Which layover airport has the shortest connection time from London to San Francisco?

Copenhagen (CPH) has the shortest average layover time for this route: 4h 01m.

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 in the evening have, in the past, seen delays more frequently in comparison.

Which layover airport has the shortest travel time from London to San Francisco?

Flights connecting via Copenhagen (CPH) have the shortest average one-way travel time: 15h 20m.

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

SWISS, British Airways, and United Airlines are the most popular carriers operating from London 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 141 minutes.

How many flights depart from London to San Francisco on average per day?

The number of flights available between London and San Francisco is 31 per day as of December 2025. The most frequent departure time is 11:00AM, with 72% of daily flights leaving at noon.

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

As of December 2025, 217 flights take off from London and land in San Francisco each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.

Which layover airport offers the lowest fares from London to San Francisco?

Flights via Copenhagen (CPH) offer the lowest average round-trip price of $693.

What airlines fly to San Francisco?

British Airways, United Airlines and Lufthansa are the top three most popular airlines that fly to San Francisco from London according to our data. British Airways is the first choice among our users, with 41% of people opting to fly with this airline when traveling to San Francisco. Keep in mind that there are 12 different airlines that fly to San Francisco on a routine basis, so you have a few additional options to choose from.

Which airport is the most popular layover for flights between London and San Francisco?

Copenhagen (CPH) was the most common stop: 71% of momondo users choosing 1-stop flights on this route connected there.

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week which experiences the fewest number of 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 have had the least number of delays on this route over the last 12 months; with about 11% of their flights experiencing any sort of delay.

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?

There are 12 operators available for flights from London to San Francisco Airport as of December 2025.

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.

