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Cheap flights from London to San Francisco from $301

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 to San Francisco departing on 1/24. 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 to San Francisco

Cheap round-trip flights

These are some of the best round-trip flight deals from London 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 to San Francisco.

Cheap last minute flights

Planning a quick getaway from London 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 layovers.

Cheap bus & train deals from London to San Francisco

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

All round-trip flight deals to San Francisco

The cheapest plane tickets to San Francisco found on KAYAK recently.
6:30 pm - 2:40 pmLHR-SFO
28h 10m1 stop
4:40 pm - 6:55 pmSFO-LHR
18h 15m1 stop
$463TAP AIR PORTUGAL
Find Deal
Tue, Jan 14 - Sat, Jan 25
4:40 pm - 2:55 pmLGW-SFO
30h 15m1 stop
4:40 pm - 3:45 pmSFO-LGW
15h 05m1 stop
$464TAP AIR PORTUGAL
Find Deal
Fri, Jan 24 - Mon, Feb 3
6:30 am - 11:50 amLHR-SFO
13h 20m1 stop
4:05 pm - 10:25 amSFO-LHR
10h 20mnonstop
$529Delta
Find Deal
Sun, Jan 26 - Mon, Apr 7
6:30 am - 11:50 amLHR-SFO
13h 20m1 stop
4:40 pm - 10:55 amSFO-LHR
10h 15mnonstop
$531Delta
Find Deal
Sun, Feb 2 - Sun, Feb 9
6:30 am - 12:40 pmLHR-SFO
14h 10m1 stop
12:55 pm - 7:25 amSFO-LHR
10h 30mnonstop
$575Lufthansa
Find Deal
Wed, Apr 16 - Tue, Apr 29
6:30 am - 12:40 pmLHR-SFO
14h 10m1 stop
12:55 pm - 7:25 amSFO-LHR
10h 30mnonstop
$583Lufthansa
Find Deal
Wed, Apr 16 - Mon, Apr 28
11:45 am - 3:00 pmLHR-SFO
11h 15mnonstop
8:50 pm - 3:25 pmSFO-LHR
10h 35mnonstop
$607British Airways
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Fri, Dec 6 - Thu, Jan 16
4:55 pm - 11:59 pmLHR-SFO
15h 04m1 stop
9:40 pm - 3:15 pmSFO-LHR
10h 35mnonstop
$612British Airways
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Wed, Mar 5 - Sun, Mar 9
8:55 am - 4:25 pmLHR-SFO
15h 30m1 stop
12:30 am - 7:30 amSFO-LHR
23h 00m1 stop
$615United Airlines
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Fri, Dec 6 - Wed, Dec 11
1:00 pm - 8:11 pmLHR-SFO
15h 11m1 stop
8:15 am - 10:00 amSFO-LHR
17h 45m1 stop
$619United Airlines
Find Deal
Sat, Mar 1 - Wed, May 7
10:40 pm - 1:05 pmLTN-SFO
46h 25m3 stops
Fri, Jan 24
2:35 pm - 1:05 pmLGW-SFO
54h 30m2 stops
Wed, Jan 15
3:30 pm - 1:05 pmSTN-SFO
53h 35m3 stops
Wed, Jan 15
8:05 pm - 11:50 amLCY-SFO
23h 45m1 stop
$488Virgin Atlantic
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Thu, Dec 5
12:40 pm - 8:45 amLHR-SFO
28h 05m1 stop
$510Virgin Atlantic
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Thu, Nov 28
7:30 pm - 3:40 pmLHR-SFO
28h 10m1 stop
$589Scandinavian Airlines
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Fri, Jan 10
9:30 am - 4:00 pmLHR-SFO
14h 30m1 stop
$597Lufthansa
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Sat, Dec 7
9:30 am - 4:00 pmLHR-SFO
14h 30m1 stop
$598Lufthansa
Find Deal
Sat, Dec 7
8:20 am - 5:24 pmLHR-SFO
17h 04m1 stop
