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Cheap flights from London Stansted Airport to San Francisco from £371

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 28/8. Fares are subject to change and may not be available on all flights or dates of travel.
STN — SFO
4 Sep — 11 Sep1
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 5 August 2026.

Thu 3/920:45 -
2 stops24h 30m
Wed 16/915:15 -
2 stops21h 05m
Deal found 4/8£466
Tue 8/911:35 -
2 stops35h 05m
Sun 13/916:45 -
2 stops22h 40m
Deal found 31/7£468
Thu 17/912:00 -
3 stops34h 40m
Thu 24/916:45 -
2 stops22h 35m
Deal found 3/8£469
Tue 15/915:55 -
2 stops29h 20m
Thu 24/915:15 -
2 stops24h 40m
Deal found 31/7£470
Tue 22/915:10 -
2 stops31h 30m
Tue 29/916:45 -
2 stops20h 10m
Deal found 30/7£484
Wed 16/912:05 -
2 stops33h 10m
Wed 23/915:15 -
2 stops21h 05m
Deal found 2/8£486

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 5 August 2026.

Round-trip from

£466

One-way from

£371

Popular in

July

Cheapest in

February

Average price

£593
3/9-16/9
  • 3/9-16/9
  • 4 total stops
  • 45h 35m total
  • London to San Francisco
Search Deals
28/8
  • 28/8
  • 3 total stops
  • 31h 15m total
  • London to San Francisco
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£53 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 August 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 5 August 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

Tue 22/9

15:10-23:20

3 stops40h 10m

San Francisco

Fri 25/9

08:30-12:00

2 stops19h 30m

£729

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Thu 12/11

10:55-16:30

1 stop37h 35m

San Francisco

Tue 17/11

18:35-16:20

1 stop37h 45m

£729

LondonSan Francisco

STN - SFO

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

£737

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Mon 12/10

10:50-16:40

1 stop37h 50m

San Francisco

Sat 17/10

18:45-09:55

1 stop31h 10m

£740

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

£766

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Tue 22/9

17:35-16:40

1 stop31h 05m

San Francisco

Wed 14/10

18:45-22:10

1 stop19h 25m

£795

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Tue 15/9

17:35-16:40

1 stop31h 05m

San Francisco

Tue 22/9

18:45-16:40

1 stop37h 55m

£827
Fastest return journey

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Mon 21/9

08:15-14:40

1 stop14h 25m

San Francisco

Fri 25/9

16:45-15:25

1 stop14h 40m

£856

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Fri 9/10

10:50-16:40

1 stop37h 50m

San Francisco

Sat 7/11

19:35-09:55

1 stop30h 20m

£907

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Thu 17/9

17:35-16:40

1 stop31h 05m

San Francisco

Thu 24/9

12:50-09:55

1 stop37h 05m

£969

Flights are sorted by cheapest return flights first.

Deals found on 4/8

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 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.

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
Roseville
Newark
Bodega Bay
Sunnyvale
South San Francisco

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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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London City to Oakland flights
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Southend to Las Vegas flights
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London City to Burbank flights
Gatwick to Palm Springs flights
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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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