$403 Cheap Flights from London to San Francisco in 2025/26

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1:00 pm - 9:39 pm

LHR

SFO

16h 39m1 stop

8:30 am - 6:30 am

SFO

LHR

14h 00m1 stop

$616Air Canada

Mon, Feb 2 - Fri, Feb 13

7:15 pm - 9:37 pm

LCY

SFO

34h 22m2 stops

5:20 pm - 6:35 pm

SFO

LCY

17h 15m1 stop

$616British Airways

Mon, Feb 2 - Mon, Feb 9

8:55 pm - 11:45 am

LHR

SFO

22h 50m1 stop

11:15 pm - 5:30 pm

SFO

LHR

10h 15mnonstop

$617Virgin Atlantic

Fri, Jun 12 - Tue, Jun 23

9:35 am - 5:05 pm

LGW

SFO

62h 30m2 stops

4:35 pm - 9:45 am

SFO

LGW

33h 10m1 stop

$617TAP AIR PORTUGAL

Wed, Mar 25 - Tue, Apr 21

8:40 pm - 8:52 pm

LGW

SFO

32h 12m2 stops

3:08 pm - 8:00 pm

SFO

LGW

20h 52m2 stops

$618Iberia

Tue, Apr 7 - Mon, Apr 20

7:50 pm - 2:35 pm

LHR

SFO

50h 45m2 stops

4:40 pm - 4:00 pm

SFO

LHR

15h 20m1 stop

$618Scandinavian Airlines

Tue, Feb 24 - Thu, Mar 5

11:30 am - 11:19 pm

LGW

SFO

19h 49m2 stops

5:45 pm - 8:00 pm

SFO

LGW

18h 15m1 stop

$621Iberia

Tue, May 19 - Thu, Jun 4

10:35 am - 2:35 pm

LHR

SFO

36h 00m2 stops

4:40 pm - 9:35 pm

SFO

LHR

20h 55m2 stops

$622Scandinavian Airlines

Thu, Jan 15 - Mon, Jan 19

9:15 am - 8:50 pm

LCY

SFO

19h 35m2 stops

2:40 pm - 5:55 pm

SFO

LCY

19h 15m1 stop

$624Lufthansa

Mon, Apr 20 - Thu, Apr 23

6:30 am - 11:45 am

LHR

SFO

13h 15m1 stop

1:25 pm - 9:50 am

SFO

LHR

12h 25m1 stop

$625Virgin Atlantic

Mon, Mar 30 - Wed, Apr 8

Air Canada flights from London to San Francisco

Our best Air Canada deals on London to San Francisco flight tickets

Air Canada

Feb 2

LHR1:00 pmLondon Heathrow

16h 39m

1 stop

SFO9:39 pmSan Francisco

Feb 13

SFO8:30 amSan Francisco

14h 00m

1 stop

LHR6:30 amLondon Heathrow

$616

Find similar

Air Canada

Apr 16

LHR2:10 pmLondon Heathrow

15h 20m

1 stop

SFO9:30 pmSan Francisco

Apr 28

SFO2:30 pmSan Francisco

13h 20m

1 stop

LHR11:50 amLondon Heathrow

$632

Find similar

Air Canada

Apr 11

LHR3:05 pmLondon Heathrow

27h 35m

1 stop

SFO10:40 amSan Francisco

May 1

SFO7:30 pmSan Francisco

33h 50m

1 stop

LHR1:20 pmLondon Heathrow

$660

Find similar

Delta flights from London to San Francisco

Our best Delta deals on London to San Francisco flight tickets

Delta

Jan 31

LCY8:40 amLondon City

35h 10m

1 stop

SFO11:50 amSan Francisco

Feb 15

SFO1:55 pmSan Francisco

18h 40m

1 stop

LCY4:35 pmLondon City

$698

Find similar

Delta

Jan 10

LHR10:45 amLondon Heathrow

19h 30m

1 stop

SFO10:15 pmSan Francisco

Jul 4

SFO12:00 pmSan Francisco

17h 05m

1 stop

LHR1:05 pmLondon Heathrow

$752

Find similar

Delta

Jan 10

LHR4:10 pmLondon Heathrow

16h 59m

1 stop

SFO1:09 amSan Francisco

Jul 4

SFO3:00 pmSan Francisco

14h 10m

1 stop

LHR1:10 pmLondon Heathrow

$766

Find similar

Fly from

Fly to

Route

Depart

Return

Price

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Mon 2/2

1:00 pm-9:39 pm

1 stop16h 39m

San Francisco

Fri 2/13

8:30 am-6:30 am

1 stop14h 00m

$616

LondonSan Francisco

LCY - SFO

LCYSFO

London City

Mon 2/2

7:15 pm-9:37 pm

2 stops34h 22m

San Francisco

Mon 2/9

5:20 pm-6:35 pm

1 stop17h 15m

$616

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Fri 6/12

8:55 pm-11:45 am

1 stop22h 50m

San Francisco

Tue 6/23

11:15 pm-5:30 pm

Nonstop10h 15m

$617

LondonSan Francisco

LGW - SFO

LGWSFO

London Gatwick

Wed 3/25

9:35 am-5:05 pm

2 stops62h 30m

San Francisco

Tue 4/21

4:35 pm-9:45 am

1 stop33h 10m

$617

LondonSan Francisco

LGW - SFO

LGWSFO

London Gatwick

Tue 4/7

8:40 pm-8:52 pm

2 stops32h 12m

San Francisco

Mon 4/20

3:08 pm-8:00 pm

2 stops20h 52m

$618

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Tue 2/24

7:50 pm-2:35 pm

2 stops50h 45m

San Francisco

Thu 3/5

4:40 pm-4:00 pm

1 stop15h 20m

$618

LondonSan Francisco

LGW - SFO

LGWSFO

London Gatwick

Tue 5/19

11:30 am-11:19 pm

2 stops19h 49m

San Francisco

Thu 6/4

5:45 pm-8:00 pm

1 stop18h 15m

$621

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Thu 1/15

10:35 am-2:35 pm

2 stops36h 00m

San Francisco

Mon 1/19

4:40 pm-9:35 pm

2 stops20h 55m

$622

LondonSan Francisco

LCY - SFO

LCYSFO

London City

Mon 4/20

9:15 am-8:50 pm

2 stops19h 35m

San Francisco

Thu 4/23

2:40 pm-5:55 pm

1 stop19h 15m

$624

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Mon 3/30

6:30 am-11:45 am

1 stop13h 15m

San Francisco

Wed 4/8

1:25 pm-9:50 am

1 stop12h 25m

$625

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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

Prices

Airlines

Delays

Layovers

Other information

What is the cheapest month to fly to San Francisco?

If you aren’t able to travel to San Francisco during the month of September, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $576.

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

The cheapest day to depart from London to San Francisco is on a Thursday when prices can be found for as low as $681. The most expensive day to fly to San Francisco is Friday, with ticket prices averaging around $746.

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

Our data shows that the cheapest London to San Francisco flights are usually those with departure times in the evening. Our users have found flights to San Francisco in the evening for as low as $682. Flights in the afternoon are often more expensive with an average ticket price of $737.

What is the cheapest London to San Francisco flight route?

Fly from London Heathrow to San Francisco for the best London - 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 when booking weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around $682 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 for as low as $642 on momondo.

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

There are 4 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.

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

As of December 2025, prices for London to San Francisco flights are approximately 3% more expensive when compared to flights at the same time last year.

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	$520
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 $520. The best round-trip flight deal from London to San Francisco found on momondo in the last 72 hours is $729.

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 in San Francisco. From London there are direct flights to San Francisco (SFO).

