h 00m1 stop
£235Lufthansa
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Sun, 29 Dec
14:40 - 12:45SFO-LHR
14h 05m1 stop
£236Lufthansa
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Tue, 31 Dec
21:20 - 15:40SFO-LHR
10h 20mdirect
£318Virgin Atlantic
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Sun, 4 May
17:30 - 12:00SFO-LHR
10h 30mdirect
£319British Airways
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Wed, 12 Feb
17:30 - 12:00SFO-LHR
10h 30mdirect
£320British Airways
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Tue, 14 Jan
20:15 - 20:35SFO-LHR
16h 20m2 stops
£325United Airlines
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Sat, 28 Dec
11:05 - 08:30SFO-LHR
37h 25m2 stops
£325United Airlines
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Tue, 21 Jan
16:40 - 10:55SFO-LHR
10h 15mdirect
£333Virgin Atlantic
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Thu, 27 Feb
17:25 - 12:00SFO-LHR
10h 35mdirect
12:05 - 16:25LHR-SFO
36h 20m1 stop
£627United Airlines
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Fri, 27 Dec - Tue, 14 Jan
07:00 - 10:10SFO-LHR
19h 10m1 stop
20:05 - 17:25LHR-SFO
28h 20m1 stop
Thu, 26 Dec - Sun, 9 Mar
20:35 - 21:00SFO-LHR
16h 25m1 stop
20:15 - 12:35LHR-SFO
24h 20m2 stops
£681Lufthansa
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Fri, 27 Dec - Tue, 14 Jan
20:40 - 15:15SFO-LHR
10h 35mdirect
11:45 - 15:00LHR-SFO
11h 15mdirect
£711Iberia
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Wed, 25 Dec - Mon, 13 Jan
20:40 - 15:15SFO-LHR
10h 35mdirect
15:35 - 00:22LHR-SFO
16h 47m1 stop
£722Iberia
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Wed, 25 Dec - Thu, 9 Jan
20:40 - 15:15SFO-LHR
10h 35mdirect
10:15 - 22:16LHR-SFO
20h 01m1 stop
£763British Airways
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Tue, 24 Dec - Sat, 11 Jan
20:35 - 19:35SFO-LHR
15h 00m1 stop
08:30 - 20:05LHR-SFO
19h 35m1 stop
£785Lufthansa
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Thu, 26 Dec - Mon, 30 Dec
20:40 - 15:15SFO-LHR
10h 35mdirect
18:00 - 12:33LHR-SFO
26h 33m1 stop
£791British Airways
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Wed, 25 Dec - Wed, 8 Jan
15:25 - 13:45SFO-LHR
14h 20m1 stop
06:30 - 11:50LHR-SFO
13h 20m1 stop
£888Virgin Atlantic
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Thu, 26 Dec - Tue, 31 Dec
16:40 - 10:55SFO-LHR
10h 15mdirect
06:30 - 11:50LHR-SFO
13h 20m1 stop
£898Virgin Atlantic
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Fri, 27 Dec - Tue, 31 Dec
20:40 - 15:15SFO-LHR
10h 35mdirect
15:20 - 18:45LHR-SFO
11h 25mdirect
£495British Airways
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Wed, 8 Jan - Wed, 22 Jan
20:40 - 15:15SFO-LHR
10h 35mdirect
15:20 - 18:45LHR-SFO
11h 25mdirect
£500British Airways
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Mon, 24 Feb - Tue, 4 Mar
19:20 - 13:45SFO-LHR
10h 25mdirect
10:45 - 13:50LHR-SFO
11h 05mdirect
£502British Airways
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Mon, 21 Apr - Wed, 30 Apr
20:40 - 15:15SFO-LHR
10h 35mdirect
11:45 - 15:00LHR-SFO
11h 15mdirect
£504Iberia
Find Deal
Tue, 18 Feb - Wed, 26 Feb
19:20 - 13:45SFO-LHR
10h 25mdirect
10:45 - 13:50LHR-SFO
11h 05mdirect
£506Iberia
Find Deal
Tue, 1 Apr - Thu, 10 Apr
16:40 - 10:55SFO-LHR
10h 15mdirect
11:40 - 14:45LHR-SFO
11h 05mdirect
£511Virgin Atlantic
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Tue, 14 Jan - Tue, 21 Jan
16:40 - 10:55SFO-LHR
10h 15mdirect
11:40 - 14:45LHR-SFO
11h 05mdirect
£515Virgin Atlantic
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Sun, 2 Feb - Wed, 26 Feb
12:50 - 07:25SFO-LHR
10h 35mdirect
16:15 - 19:15LHR-SFO
11h 00mdirect
£527United Airlines
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Sun, 19 Jan - Wed, 7 May
12:50 - 07:25SFO-LHR
10h 35mdirect
10:05 - 13:15LHR-SFO
11h 10mdirect
£565United Airlines
Find Deal
Wed, 8 Jan - Sun, 12 Jan
17:25 - 12:00SFO-LHR
10h 35mdirect
10:05 - 13:15LHR-SFO
11h 10mdirect
£788Lufthansa
Find Deal
Sun, 5 Jan - Mon, 13 Jan

