When did momondo last update prices for flights from London Stansted Airport to San Francisco Airport?

Prices for flights from London Stansted Airport to San Francisco Airport were last updated today.

How old do you have to be to fly from London Stansted Airport to San Francisco Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London Stansted Airport to San Francisco Airport.

What documentation or ID do you need to fly to San Francisco Airport?

The necessary travel and health documents for your San Francisco Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

£334 Cheap Flights from London Stansted Airport to San Francisco in 2025/26

1 adult

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Find the cheapest flights from London Stansted Airport to San Francisco

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Enter your travel dates to find the best prices.

21:30 - 11:50STN-SFO

22h 20m2 stops

15:40 - 21:20SFO-STN

21h 40m2 stops

£406Multiple Airlines

Find Deal

Thu, 20 Nov - Fri, 28 Nov

16:30 - 14:35STN-SFO

30h 05m2 stops

16:40 - 23:20SFO-STN

22h 40m2 stops

£419Multiple Airlines

Find Deal

Thu, 20 Nov - Thu, 27 Nov

06:30 - 15:35STN-SFO

17h 05m1 stop

17:20 - 21:20SFO-STN

20h 00m1 stop

£433Multiple Airlines

Find Deal

Tue, 16 Dec - Mon, 5 Jan

12:00 - 14:35STN-SFO

34h 35m2 stops

16:40 - 23:20SFO-STN

22h 40m3 stops

£437Multiple Airlines

Find Deal

Thu, 20 Nov - Thu, 27 Nov

08:30 - 16:35STN-SFO

16h 05m1 stop

17:20 - 21:05SFO-STN

19h 45m1 stop

£442Multiple Airlines

Find Deal

Sun, 23 Nov - Wed, 3 Dec

08:30 - 16:35STN-SFO

15h 05m1 stop

17:20 - 15:05SFO-STN

13h 45m1 stop

£451Multiple Airlines

Find Deal

Wed, 29 Oct - Wed, 5 Nov

06:30 - 15:35STN-SFO

17h 05m1 stop

17:20 - 21:20SFO-STN

20h 00m1 stop

£453Multiple Airlines

Find Deal

Wed, 12 Nov - Mon, 17 Nov

06:30 - 15:35STN-SFO

17h 05m1 stop

17:20 - 21:20SFO-STN

20h 00m1 stop

£453Multiple Airlines

Find Deal

Fri, 14 Nov - Mon, 17 Nov

13:30 - 14:35STN-SFO

33h 05m2 stops

16:40 - 23:20SFO-STN

22h 40m2 stops

£471Multiple Airlines

Find Deal

Fri, 21 Nov - Thu, 27 Nov

15:15 - 14:35STN-SFO

31h 20m2 stops

16:40 - 23:20SFO-STN

22h 40m3 stops

£476Multiple Airlines

Find Deal

Fri, 21 Nov - Thu, 27 Nov

momondo Fare Finder

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

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Thu 20/11

21:30-11:50

2 stops22h 20m

San Francisco

Fri 28/11

15:40-21:20

2 stops21h 40m

£406

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Thu 20/11

16:30-14:35

2 stops30h 05m

San Francisco

Thu 27/11

16:40-23:20

2 stops22h 40m

£419

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Tue 16/12

06:30-15:35

1 stop17h 05m

San Francisco

Mon 5/1

17:20-21:20

1 stop20h 00m

£433

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Thu 20/11

12:00-14:35

2 stops34h 35m

San Francisco

Thu 27/11

16:40-23:20

3 stops22h 40m

£437

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Sun 23/11

08:30-16:35

1 stop16h 05m

San Francisco

Wed 3/12

17:20-21:05

1 stop19h 45m

£442

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Wed 29/10

08:30-16:35

1 stop15h 05m

San Francisco

Wed 5/11

17:20-15:05

1 stop13h 45m

£451

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Wed 12/11

06:30-15:35

1 stop17h 05m

San Francisco

Mon 17/11

17:20-21:20

1 stop20h 00m

£453

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Fri 14/11

06:30-15:35

1 stop17h 05m

San Francisco

Mon 17/11

17:20-21:20

1 stop20h 00m

£453

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Fri 21/11

13:30-14:35

2 stops33h 05m

San Francisco

Thu 27/11

16:40-23:20

2 stops22h 40m

£471

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Fri 21/11

15:15-14:35

2 stops31h 20m

San Francisco

Thu 27/11

16:40-23:20

3 stops22h 40m

£476

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from London Stansted Airport to San Francisco

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to San Francisco?

The cheapest day to depart on your flight to San Francisco is on a Tuesday when prices can be found for as low as £577. This is often the case because there is less demand to fly during this day of the week. Flights from London Stansted Airport to San Francisco on a Sunday will generally be more expensive and average around £664. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to San Francisco?

Our most recent data shows that the best time of day to fly to San Francisco is in the evening. Flights from London Stansted Airport to San Francisco during this time can be as low as £479. Try not to purchase tickets at midday because they tend to be around £951. Of course, these prices can vary depending on the time of year and what airport you fly to.

When to book flights from London Stansted Airport to San Francisco

Are you open to changing your travel dates? Check out the ideal times to fly from London Stansted Airport to San Francisco according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap London Stansted Airport to San Francisco (STN to SFO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Stansted Airport to San Francisco

Direct flights	None

There are no direct flights from London Stansted Airport to San Francisco. There are no popular flight routes from London Stansted Airport to San Francisco.

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How far is London Stansted to San Francisco by plane?
The distance between London Stansted and San Francisco is about 5340.7 mi. In terms of flight time, this usually takes a little over 15h 05m.
When did momondo last update prices for flights from London Stansted Airport to San Francisco Airport?
Prices for flights from London Stansted Airport to San Francisco Airport were last updated today.
How old do you have to be to fly from London Stansted Airport to San Francisco Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London Stansted Airport to San Francisco Airport.
What documentation or ID do you need to fly to San Francisco Airport?
The necessary travel and health documents for your San Francisco Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Carmel-by-the-Sea

Santa Clara

Seaside

Salinas

Big Sur

Rohnert Park

Sunnyvale

San Ramon

South San Francisco

Capitola

Campbell

Palo Alto

Sausalito

San Bruno

Woodland

Santa Cruz

Redwood City

Burlingame

Modesto

Aptos

Why use momondo?

Why should I use momondo to find a flight deal from London to San Francisco?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from London to San Francisco . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from London to San Francisco with flexible booking policies on momondo?

Flights from London to San Francisco with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from London to San Francisco?

Once all potential London to San Francisco flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from London to San Francisco right now. Can momondo alert me if prices change?

If you are simply researching potential flights to San Francisco, momondo offers a useful price alert feature which will track prices for flights to San Francisco from London and alert you when they change.