How long is the flight from London Stansted Airport to San Francisco?

Departing from London Stansted Airport to San Francisco will take you 38h 35m. There are 5350 mi between London Stansted Airport and San Francisco.

In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 112.0 inches per month. January is typically the wettest month, when rainfall can reach 112.0 mm. July is typically the driest time to visit San Francisco when rainfall is around 0.0 mm.

If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 11.0 C).

What is the cheapest time of day to fly from STN to SFO?

When flying from London Stansted Airport to San Francisco, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What airport do you fly into for flights to San Francisco from London Stansted?

San Francisco (SFO), located 11.0 mi from the city center, is the airport you fly into when you book flights from London Stansted to San Francisco. 0 airlines have flights to San Francisco from London Stansted on a regular basis. Booking flights from London Stansted to San Francisco should not be difficult; the airport handles an average of 0 inbound flights from London Stansted per day.

Can I find deals for flights from Stansted to San Francisco that include hotel bookings?

Yes. In addition to deals on Stansted to San Francisco flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Stansted to San Francisco?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Stansted to San Francisco.

Can I find deals for business class flights from Stansted to San Francisco?

Yes. Cheapflights offers flight deals from Stansted to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£365+ Cheap Flights from London Stansted Airport to San Francisco

Cheap flight deals from Stansted to San Francisco

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Stansted to San Francisco
Explore the most affordable flight options available from Stansted to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 6 September 2026.

Wed 7/1011:15 -

2 stops32h 30m

Tue 13/1013:45 -

2 stops22h 50m

Deal found 4/9£438

Tue 6/1008:20 -

2 stops35h 25m

Tue 13/1013:45 -

2 stops22h 50m

Deal found 5/9£448

Thu 10/920:45 -

2 stops24h 30m

Wed 23/915:15 -

2 stops21h 05m

Deal found 2/9£471

Thu 1/1013:15 -

2 stops33h 25m

Thu 15/1016:45 -

2 stops21h 40m

Deal found 2/9£480

Wed 18/1112:45 -

2 stops34h 05m

Fri 27/1116:45 -

2 stops22h 45m

Deal found 5/9£482

Tue 13/1013:15 -

2 stops33h 25m

Fri 16/1016:45 -

3 stops22h 35m

Deal found 6/9£493

Fri 13/1120:50 -

2 stops24h 05m

Sun 22/1113:50 -

2 stops19h 40m

Deal found 4/9£494

Find flight deals from Stansted to San Francisco

Round-trip from	£438
One-way from	£365
Popular in	December
Cheapest in	February
Average price	£501

7/10-13/10
4 total stops
55h 20m total
London to San Francisco

Search Deals

5/10-31/12
3 total stops
51h 27m total
London to San Francisco

Search Deals

High demand for flights, 0% potential price rise

Search Deals

Cheapest flight prices on average. 1% potential price decrease (£6 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from London Stansted Airport to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonSan Francisco

STN London Stansted - SFO San Francisco

STNSFO

London Stansted

Fri 11/12

12:15-20:10

1 stop15h 55m

San Francisco

Wed 31/12

00:00-09:00

Nonstop0h 00m

£405

LondonSan Francisco

STN London Stansted - SFO San Francisco

STNSFO

London Stansted

Tue 29/9

06:30-21:55

2 stops23h 25m

San Francisco

Wed 31/12

00:00-09:00

Nonstop0h 00m

£488

LondonSan Francisco

STN London Stansted - SFO San Francisco

STNSFO

London Stansted

Fri 25/9

21:40-08:55

3 stops43h 15m

San Francisco

Wed 31/12

00:00-09:00

Nonstop0h 00m

£519

LondonSan Francisco

STN London Stansted - SFO San Francisco

STNSFO

London Stansted

Wed 14/10

06:30-15:55

1 stop17h 25m

San Francisco

Wed 31/12

00:00-09:00

Nonstop0h 00m

£593

Fastest return journey

LondonSan Francisco

STN London Stansted - SFO San Francisco

STNSFO

London Stansted

Tue 6/10

08:30-15:55

1 stop15h 25m

San Francisco

Wed 31/12

00:00-09:00

Nonstop0h 00m

£632

LondonSan Francisco

STN London Stansted - SFO San Francisco

STNSFO

London Stansted

Wed 16/9

06:30-20:59

2 stops22h 29m

San Francisco

Tue 27/10

16:10-19:35

2 stops20h 25m

£718

LondonSan Francisco

STN London Stansted - SFO San Francisco

STNSFO

London Stansted

Fri 11/9

06:35-15:50

1 stop17h 15m

San Francisco

Wed 31/12

00:00-09:00

Nonstop0h 00m

£735

LondonSan Francisco

STN London Stansted - SFO San Francisco

STNSFO

London Stansted

Mon 2/11

10:55-17:30

1 stop38h 35m

San Francisco

Mon 16/11

18:35-09:55

1 stop31h 20m

£736

LondonSan Francisco

STN London Stansted - SFO San Francisco

STNSFO

London Stansted

Sun 14/2

10:55-16:30

1 stop37h 35m

San Francisco

Fri 19/2

18:35-16:20

1 stop37h 45m

£756

LondonSan Francisco

STN London Stansted - SFO San Francisco

STNSFO

London Stansted

Sun 1/11

17:20-17:30

1 stop32h 10m

San Francisco

Wed 31/12

00:00-09:00

Nonstop0h 00m

£766

Flights are sorted by cheapest return flights first.

