Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from London Heathrow Airport to San Francisco from £266

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 10/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Deals available from 900+ travel sites.

'This year, momondo is the #1 place for airfares on the internet.'
Voted winner of Europe's Best Travel App 2023
Save money when you book flights with momondo
Big names, great deals
Big names, great deals
Search 100s of travel sites to compare prices.
Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customise your results.
Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.
Price Alerts
Price Alerts
Not ready to book? to track prices.

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.
19:55 - 14:15LHR-SFO
26h 20m1 stop
16:35 - 22:40SFO-LHR
22h 05m1 stop
£372TAP AIR PORTUGAL
Find Deal
jeu., 16 janv. - mer., 29 janv.
16:30 - 14:15LHR-SFO
29h 45m1 stop
16:35 - 18:55SFO-LHR
18h 20m1 stop
£377TAP AIR PORTUGAL
Find Deal
jeu., 16 janv. - mer., 29 janv.
13:45 - 16:55LHR-SFO
11h 10mdirect
17:25 - 12:00SFO-LHR
10h 35mdirect
£398Lufthansa
Find Deal
jeu., 6 févr. - jeu., 20 févr.
10:05 - 13:15LHR-SFO
11h 10mdirect
17:25 - 12:00SFO-LHR
10h 35mdirect
£399Lufthansa
Find Deal
ven., 17 janv. - ven., 24 janv.
15:45 - 11:50LHR-SFO
28h 05m1 stop
16:40 - 10:55SFO-LHR
10h 15mdirect
£425Virgin Atlantic
Find Deal
jeu., 16 janv. - mer., 29 janv.
06:30 - 11:50LHR-SFO
13h 20m1 stop
16:40 - 10:55SFO-LHR
10h 15mdirect
£426Virgin Atlantic
Find Deal
jeu., 16 janv. - mer., 29 janv.
08:55 - 16:25LHR-SFO
15h 30m1 stop
08:25 - 06:40SFO-LHR
14h 15m1 stop
£442United Airlines
Find Deal
jeu., 16 janv. - mer., 29 janv.
10:00 - 21:40LHR-SFO
19h 40m2 stops
19:05 - 09:40SFO-LHR
30h 35m1 stop
£443United Airlines
Find Deal
mer., 15 janv. - dim., 19 janv.
11:45 - 15:00LHR-SFO
11h 15mdirect
18:30 - 12:00SFO-LHR
10h 30mdirect
£446British Airways
Find Deal
lun., 24 févr. - mar., 18 mars
11:45 - 15:00LHR-SFO
11h 15mdirect
10:20 - 07:20SFO-LHR
14h 00m1 stop
£450British Airways
Find Deal
ven., 28 févr. - jeu., 20 mars
14:50 - 13:06LHR-SFO
30h 16m1 stop
£266WestJet
Find Deal
lun., 10 févr.
15:15 - 20:10LHR-SFO
36h 55m1 stop
sam., 1 févr.
15:15 - 18:25LHR-SFO
59h 10m3 stops
jeu., 23 janv.
17:50 - 11:50LHR-SFO
26h 00m1 stop
£387Virgin Atlantic
Find Deal
ven., 7 févr.
16:35 - 10:52LHR-SFO
26h 17m1 stop
£447Virgin Atlantic
Find Deal
mar., 24 déc.
11:45 - 15:00LHR-SFO
11h 15mdirect
£462British Airways
Find Deal
ven., 17 janv.
11:45 - 15:00LHR-SFO
11h 15mdirect
£472Finnair
Find Deal
mer., 5 févr.
08:30 - 16:00LHR-SFO
15h 30m1 stop
£476Lufthansa
Find Deal
lun., 20 janv.
20:15 - 14:50LHR-SFO
26h 35m1 stop
£483Lufthansa
Find Deal
lun., 13 janv.
19:00 - 12:20LHR-SFO
25h 20m1 stop
£485British Airways
Find Deal
lun., 30 déc.
10:45 - 22:48LHR-SFO
20h 03m1 stop
12:05 - 11:40SFO-LHR
15h 35m1 stop
£514Virgin Atlantic
Find Deal
mar., 24 déc. - mar., 14 janv.
13:45 - 16:55LHR-SFO
11h 10mdirect