$615British Airways
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Wed, Nov 27
11:15 am - 6:41 pmLHR-SFO
15h 26m1 stop
$616British Airways
Find Deal
Mon, Nov 25
6:30 am - 11:50 amLHR-SFO
13h 20m1 stop
4:40 pm - 10:55 amSFO-LHR
10h 15mnonstop
$528Delta
Find Deal
Mon, Nov 25 - Tue, Dec 10
6:30 am - 11:50 amLHR-SFO
13h 20m1 stop
4:40 pm - 10:55 amSFO-LHR
10h 15mnonstop
$529Delta
Find Deal
Mon, Nov 25 - Tue, Dec 10
1:45 pm - 4:55 pmLHR-SFO
11h 10mnonstop
4:35 pm - 10:10 amSFO-LHR
33h 35m1 stop
$585Lufthansa
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Sun, Nov 24 - Sun, Dec 1
1:45 pm - 4:55 pmLHR-SFO
11h 10mnonstop
12:50 pm - 7:25 amSFO-LHR
10h 35mnonstop
$590Lufthansa
Find Deal
Fri, Nov 22 - Thu, Nov 28
10:05 am - 1:15 pmLHR-SFO
11h 10mnonstop
12:50 pm - 7:25 amSFO-LHR
10h 35mnonstop
$624United Airlines
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Sat, Nov 23 - Sat, Nov 30
10:05 am - 1:15 pmLHR-SFO
11h 10mnonstop
12:50 pm - 7:25 amSFO-LHR
10h 35mnonstop
$625United Airlines
Find Deal
Sat, Nov 23 - Thu, Dec 5
3:20 pm - 6:45 pmLHR-SFO
11h 25mnonstop
8:25 am - 7:20 amSFO-LHR
14h 55m1 stop
$645Iberia
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Fri, Nov 22 - Mon, Nov 25
12:10 pm - 9:11 pmLHR-SFO
17h 01m1 stop
8:40 pm - 3:15 pmSFO-LHR
10h 35mnonstop
$670Iberia
Find Deal
Fri, Nov 22 - Wed, Nov 27
3:20 pm - 6:45 pmLHR-SFO
11h 25mnonstop
8:40 pm - 3:15 pmSFO-LHR
10h 35mnonstop
$671British Airways
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Fri, Nov 22 - Wed, Nov 27
8:40 am - 10:31 pmLCY-SFO
21h 51m2 stops
10:46 pm - 1:45 pmSFO-LCY
30h 59m2 stops
$706British Airways
Find Deal
Sat, Nov 23 - Sat, Nov 30
10:10 am - 1:15 pmLHR-SFO
11h 05mnonstop
7:20 pm - 1:50 pmSFO-LHR
10h 30mnonstop
Sun, Apr 20 - Fri, May 9
11:40 am - 2:45 pmLHR-SFO
11h 05mnonstop
4:40 pm - 10:55 amSFO-LHR
10h 15mnonstop
$554Delta
Find Deal
Mon, Feb 10 - Sun, Feb 23
10:35 am - 1:40 pmLHR-SFO
11h 05mnonstop
3:55 pm - 10:25 amSFO-LHR
10h 30mnonstop
$568Lufthansa
Find Deal
Mon, Apr 28 - Mon, May 12
11:45 am - 3:00 pmLHR-SFO
11h 15mnonstop
5:30 pm - 12:00 pmSFO-LHR
10h 30mnonstop
$592British Airways
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Tue, Feb 11 - Sun, Feb 23
11:45 am - 3:00 pmLHR-SFO
11h 15mnonstop
3:30 pm - 10:00 amSFO-LHR
10h 30mnonstop
$603British Airways
Find Deal
Sun, Jan 19 - Thu, May 15
10:05 am - 1:15 pmLHR-SFO
11h 10mnonstop
5:25 pm - 12:00 pmSFO-LHR
10h 35mnonstop
$606Lufthansa
Find Deal
Fri, Jan 17 - Fri, Jan 31
11:45 am - 3:00 pmLHR-SFO
11h 15mnonstop
5:30 pm - 12:00 pmSFO-LHR
10h 30mnonstop
$611Iberia
Find Deal
Tue, Jan 14 - Tue, Jan 21
11:45 am - 3:00 pmLHR-SFO
11h 15mnonstop
5:30 pm - 12:00 pmSFO-LHR
10h 30mnonstop
$613Iberia
Find Deal
Sat, Jan 18 - Sat, Feb 1
1:45 pm - 4:55 pmLHR-SFO
11h 10mnonstop
5:25 pm - 12:00 pmSFO-LHR
10h 35mnonstop
$632United Airlines
Find Deal
Tue, Dec 24 - Mon, Dec 30
10:05 am - 1:15 pmLHR-SFO
11h 10mnonstop
5:25 pm - 12:00 pmSFO-LHR
10h 35mnonstop
$645United Airlines
Find Deal
Sat, Jan 11 - Wed, Jan 22

