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Cheap flights from San Francisco to London from €488

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Cheap return flights

KAYAK's recommended return flight deals from the most popular airlines that fly from San Francisco to London.
American Airlines Logo
SFO-LHR
10h 35mdirect
American Airlines Logo
LHR-SFO
11h 05mdirect
American Airlines
Find Deal
KLM Logo
SFO-LHR
10h 20mdirect
KLM Logo
LHR-SFO
11h 00mdirect
Air Canada Logo
SFO-LHR
10h 30mdirect
Air Canada Logo
LHR-SFO
11h 00mdirect
Air Canada
Find Deal
Aer Lingus Logo
SFO-LHR
10h 35mdirect
Aer Lingus Logo
LHR-SFO
11h 05mdirect
Aer Lingus
Find Deal
Austrian Airlines Logo
SFO-LHR
10h 30mdirect
Austrian Airlines Logo
LHR-SFO
11h 05mdirect
Austrian Airlines
Find Deal
Air France Logo
SFO-LHR
10h 20mdirect
Air France Logo
LHR-SFO
11h 00mdirect
Air France
Find Deal
Delta Logo
SFO-LHR
10h 20mdirect
Delta Logo
LHR-SFO
11h 00mdirect
Aeromexico Logo
SFO-LHR
10h 20mdirect
Aeromexico Logo
LHR-SFO
11h 00mdirect
Aeromexico
Find Deal
SWISS Logo
SFO-LHR
10h 30mdirect
SWISS Logo
LHR-SFO
11h 05mdirect
Air New Zealand Logo
SFO-LHR
10h 30mdirect
Air New Zealand Logo
LHR-SFO
11h 05mdirect
Air New Zealand
Find Deal
United Airlines Logo
SFO-LHR
10h 30mdirect
United Airlines Logo
LHR-SFO
11h 05mdirect
United Airlines
Find Deal
Alaska Airlines Logo
SFO-LHR
10h 35mdirect
Alaska Airlines Logo
LHR-SFO
11h 05mdirect
Alaska Airlines
Find Deal
Finnair Logo
SFO-LHR
10h 35mdirect
Finnair Logo
LHR-SFO
11h 05mdirect
Finnair
Find Deal
Iberia Logo
SFO-LHR
10h 25mdirect
Iberia Logo
LHR-SFO
11h 10mdirect
Iberia
Find Deal
Brussels Airlines Logo
SFO-LHR
10h 30mdirect
Brussels Airlines Logo
LHR-SFO
11h 05mdirect
Brussels Airlines
Find Deal
Lufthansa Logo
SFO-LHR
10h 30mdirect
Lufthansa Logo
LHR-SFO
11h 05mdirect
Lufthansa
Find Deal
Virgin Atlantic Logo
SFO-LHR
10h 20mdirect
Virgin Atlantic Logo
LHR-SFO
11h 00mdirect
Virgin Atlantic
Find Deal
British Airways Logo
SFO-LHR
10h 35mdirect
British Airways Logo
LHR-SFO
11h 05mdirect
British Airways
Find Deal

See travel insights to London from

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

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?

In general, October is the cheapest month to fly from San Francisco to London. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around €555. If you are unable to visit London during the month of October, then departing from San Francisco during the month September is also very affordable. Most momondo users find prices during this month for around €577.

What is the cheapest day to depart on your flight to London?

Our data shows that Tuesday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as €0. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from San Francisco to London for around €605.

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

The cheapest time of day to fly to London is in the morning when flights can be purchased for as low as €0. In contrast, the most expensive time of day to depart to London is in the afternoon when prices are around €601.

What is the cheapest San Francisco to London flight route?

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

How far in advance should I book a flight to London?

You are more likely to see cheaper flights to London from San Francisco when booking 3 weeks ahead of your departure date. In general, you can expect to find flights to London for around €685 when searching 3 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from San Francisco for as low as €676 on momondo.

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

There are 2 cabin classes available to choose from on San Francisco to London flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

As of April 2025, prices for San Francisco to London flights are approximately 23% more expensive when compared to flights at the same time last year.

When to book flights from San Francisco to London

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

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

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

Direct flights

None
There are no direct flights from San Francisco to London. There are no popular flight routes from San Francisco to London.

  • How far is San Francisco to London by plane?

    San Francisco and London are 8609.4 km apart from one another.

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

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

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

    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 stopovers 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.

  • What documentation or ID do you need to fly to London?

    The travel and health documents required for your trip to London 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 licence, and a passport valid for six-months after you plan to arrive at London. 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?


Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Gatwick
Chelmsford
Milton Keynes
Luton
Wembley
Hounslow
Southend-on-Sea
Slough
Watford
Enfield
Camberley
Abingdon
Borehamwood
Guildford
St. Albans
Woking
High Wycombe
Woodstock
Sudbury
Aylesbury

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?

Yes. All flights to London from San Francisco on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from San Francisco to London?

Once you have performed a search for San Francisco to London flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from San Francisco to London right now. Can momondo alert me if prices change?

Yes. momondo can track prices for San Francisco to London flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.


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Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 57.3 km from London