12:50 - 07:25SFO-LHR
10h 35mdirect
£534United Airlines
Find Deal
mar., 24 déc. - mar., 14 janv.
13:45 - 16:55LHR-SFO
11h 10mdirect
00:30 - 07:30SFO-LHR
23h 00m1 stop
£538Lufthansa
Find Deal
mar., 24 déc. - mar., 31 déc.
09:05 - 18:45LHR-SFO
41h 40m2 stops
08:25 - 11:15SFO-LHR
18h 50m2 stops
£603Austrian Airlines
Find Deal
lun., 23 déc. - mar., 14 janv.
06:00 - 18:45LHR-SFO
20h 45m2 stops
11:55 - 21:40SFO-LHR
49h 45m2 stops
£613Austrian Airlines
Find Deal
mar., 24 déc. - mar., 14 janv.
10:15 - 19:05LHR-SFO
16h 50m1 stop
11:42 - 12:00SFO-LHR
16h 18m1 stop
£625Finnair
Find Deal
mar., 24 déc. - sam., 28 déc.
11:45 - 15:00LHR-SFO
11h 15mdirect
20:40 - 15:15SFO-LHR
10h 35mdirect
£633British Airways
Find Deal
mar., 24 déc. - mer., 1 janv.
11:45 - 15:00LHR-SFO
11h 15mdirect
20:40 - 15:15SFO-LHR
10h 35mdirect
£663Finnair
Find Deal
mar., 24 déc. - sam., 28 déc.
08:30 - 12:35LHR-SFO
36h 05m1 stop
13:50 - 07:25SFO-LHR
10h 35mdirect
£667Lufthansa
Find Deal
lun., 23 déc. - mer., 29 oct.
15:20 - 18:45LHR-SFO
11h 25mdirect
17:30 - 12:00SFO-LHR
10h 30mdirect
£869British Airways
Find Deal
dim., 22 déc. - mer., 8 janv.
11:40 - 14:45LHR-SFO
11h 05mdirect
16:40 - 10:55SFO-LHR
10h 15mdirect
£429Virgin Atlantic
Find Deal
mer., 15 janv. - mer., 22 janv.
11:40 - 14:45LHR-SFO
11h 05mdirect
16:40 - 10:55SFO-LHR
10h 15mdirect
£430KLM
Find Deal
ven., 17 janv. - lun., 27 janv.
15:20 - 18:45LHR-SFO
11h 25mdirect
20:40 - 15:15SFO-LHR
10h 35mdirect
£435British Airways
Find Deal
jeu., 6 févr. - sam., 22 févr.
15:20 - 18:45LHR-SFO
11h 25mdirect
18:30 - 12:00SFO-LHR
10h 30mdirect
£446British Airways
Find Deal
lun., 24 févr. - jeu., 20 mars
10:05 - 13:15LHR-SFO
11h 10mdirect
17:25 - 12:00SFO-LHR
10h 35mdirect
£457Lufthansa
Find Deal
lun., 27 janv. - mar., 11 févr.
13:45 - 16:55LHR-SFO
11h 10mdirect
17:25 - 12:00SFO-LHR
10h 35mdirect
£473Lufthansa
Find Deal
lun., 13 janv. - lun., 27 janv.
10:05 - 13:15LHR-SFO
11h 10mdirect
12:50 - 07:25SFO-LHR
10h 35mdirect
£493Austrian Airlines
Find Deal
sam., 18 janv. - sam., 25 janv.
10:05 - 13:15LHR-SFO
11h 10mdirect
12:50 - 07:25SFO-LHR
10h 35mdirect
£499Austrian Airlines
Find Deal
lun., 13 janv. - lun., 20 janv.
10:05 - 13:15LHR-SFO
11h 10mdirect
19:40 - 14:10SFO-LHR
10h 30mdirect
£513United Airlines
Find Deal
lun., 13 janv. - mer., 30 avr.
13:45 - 16:55LHR-SFO
11h 10mdirect
19:45 - 14:10SFO-LHR
10h 25mdirect
£515United Airlines
Find Deal
lun., 13 janv. - jeu., 1 mai

Air France flights from London Heathrow Airport to San Francisco

Our best Air France deals on London Heathrow Airport to San Francisco flight tickets
Air France
15 Jan
LHR11:40London Heathrow
11h 05m
SFO14:45San Francisco
2 May
SFO16:05San Francisco
10h 20m
LHR10:25London Heathrow
Air France
25 Dec
LHR11:40London Heathrow
11h 05m
SFO14:45San Francisco
31 Dec
SFO16:40San Francisco
10h 15m
LHR10:55London Heathrow
Air France
25 Dec
LHR11:40London Heathrow
11h 05m
SFO14:45San Francisco
31 Dec
SFO16:40San Francisco
10h 15m
LHR10:55London Heathrow