SWISS flights from London to San Francisco

Our best SWISS deals on London to San Francisco flight tickets
SWISS
Dec 4
LGW6:45 pmLondon Gatwick
29h 40m
1 stop
SFO4:25 pmSan Francisco
Dec 8
SFO7:25 pmSan Francisco
14h 25m
1 stop
LGW5:50 pmLondon Gatwick
SWISS
Dec 6
LGW6:45 pmLondon Gatwick
29h 40m
1 stop
SFO4:25 pmSan Francisco
Jan 16
SFO7:25 pmSan Francisco
14h 25m
1 stop
LGW5:50 pmLondon Gatwick
SWISS
Dec 4
LGW6:45 pmLondon Gatwick
29h 40m
1 stop
SFO4:25 pmSan Francisco
Dec 10
SFO7:25 pmSan Francisco
14h 25m
1 stop
LGW5:50 pmLondon Gatwick

TAP AIR PORTUGAL flights from London to San Francisco

Our best TAP AIR PORTUGAL deals on London to San Francisco flight tickets
TAP AIR PORTUGAL
Jan 14
LHR6:30 pmLondon Heathrow
28h 10m
1 stop
SFO2:40 pmSan Francisco
Jan 25
SFO4:40 pmSan Francisco
18h 15m
1 stop
LHR6:55 pmLondon Heathrow
TAP AIR PORTUGAL
Jan 24
LGW4:40 pmLondon Gatwick
30h 15m
1 stop
SFO2:55 pmSan Francisco
Feb 3
SFO4:40 pmSan Francisco
15h 05m
1 stop
LGW3:45 pmLondon Gatwick
TAP AIR PORTUGAL
Jan 14
LHR6:30 pmLondon Heathrow
28h 10m
1 stop
SFO2:40 pmSan Francisco
Jan 24
SFO7:15 pmSan Francisco
19h 25m
1 stop
LHR10:40 pmLondon Heathrow

See travel insights to San Francisco from

How to get the cheapest flight ticket from London 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 to San Francisco?

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

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

Thursday. The cheapest day of the week is typically Thursday. The most expensive is typically Sunday

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

In the evening. London to San Francisco flights are approximately 6% more expensive in the afternoon than in the evening

What is the cheapest London to San Francisco flight route?

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

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

24 days before. The cheapest time to buy a flight from London to San Francisco is approximately 24 days to departure

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

There are 3 cabin classes available to choose from on London 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 to San Francisco flights?

You could potentially save up to 47% on your flight if you consider stops on a London to San Francisco flight.

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

As of November 2024, prices for London to San Francisco flights are approximately 25% more expensive when compared to flights at the same time last year.

What is the typical price of a round-trip flight between London and San Francisco?


When to book flights from London to San Francisco

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

Cheap London to San Francisco (LON to SFO) flight deals and tips

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

Best Price Found

$301

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 in the past 72 hours is $301. The best round-trip flight deal from London to San Francisco found on momondo in the last 72 hours is $463.
The fastest flight from London to San Francisco takes 11h 00m
Direct flights go from London to San Francisco every day.
There is 1 airport near San Francisco: San Francisco (SFO)

  • How far is London to San Francisco by plane?

    A flight from London to San Francisco will travel around 5349.7 mi. In terms of flight time, this usually takes a little over 11h 00m.

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

    Prices for flights from London to San Francisco Airport are refreshed on a daily basis.

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

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

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

    The required travel and health documents for your San Francisco Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Francisco Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from London to San Francisco?

  • What is the most popular airline from London to San Francisco?


Best airlines flying from London to San Francisco

Compare and see reviews for airlines that fly from London to San Francisco with momondo
Airline
Rating
Free Cancellation
Price
Scandinavian AirlinesPriceFrom $415Free CancellationRating
7.3
1,301 reviews
Search Scandinavian Airlines flights
Austrian AirlinesPriceFrom $476Free CancellationRating
7.6
805 reviews
Search Austrian Airlines flights
LufthansaPriceFrom $507Free CancellationRating
6.8
7,150 reviews
Search Lufthansa flights
British AirwaysPriceFrom $514Free CancellationRating
6.6
6,837 reviews
Search British Airways flights
DeltaPriceFrom $519Free CancellationRating
8.0
8,759 reviews
Search Delta flights
FinnairPriceFrom $525Free CancellationRating
7.7
1,300 reviews
Search Finnair flights
Virgin AtlanticPriceFrom $527Free CancellationRating
7.5
663 reviews
Search Virgin Atlantic flights
American AirlinesPriceFrom $544Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $549Free CancellationRating
7.4
9,173 reviews
Search United Airlines flights
Brussels AirlinesPriceFrom $562Free CancellationRating
7.4
367 reviews
Search Brussels Airlines flights
  • Delta Flights From London to San Francisco

    Delta flies from London to San Francisco around 7 times per week, with 8,758 momondo users rating the airline 8.0/10. The cheapest Delta deal from London to San Francisco in the last 72 hours was $519 (round-trip), much lower than the average airfare cost of $739 for Delta flights on this route.

  • Finnair Flights From London to San Francisco

    $525 is the best Finnair flight deal from London to San Francisco found on momondo over the last 72 hours. The average Finnair ticket price found was closer to $571, however, with flight time and availability significantly affecting the price. Finnair (7.7/10 from 1,300 user reviews) flies into San Francisco from London 14 times in an average week so prices can vary.


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?

Yes. momondo enables you to select and highlight flights to San Francisco from London with this policy.

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?

If you are not ready to book a flight from London to San Francisco now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to San Francisco and let you know when they change.


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