Deals found on 1/9

Showing 1-10 of 22 resultsSorted by cheapest first

Best time to book a flight from Stansted to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Stansted with our price prediction graph.

STN-SFO

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

What airport do you fly into for flights to San Francisco from London Stansted?
San Francisco (SFO), located 11.0 mi from the city center, is the airport you fly into when you book flights from London Stansted to San Francisco. 0 airlines have flights to San Francisco from London Stansted on a regular basis. Booking flights from London Stansted to San Francisco should not be difficult; the airport handles an average of 0 inbound flights from London Stansted per day.
How long is the flight from London Stansted Airport to San Francisco?
Departing from London Stansted Airport to San Francisco will take you 38h 35m. There are 5350 mi between London Stansted Airport and San Francisco.
Can I find deals for flights from Stansted to San Francisco that include hotel bookings?
Yes. In addition to deals on Stansted to San Francisco flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Stansted to San Francisco?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Stansted to San Francisco.
Can I find deals for business class flights from Stansted to San Francisco?
Yes. Cheapflights offers flight deals from Stansted to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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How does Cheapflights help users find flights from Stansted to San Francisco?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to San Francisco from Stansted today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Stansted to San Francisco?

Cheapflights simply makes it quick and affordable to book flights from Stansted to San Francisco by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Stansted to San Francisco with no change fees?

Need flexible booking options for your flight to San Francisco from Stansted? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Stansted to San Francisco become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to San Francisco from Stansted today and book when prices fit your budget.

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Cheap flights from London Stansted Airport to San Francisco from £365

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Stansted to San Francisco

Cheapest flights from Stansted to San FranciscoExplore the most affordable flight options available from Stansted to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 6 September 2026.

Explore the most affordable flight options available from Stansted to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 6 September 2026.

Best flights from Stansted to San FranciscoDiscover carefully curated flight deals from Stansted to San Francisco that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 6 September 2026.

Discover carefully curated flight deals from Stansted to San Francisco that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 6 September 2026.

Last-minute flights from Stansted to San FranciscoDiscover last-minute flight deals from Stansted to San Francisco. Data last updated 6 September 2026 and is based on user searches.

Discover last-minute flight deals from Stansted to San Francisco. Data last updated 6 September 2026 and is based on user searches.

One-way flights from Stansted to San FranciscoSearch for one-way flight options from Stansted to San Francisco. Find affordable one-way fares based on user searches. Data last updated 6 September 2026.

Search for one-way flight options from Stansted to San Francisco. Find affordable one-way fares based on user searches. Data last updated 6 September 2026.

Find flight deals from Stansted to San Francisco

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Cheapflights Fare Finder

Use the filters below to find and compare flights from London Stansted Airport to San Francisco that are best for you.

Best time to book a flight from Stansted to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Stansted with our price prediction graph.

Related info for your journey

What airport do you fly into for flights to San Francisco from London Stansted?

How long is the flight from London Stansted Airport to San Francisco?

Can I find deals for flights from Stansted to San Francisco that include hotel bookings?

How can I find direct flights from Stansted to San Francisco?

Can I find deals for business class flights from Stansted to San Francisco?

Travelling to a place near San Francisco?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Stansted to San Francisco

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Complete your trip

Complete your trip to San Francisco by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to California

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Search flights from Stansted to San Francisco by cabin class

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Stansted and San Francisco flights

Browse other Stansted and San Francisco flight options. Last updated on 6 September 2026.

Other flights from Stansted

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How does Cheapflights help users find flights from Stansted to San Francisco?

Why should you use Cheapflights to find cheap flight tickets from Stansted to San Francisco?

Can Cheapflights find flights from Stansted to San Francisco with no change fees?

Can Cheapflights notify me if prices for flights from Stansted to San Francisco become cheaper?

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Cheapest flights from Stansted to San Francisco
Explore the most affordable flight options available from Stansted to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 6 September 2026.

Best flights from Stansted to San Francisco
Discover carefully curated flight deals from Stansted to San Francisco that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 6 September 2026.

Last-minute flights from Stansted to San Francisco
Discover last-minute flight deals from Stansted to San Francisco. Data last updated 6 September 2026 and is based on user searches.

One-way flights from Stansted to San Francisco
Search for one-way flight options from Stansted to San Francisco. Find affordable one-way fares based on user searches. Data last updated 6 September 2026.