Search flight deals

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?
There are 12 operators available for flights from London to San Francisco Airport as of December 2025.
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?
Based on momondo bookings for flights between London and San Francisco, the leading plane model is Boeing 777, making up 35.66% of the total bookings. Other popular models include Boeing 787-9 Dreamliner with 22.57%, Airbus A380-800 with 18.44%, and Boeing 777-300ER with 13.11%.
What is the most popular airline from London to San Francisco?
momondo data reveals that the most frequently booked airline on the route from London to San Francisco is British Airways, representing 23% of all bookings. The subsequent popular airlines are United Airlines at 22%, Lufthansa at 10%, and American Airlines at 9%.

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
TAP AIR PORTUGAL	PriceFrom $449	Free Cancellation	Rating 7.2 2,098 reviews	Search TAP AIR PORTUGAL flights
Aer Lingus	PriceFrom $492	Free Cancellation	Rating 7.2 1,413 reviews	Search Aer Lingus flights
British Airways	PriceFrom $516	Free Cancellation	Rating 6.7 7,617 reviews	Search British Airways flights
Scandinavian Airlines	PriceFrom $520	Free Cancellation	Rating 7.4 1,630 reviews	Search Scandinavian Airlines flights
Brussels Airlines	PriceFrom $530	Free Cancellation	Rating 7.2 377 reviews	Search Brussels Airlines flights
United Airlines	PriceFrom $534	Free Cancellation	Rating 7.4 9,114 reviews	Search United Airlines flights
Lufthansa	PriceFrom $542	Free Cancellation	Rating 6.8 7,659 reviews	Search Lufthansa flights
Virgin Atlantic	PriceFrom $550	Free Cancellation	Rating 7.5 677 reviews	Search Virgin Atlantic flights
Delta	PriceFrom $555	Free Cancellation	Rating 7.9 8,016 reviews	Search Delta flights
Austrian Airlines	PriceFrom $567	Free Cancellation	Rating 7.6 884 reviews	Search Austrian Airlines flights

Delta Flights From London to San Francisco
Delta flies from London to San Francisco around 7 times per week, with 8,016 momondo users rating the airline 7.9/10. The cheapest Delta deal from London to San Francisco in the last 72 hours was $555 (round-trip), much lower than the average airfare cost of $708 for Delta flights on this route.
Austrian Airlines Flights From London to San Francisco
$567 is the best Austrian Airlines flight deal from London to San Francisco found on momondo over the last 72 hours. The average Austrian Airlines ticket price found was closer to $720, however, with flight time and availability significantly affecting the price. Austrian Airlines (7.6/10 from 884 user reviews) flies into San Francisco from London 14 times in an average week so prices can vary.

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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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Cheap flights from London to San Francisco from $493

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 4/11. 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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How to get the cheapest flight ticket from London to San Francisco

What is the cheapest month to fly to San Francisco?

If you aren’t able to travel to San Francisco during the month of September, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $576.

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

The cheapest day to depart from London to San Francisco is on a Thursday when prices can be found for as low as $681. The most expensive day to fly to San Francisco is Friday, with ticket prices averaging around $746.

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

Our data shows that the cheapest London to San Francisco flights are usually those with departure times in the evening. Our users have found flights to San Francisco in the evening for as low as $682. Flights in the afternoon are often more expensive with an average ticket price of $737.

What is the cheapest London to San Francisco flight route?

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

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

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

There are 4 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.

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

As of December 2025, prices for London to San Francisco flights are approximately 3% more expensive when compared to flights at the same time last year.

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

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

What airlines fly 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 141 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 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 which experiences the fewest number of 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 have had the least number of delays on this route over the last 12 months; with about 11% of their flights experiencing any sort of delay.

Which airport is the most popular layover for flights between London and San Francisco?

Copenhagen (CPH) was the most common stop: 71% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from London to San Francisco?

Flights via Copenhagen (CPH) offer the lowest average round-trip price of $693.

Which layover airport has the shortest travel time from London to San Francisco?

Flights connecting via Copenhagen (CPH) have the shortest average one-way travel time: 15h 20m.

Which layover airport has the shortest connection time from London to San Francisco?

Copenhagen (CPH) has the shortest average layover time for this route: 4h 01m.

How many flights depart from London to San Francisco on average per day?

The number of flights available between London and San Francisco is 31 per day as of December 2025. The most frequent departure time is 11:00AM, with 72% of daily flights leaving at noon.

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

As of December 2025, 217 flights take off from London and land in San Francisco each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.

When to book flights from London to San Francisco

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

Fastest flight time

Direct flights

Airports in San Francisco

How far is London to San Francisco by plane?

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

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?

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

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

Delta Flights From London to San Francisco

Austrian Airlines Flights From London to San Francisco

Traveling to a place near San Francisco?

Why use momondo?

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