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Cheap flights from London Stansted Airport to San Francisco from £391

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 17/8. Fares are subject to change and may not be available on all flights or dates of travel.
STN — SFO
16 Jul — 23 Jul1
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 11 July 2025.

Round-trip from

£439

One-way from

£391

Popular in

July

Cheapest in

February

Average price

£662
25/8-1/9
  • 25/8-1/9
  • 4 total stops
  • 50h 55m total
  • London to San Francisco
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17/8
  • 17/8
  • 2 total stops
  • 46h 55m total
  • London to San Francisco
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (£81 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£11 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 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 11 July 2025.

Mon 25/814:55STN - SFO
2 stops33h 35mMultiple Airlines
Mon 1/919:40SFO - STN
2 stops17h 20mMultiple Airlines
Deal found 11/7£439

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 11 July 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

Mon 25/8

14:55-16:30

2 stops33h 35m

San Francisco

Mon 1/9

19:40-21:00

2 stops17h 20m

£439

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Sun 17/8

22:55-13:50

2 stops46h 55m

£391

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Tue 30/9

19:50-14:30

1 stop26h 40m

£472

Flights are sorted by cheapest return flights first.

Deals found on 9/7

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.

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Francisco. Reviews last updated 11 July 2025.
Get a feel of what it's like to fly with Lufthansa from London Stansted Airport to San Francisco by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Lufthansa
6.8
Okay
7,200 reviews
Check prices

Entertainment

6.4

Comfort

6.8

Crew

7.6

Boarding

7.0

Overall

6.8

Food

6.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

BHX - FRA

Not as good as when I traveled many years ago. My main problem was missing my flight from Frankfurt to Birmingham because of very late start from LA and was told delay wil be made up but then I had to wait 5 hours for my next booked fight . Asian vegetarian food was skimpy and horrible.
Lufthansa
6.8
Okay
7,200 reviews
Lufthansa
6.8
Okay
7,200 reviews
Check prices

Entertainment

6.4

Comfort

6.8

Crew

7.6

Boarding

7.0

Overall

6.8

Food

6.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

BHX - FRA

Not as good as when I traveled many years ago. My main problem was missing my flight from Frankfurt to Birmingham because of very late start from LA and was told delay wil be made up but then I had to wait 5 hours for my next booked fight . Asian vegetarian food was skimpy and horrible.

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 London Stansted Airport?

Book flights to London Stansted Airport if you plan to visit one of these locations
Santa Cruz
Vallejo
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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How does Cheapflights help users find flights 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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