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Cheap flights from London Stansted Airport to San Francisco from £403

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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
STN — SFO
31 Aug — 7 Sep1
1 adult

Cheap 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 26 August 2025.

Round-trip from

£440

One-way from

£403

Popular in

July

Cheapest in

February

Average price

£611
9/9-16/9
  • 9/9-16/9
  • 4 total stops
  • 56h 35m total
  • London to San Francisco
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1/9
  • 1/9
  • 3 total stops
  • 26h 55m total
  • London to San Francisco
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£66 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£11 potential savings vs. average return price).
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Average for round-trip flights in August 2025
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Find flight deals from Stansted to San Francisco

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 26 August 2025.

Tue 9/911:25STN - SFO
2 stops35h 10mMultiple Airlines
Tue 16/918:45SFO - STN
2 stops21h 25mMultiple Airlines
Deal found 25/8£440
Thu 11/913:10STN - SFO
2 stops35h 20mMultiple Airlines
Thu 18/919:40SFO - STN
2 stops18h 45mMultiple Airlines
Deal found 24/8£447
Fri 12/922:50STN - SFO
2 stops25h 40mMultiple Airlines
Thu 18/919:40SFO - STN
2 stops18h 45mMultiple Airlines
Deal found 24/8£451
Mon 22/916:10STN - SFO
2 stops32h 20mMultiple Airlines
Sun 28/919:40SFO - STN
2 stops17h 35mMultiple Airlines
Deal found 24/8£455
Tue 23/911:25STN - SFO
2 stops35h 10mMultiple Airlines
Tue 30/920:10SFO - STN
1 stop15h 15mMultiple Airlines
Deal found 24/8£457
Tue 14/1014:45STN - SFO
2 stops33h 45mMultiple Airlines
Tue 21/1019:40SFO - STN
2 stops17h 35mMultiple Airlines
Deal found 24/8£457
Thu 18/907:05STN - SFO
2 stops20h 46mMultiple Airlines
Thu 25/919:30SFO - STN
2 stops21h 15mMultiple Airlines
Deal found 25/8£460
Fri 3/1007:15STN - SFO
2 stops20h 36mMultiple Airlines
Sun 19/1014:40SFO - STN
2 stops25h 19mMultiple Airlines
Deal found 25/8£465
Thu 20/1112:25STN - SFO
2 stops34h 10mMultiple Airlines
Thu 27/1116:40SFO - STN
2 stops22h 30mMultiple Airlines
Deal found 25/8£471
Wed 22/1013:15STN - SFO
2 stops35h 15mMultiple Airlines
Wed 29/1018:00SFO - STN
2 stops21h 50mMultiple Airlines
Deal found 24/8£474

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 26 August 2025.
Use the filters below to find and compare flights from London Stansted Airport to San Francisco that are best for you.

Fly from

Stansted

Fly to

San Francisco

Route

Depart

Return

Price

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Tue 9/9

11:25-14:35

2 stops35h 10m

San Francisco

Tue 16/9

18:45-00:10

2 stops21h 25m

£440

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Thu 11/9

13:10-16:30

2 stops35h 20m

San Francisco

Thu 18/9

19:40-22:25

2 stops18h 45m

£447

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Fri 12/9

22:50-16:30

2 stops25h 40m

San Francisco

Thu 18/9

19:40-22:25

2 stops18h 45m

£451

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Mon 22/9

16:10-16:30

2 stops32h 20m

San Francisco

Sun 28/9

19:40-21:15

2 stops17h 35m

£455

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Tue 23/9

11:25-14:35

2 stops35h 10m

San Francisco

Tue 30/9

20:10-19:25

1 stop15h 15m

£457

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Tue 14/10

14:45-16:30

2 stops33h 45m

San Francisco

Tue 21/10

19:40-21:15

2 stops17h 35m

£457

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Thu 18/9

07:05-19:51

2 stops20h 46m

San Francisco

Thu 25/9

19:30-00:45

2 stops21h 15m

£460

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Fri 3/10

07:15-19:51

2 stops20h 36m

San Francisco

Sun 19/10

14:40-23:59

2 stops25h 19m

£465

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Thu 20/11

12:25-14:35

2 stops34h 10m

San Francisco

Thu 27/11

16:40-23:10

2 stops22h 30m

£471

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Wed 22/10

13:15-16:30

2 stops35h 15m

San Francisco

Wed 29/10

18:00-22:50

2 stops21h 50m

£474

Flights are sorted by cheapest return flights first.

Deals found on 25/8

Showing 1-10 of 19 results
1
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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.

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 11.8 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.

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

    Currently, February is the cheapest month in which you can book a flight from London Stansted Airport to San Francisco (average of £538). Flying from London Stansted Airport to San Francisco in July is currently the most expensive (average of £803). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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
South San Francisco
Bodega Bay
Pacific Grove
Union City

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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 San Jose flights
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Fly with Cheapflights

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

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

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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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