TAP AIR PORTUGAL flights from London Heathrow Airport to San Francisco

Our best TAP AIR PORTUGAL deals on London Heathrow Airport to San Francisco flight tickets
TAP AIR PORTUGAL
16 Jan
LHR19:55London Heathrow
26h 20m
1 stop
SFO14:15San Francisco
29 Jan
SFO16:35San Francisco
22h 05m
1 stop
LHR22:40London Heathrow
TAP AIR PORTUGAL
16 Jan
LHR16:30London Heathrow
29h 45m
1 stop
SFO14:15San Francisco
29 Jan
SFO16:35San Francisco
18h 20m
1 stop
LHR18:55London Heathrow
TAP AIR PORTUGAL
31 Jan
LHR19:55London Heathrow
27h 00m
1 stop
SFO14:55San Francisco
28 Feb
SFO19:15San Francisco
19h 25m
1 stop
LHR22:40London 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 to San Francisco?

The month of February is, on average, the cheapest month to fly to San Francisco from London Heathrow Airport, with most prices found around £429. If you are unable to visit San Francisco during the month of February, then departing from London Heathrow Airport during the month November is also very affordable. Most momondo users find prices during this month for around £461.

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

The cheapest day to depart on your flight to San Francisco is on a Tuesday when prices can be found for as low as £510. This is often the case because there is less demand to fly during this day of the week. Flights from London Heathrow Airport to San Francisco on a Sunday will generally be more expensive and average around £559. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

Our most recent data shows that the best time of day to fly to San Francisco is at midday. Flights from London Heathrow Airport to San Francisco during this time can be as low as £500. Try not to purchase tickets in the afternoon because they tend to be around £542. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest London Heathrow to San Francisco flight route?

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

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

In general, most travellers find the cheapest time to book a flight to San Francisco is about 22 days prior to their departure date, when tickets on average are £531. Keep in mind that you might also find cheap flights to San Francisco outside of this time window. In fact, momondo users recently found flights from London Heathrow Airport to San Francisco for £375.

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

There are 4 cabin classes available to choose from on London Heathrow 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 38% 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 December 2024, prices for London Heathrow Airport to San Francisco flights are approximately 28% 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

£266

Fastest flight time

11h 05m

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 £266. The best return flight deal from London Heathrow Airport to San Francisco found on momondo in the last 72 hours is £372.
The fastest flight from London Heathrow Airport to San Francisco takes 11h 05m
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 05m 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 £305Free CancellationRating
8.0
8,604 reviews
Search Delta flights
Air CanadaPriceFrom £317Free CancellationRating
7.0
8,391 reviews
Search Air Canada flights
TAP AIR PORTUGALPriceFrom £366Free CancellationRating
7.1
1,878 reviews
Search TAP AIR PORTUGAL flights
Scandinavian AirlinesPriceFrom £374Free CancellationRating
7.3
1,308 reviews
Search Scandinavian Airlines flights
Virgin AtlanticPriceFrom £379Free CancellationRating
7.5
668 reviews
Search Virgin Atlantic flights
British AirwaysPriceFrom £385Free CancellationRating
6.6
6,817 reviews
Search British Airways flights
Brussels AirlinesPriceFrom £400Free CancellationRating
7.4
353 reviews
Search Brussels Airlines flights
Austrian AirlinesPriceFrom £400Free CancellationRating
7.5
788 reviews
Search Austrian Airlines flights
American AirlinesPriceFrom £401Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
KLMPriceFrom £402Free CancellationRating
7.8
1,349 reviews
Search KLM 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 8,604 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 £387 (round-trip), much lower than the average airfare cost of £652 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 £509 round-trip, depending on your selected dates, with average KLM deals seen on momondo around £718. KLM operates 7 flights to San Francisco from London Heathrow Airport in an average week. Users have rated it 7.8/10 across 1,349 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.


An easier way to manage your San Francisco trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
From?
To?
mar. 24/12
mar. 31/12
Email me momondo's favourite deals

Find better results for your trip to the United States