STN - SFO

£244 Find cheap flights from London Stansted Airport to San Francisco

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Stansted to San Francisco departing on 15/1. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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Search hundreds of travel sites at once for deals on flights to San Francisco

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to San Francisco, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to San Francisco, as well as popular online travel agencies
In the last 7 days, travellers have searched 47,107,125 times on KAYAK, and here's why:

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Cheap flight deals from London Stansted Airport to San Francisco (STN-SFO)

 
These are the cheapest deals for flights from Stansted to San Francisco currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent return flight deals from Stansted to San Francisco

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Stansted to San Francisco.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
07:25 - 15:40STN-SFO
16h 15m1 stop
17:30 - 15:25SFO-STN
13h 55m1 stop
Sat, 11 Jan - Sat, 18 Jan
09:05 - 11:50STN-SFO
34h 45m2 stops
13:50 - 20:35SFO-STN
22h 45m2 stops
Tue, 14 Jan - Tue, 21 Jan
18:15 - 20:10STN-SFO
57h 55m2 stops
16:40 - 00:30SFO-STN
23h 50m1 stop
Mon, 2 Dec - Mon, 9 Dec
20:55 - 20:10STN-SFO
55h 15m2 stops
19:15 - 23:55SFO-STN
20h 40m1 stop
Mon, 2 Dec - Fri, 6 Dec
06:30 - 15:40STN-SFO
41h 10m2 stops
16:40 - 17:35SFO-STN
16h 55m1 stop
Sat, 11 Jan - Sat, 18 Jan
08:30 - 15:40STN-SFO
15h 10m1 stop
17:30 - 23:40SFO-STN
22h 10m1 stop
Fri, 13 Dec - Fri, 27 Dec
06:30 - 15:30STN-SFO
17h 00m1 stop
17:20 - 17:50SFO-STN
16h 30m1 stop
Sat, 7 Dec - Sun, 15 Dec
06:30 - 15:30STN-SFO
17h 00m1 stop
07:45 - 13:20SFO-STN
21h 35m2 stops
Sat, 7 Dec - Sun, 15 Dec
07:40 - 15:40STN-SFO
16h 00m1 stop
17:30 - 15:55SFO-STN
14h 25m1 stop
Mon, 30 Dec - Mon, 20 Jan
07:40 - 15:40STN-SFO
16h 00m1 stop
17:30 - 16:35SFO-STN
15h 05m1 stop
Mon, 30 Dec - Sun, 19 Jan

Flights from Stansted to San Francisco - Travel Insights & Trends

Get data-powered insights and trends into flights from Stansted to San Francisco to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from London Stansted Airport to San Francisco?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from London Stansted Airport to San Francisco, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from London Stansted Airport to San Francisco is February, where tickets cost £422 on average. On the other hand, the most expensive months are July and August, where the average cost of tickets is £709 and £709 respectively.

How far in advance should I book a flight from London Stansted Airport to San Francisco?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from London Stansted Airport to San Francisco, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from London Stansted Airport to San Francisco, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 121 days before departure.

Good to know - Cheap tickets from London Stansted Airport to San Francisco

Low season

April

High season

May

Cheapest flight

£244
Best time to beat the crowds (20% less expensive on average)
Most popular time to fly and prices are also 8% lower on average.
Flight from London Stansted Airport to San Francisco

When to book flights from Stansted to San Francisco

Are your dates flexible? Find out the best times to travel from Stansted to San Francisco based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking London Stansted Airport to San Francisco flights

  • What is the cheapest flight from London Stansted Airport to San Francisco?

    In the last 3 days, the lowest price for a flight from London Stansted Airport to San Francisco was £309 for a one-way ticket and £794 for a return.

  • Which aircraft models fly most regularly from London Stansted Airport to San Francisco?

    We unfortunately don’t have that data for this specific route.

  • How does KAYAK find such low prices on flights from London Stansted Airport to San Francisco?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London Stansted Airport to San Francisco.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London Stansted Airport to San Francisco?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Francisco from London Stansted Airport is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London Stansted Airport to San Francisco?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to San Francisco with an airline and back to London Stansted Airport with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London Stansted Airport to San Francisco?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Francisco from London Stansted Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Book cheap flights from London to San Francisco

Cheapest flights to San Francisco from London found in 2024 and 2025

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from London to San Francisco found on KAYAK in the last 72 hours.
15/1Wed
3 stops
53h 35mSTN-SFO
£244
19/1Sun
3 stops
40h 50mSTN-SFO
£285
24/1Fri
3 stops
47h 20mSTN-SFO
£303
12/1Sun
3 stops
40h 46mSTN-SFO
£306
12/12Thu
3 stops
40h 50mSTN-SFO
£314
9/1Thu
3 stops
40h 46mSTN-SFO
£319
5/12Thu
3 stops
40h 50mSTN-SFO
£326
26/11Tue
2 stops
43h 30mSTN-SFO
£328
5/12Thu
3 stops
40h 50mSTN-SFO
£332
6/12Fri
3 stops
59h 30mSTN-SFO
£341

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Last minute flights from Stansted to San Francisco

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from London to San Francisco that are departing in the next 10 days.
25/11Mon
multi-stop
27h 55mSTN-SFO
10/12Tue
multi-stop
17h 40mSFO-STN
£637
25/11Mon
multi-stop
53h 10mSTN-SFO
29/11Fri
multi-stop
20h 40mSFO-STN
£740
25/11Mon
multi-stop
27h 55mSTN-SFO
2/12Mon
multi-stop
17h 45mSFO-STN
£774
25/11Mon
multi-stop
17h 00mSTN-SFO
2/12Mon
multi-stop
39h 30mSFO-STN
£904

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Everything you need to know for your flight from Stansted to San Francisco

Information on your arrival and departure airports

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