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Cheap flights from London Stansted Airport to San Francisco from £450

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 20/7. Fares are subject to change and may not be available on all flights or dates of travel.
STN — SFO
7 Jul — 14 Jul1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Stansted to San Francisco

Enter your travel dates to find the best prices.

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 7 June 2026.

Mon 7/912:00
STN
-
SFO
2 stops31h 45m
Multiple Airlines
Mon 21/915:05
SFO
-
STN
2 stops23h 20m
Multiple Airlines
Deal found 6/6£541
Tue 1/915:10
STN
-
SFO
2 stops31h 30m
Multiple Airlines
Tue 15/916:45
SFO
-
STN
2 stops20h 10m
Multiple Airlines
Deal found 3/6£555
Mon 21/915:15
STN
-
SFO
2 stops31h 25m
Multiple Airlines
Sat 3/1016:45
SFO
-
STN
3 stops23h 55m
Multiple Airlines
Deal found 6/6£556
Mon 31/815:15
STN
-
SFO
2 stops31h 25m
Multiple Airlines
Mon 7/916:45
SFO
-
STN
2 stops18h 50m
Multiple Airlines
Deal found 1/6£562
Wed 10/614:20
STN
-
SFO
2 stops31h 30m
Multiple Airlines
Tue 18/817:40
SFO
-
STN
1 stop20h 40m
Multiple Airlines
Deal found 2/6£565
Wed 10/614:20
STN
-
SFO
2 stops31h 30m
Multiple Airlines
Tue 25/817:40
SFO
-
STN
1 stop17h 55m
Multiple Airlines
Deal found 3/6£566
Wed 10/614:20
STN
-
SFO
2 stops31h 30m
Multiple Airlines
Wed 19/817:40
SFO
-
STN
1 stop21h 40m
Multiple Airlines
Deal found 2/6£567
Wed 10/614:20
STN
-
SFO
2 stops31h 30m
Multiple Airlines
Wed 26/817:40
SFO
-
STN
1 stop17h 50m
Multiple Airlines
Deal found 3/6£569
Tue 25/811:35
STN
-
SFO
2 stops35h 05m
Multiple Airlines
Tue 1/916:45
SFO
-
STN
2 stops20h 35m
Multiple Airlines
Deal found 4/6£573

Find flight deals from Stansted to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Stansted (STN) to San Francisco (SFO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 7 June 2026.

Round-trip from

£541

One-way from

£450

Popular in

December

Cheapest in

February

Average price

£541
7/9-21/9
  • 7/9-21/9
  • 4 total stops
  • 55h 05m total
  • London to San Francisco
Search Deals
20/7
  • 20/7
  • 2 total stops
  • 37h 50m total
  • London to San Francisco
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (£9 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£8 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Stansted to San Francisco that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 7 June 2026.
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 - SFO

STNSFO

London Stansted

Fri 20/11

17:20-16:30

1 stop31h 10m

San Francisco

Sat 28/11

18:35-09:55

1 stop31h 20m

£770

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Tue 6/10

17:35-16:40

1 stop31h 05m

San Francisco

Sat 10/10

18:45-09:55

1 stop31h 10m

£833

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Sat 3/10

17:45-16:40

1 stop30h 55m

San Francisco

Fri 16/10

18:45-22:10

1 stop19h 25m

£880

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Wed 9/9

10:50-10:50

1 stop32h 00m

San Francisco

Tue 15/9

18:45-16:40

1 stop37h 55m

£903

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Sat 24/10

17:45-17:30

1 stop31h 45m

San Francisco

Fri 6/11

19:35-09:55

1 stop30h 20m

£946

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Wed 1/7

17:45-10:50

1 stop25h 05m

San Francisco

Thu 23/7

18:45-16:50

1 stop38h 05m

£948

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Wed 28/10

10:55-17:30

1 stop37h 35m

San Francisco

Sat 7/11

19:35-09:55

1 stop30h 20m

£1,001

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Sat 5/9

17:45-16:40

1 stop30h 55m

San Francisco

Sat 19/9

18:45-09:55

1 stop31h 10m

£1,016
Fastest return journey

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Wed 1/7

17:45-10:50

1 stop25h 05m

San Francisco

Wed 5/8

18:45-22:10

1 stop19h 25m

£1,035

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Thu 27/8

17:35-16:40

1 stop31h 05m

San Francisco

Mon 7/9

12:55-16:40

1 stop19h 45m

£1,049

Flights are sorted by cheapest return flights first.

Deals found on 4/6

Showing 1-10 of 22 resultsSorted by cheapest first
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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.
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.

Cheapflights Insights

Everything you need to know about your flight from London Stansted Airport to San Francisco

How often are flights from London to San Francisco delayed?

About 33% of weekly flights between London and San Francisco have experienced delays in the past year, with the average delay time being 57 minutes.

What is the most punctual flight time for London to San Francisco flights?

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

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

Friday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.

Related info for your journey

Find useful and relevant information for your journey from Stansted to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • 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 31h 10m. 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.

See more FAQs

Travelling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Santa Cruz
Newark
San Bruno
Bodega Bay
South San Francisco
Sunnyvale

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Alternative routes for Stansted to San Francisco

See prices for flight routes from nearby airports that may be better suited for you.
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Heathrow to San Francisco flights
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Luton to Las Vegas flights
Gatwick to San Diego flights
Gatwick to Burbank flights
London City to San Diego flights
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Heathrow to Burbank flights
Stansted to San Diego flights
Gatwick to Ontario flights
Gatwick to San Jose flights
Southend to Los Angeles flights
Heathrow to Long Beach flights
Heathrow to Sacramento flights
London City to San Jose flights
Gatwick to Santa Ana flights
London City to Santa Ana flights
Gatwick to Sacramento flights
London City to Sacramento flights
Heathrow to Palm Springs flights
Heathrow to Santa Rosa flights
Stansted to San Jose flights
Heathrow to Reno flights
Gatwick to Tijuana flights
Southend to San Francisco flights
Southend to Las Vegas flights
London City to Ontario flights
Heathrow to Fresno flights
Stansted to Santa Ana flights
Gatwick to Reno flights
Heathrow to San Luis Obispo flights
London City to Tijuana flights
Southend to San Diego flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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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