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Cheap flights from London Stansted Airport to San Francisco from £424

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 12/11. Fares are subject to change and may not be available on all flights or dates of travel.
STN — SFO
3 Aug — 10 Aug1
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 4 July 2026.

Wed 23/921:30
STN
-
SFO
2 stops28h 30m
Multiple Airlines
Tue 29/915:05
SFO
-
STN
2 stops21h 55m
Multiple Airlines
Deal found 4/7£457
Sun 23/820:05
STN
-
SFO
2 stops26h 25m
Multiple Airlines
Sun 6/916:30
SFO
-
STN
2 stops24h 15m
Multiple Airlines
Deal found 3/7£465
Wed 30/912:15
STN
-
SFO
2 stops34h 25m
Multiple Airlines
Wed 7/1016:45
SFO
-
STN
2 stops23h 25m
Multiple Airlines
Deal found 1/7£471
Thu 27/814:05
STN
-
SFO
2 stops32h 35m
Multiple Airlines
Wed 9/916:45
SFO
-
STN
2 stops23h 25m
Multiple Airlines
Deal found 4/7£475
Wed 9/921:20
STN
-
SFO
2 stops25h 20m
Multiple Airlines
Wed 16/916:45
SFO
-
STN
2 stops23h 25m
Multiple Airlines
Deal found 29/6£476
Thu 27/819:15
STN
-
SFO
2 stops27h 15m
Multiple Airlines
Tue 8/916:30
SFO
-
STN
2 stops20h 25m
Multiple Airlines
Deal found 4/7£478
Wed 28/1011:35
STN
-
SFO
2 stops35h 15m
Multiple Airlines
Wed 4/1116:45
SFO
-
STN
2 stops17h 45m
Multiple Airlines
Deal found 29/6£486
Tue 8/915:10
STN
-
SFO
3 stops31h 30m
Multiple Airlines
Tue 22/916:45
SFO
-
STN
2 stops20h 10m
Multiple Airlines
Deal found 2/7£487

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 4 July 2026.

Round-trip from

£457

One-way from

£424

Popular in

December

Cheapest in

February

Average price

£616
23/9-29/9
  • 23/9-29/9
  • 4 total stops
  • 50h 25m total
  • London to San Francisco
Search Deals
12/11
  • 12/11
  • 2 total stops
  • 35h 00m total
  • London to San Francisco
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (£6 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£7 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 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 4 July 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
Fastest return journey

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Wed 30/9

10:50-16:40

1 stop37h 50m

San Francisco

Thu 15/10

12:55-16:40

1 stop19h 45m

£732

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Wed 18/11

10:55-16:30

1 stop37h 35m

San Francisco

Sun 22/11

18:35-16:20

1 stop37h 45m

£745

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

£892

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Fri 11/9

17:35-16:40

1 stop31h 05m

San Francisco

Fri 18/9

18:45-09:55

1 stop31h 10m

£898

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Sat 31/10

17:20-18:30

1 stop32h 10m

San Francisco

Mon 9/11

18:35-09:55

1 stop31h 20m

£912

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Sun 23/8

06:40-10:50

1 stop36h 10m

San Francisco

Sat 5/9

18:45-09:55

1 stop31h 10m

£1,002

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Wed 4/11

10:55-17:30

1 stop38h 35m

San Francisco

Sun 8/11

18:35-16:20

1 stop37h 45m

£1,040

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Fri 21/8

10:50-16:40

1 stop37h 50m

San Francisco

Sun 6/9

18:45-16:40

1 stop37h 55m

£1,057

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Thu 20/8

17:35-16:40

1 stop31h 05m

San Francisco

Sun 23/8

18:45-16:40

1 stop37h 55m

£1,136

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Thu 13/8

17:35-16:40

1 stop31h 05m

San Francisco

Thu 20/8

18:45-09:55

1 stop31h 10m

£1,356

Flights are sorted by cheapest return flights first.

Deals found on 29/6

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 37h 50m. 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
San Bruno
Newark
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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Southend to San Francisco flights
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London City to Oakland flights
London City to Ontario flights
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London City to Sacramento flights
Gatwick to Palm Springs 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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