JetBlue flights from San Francisco to London Heathrow Airport

Our best JetBlue deals on San Francisco to London Heathrow Airport flight tickets
JetBlue
5 Feb
SFO08:20San Francisco
13h 35m
1 stop
LHR05:55London Heathrow
28 Feb
LHR12:20London Heathrow
20h 05m
1 stop
SFO00:25San Francisco
JetBlue
18 Feb
SFO06:00San Francisco
15h 55m
1 stop
LHR05:55London Heathrow
26 Feb
LHR08:25London Heathrow
21h 43m
1 stop
SFO22:08San Francisco
JetBlue
31 Mar
SFO22:21San Francisco
14h 24m
1 stop
LHR20:45London Heathrow
8 Apr
LHR07:25London Heathrow
22h 45m
1 stop
SFO22:10San Francisco

Iberia flights from San Francisco to London Heathrow Airport

Our best Iberia deals on San Francisco to London Heathrow Airport flight tickets
Iberia
1 Apr
SFO16:35San Francisco
10h 25m
LHR11:00London Heathrow
10 Apr
LHR10:45London Heathrow
11h 05m
SFO13:50San Francisco
Iberia
1 Apr
SFO16:35San Francisco
10h 25m
LHR11:00London Heathrow
8 Apr
LHR14:15London Heathrow
11h 10m
SFO17:25San Francisco
Iberia
1 Apr
SFO12:56San Francisco
13h 54m
1 stop
LHR10:50London Heathrow
29 Apr
LHR10:45London Heathrow
11h 05m
SFO13:50San 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 typical price of a round-trip flight between San Francisco and London Heathrow Airport?

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 £511. The month of September is another great option to travel to London Heathrow Airport, with average flight prices from San Francisco averaging around £539.

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 £600. 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 £696.

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 £752 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 £645. However, in the past 72 hours, people saw flights from San Francisco for as low as £461.

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 42% 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 December 2024, prices for San Francisco to London Heathrow Airport flights are approximately 3% 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 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

£173

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 £173. The best return flight deal from San Francisco to London Heathrow Airport found on momondo in the last 72 hours is £399.
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 25m 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 £434Free CancellationRating
7.1
1,880 reviews
Search TAP AIR PORTUGAL flights
Virgin AtlanticPriceFrom £450Free CancellationRating
7.5
667 reviews
Search Virgin Atlantic flights
IberiaPriceFrom £457Free CancellationRating
7.0
2,651 reviews
Search Iberia flights
British AirwaysPriceFrom £460Free CancellationRating
6.6
6,810 reviews
Search British Airways flights
KLMPriceFrom £472Free CancellationRating
7.8
1,345 reviews
Search KLM flights
FinnairPriceFrom £474Free CancellationRating
7.7
1,285 reviews
Search Finnair flights
United AirlinesPriceFrom £485Free CancellationRating
7.4
9,022 reviews
Search United Airlines flights
LufthansaPriceFrom £491Free CancellationRating
6.8
7,083 reviews
Search Lufthansa flights
DeltaPriceFrom £546Free CancellationRating
8.0
8,594 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 1,345 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 £732. 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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