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.

£364 Cheap Flights from London Stansted Airport to San Francisco in 2026

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Find the cheapest flights from London Stansted Airport to San Francisco

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One-way

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Enter your travel dates to find the best prices.

16:15 - 14:40

STN

SFO

30h 25m

2 stops

16:45 - 23:20

SFO

STN

22h 35m

2 stops

£444Multiple Airlines

Sat, 25 Apr - Sat, 2 May

06:30 - 15:35

STN

SFO

17h 05m

1 stop

17:20 - 21:20

SFO

STN

20h 00m

1 stop

£446Multiple Airlines

Fri, 27 Feb - Mon, 2 Mar

12:00 - 14:35

STN

SFO

34h 35m

2 stops

16:40 - 21:20

SFO

STN

20h 40m

2 stops

£451Multiple Airlines

Fri, 27 Feb - Mon, 2 Mar

22:00 - 12:45

STN

SFO

46h 45m

2 stops

19:40 - 20:25

SFO

STN

16h 45m

1 stop

£457Multiple Airlines

Mon, 13 Apr - Sun, 19 Apr

16:15 - 14:40

STN

SFO

30h 25m

3 stops

16:45 - 23:20

SFO

STN

22h 35m

2 stops

£463Multiple Airlines

Sat, 25 Apr - Sat, 2 May

14:30 - 13:25

STN

SFO

30h 55m

2 stops

15:40 - 20:15

SFO

STN

20h 35m

2 stops

£469Multiple Airlines

Tue, 24 Feb - Tue, 3 Mar

09:35 - 11:50

STN

SFO

34h 15m

2 stops

16:40 - 19:30

SFO

STN

19h 50m

2 stops

£471Multiple Airlines

Mon, 23 Feb - Sun, 8 Mar

06:30 - 15:35

STN

SFO

17h 05m

1 stop

17:20 - 20:05

SFO

STN

18h 45m

1 stop

£491Multiple Airlines

Fri, 20 Feb - Fri, 27 Feb

05:55 - 15:35

STN

SFO

16h 40m

2 stops

17:40 - 22:25

SFO

STN

21h 45m

2 stops

£496Multiple Airlines

Tue, 10 Mar - Tue, 17 Mar

20:05 - 15:35

STN

SFO

26h 30m

2 stops

17:40 - 22:05

SFO

STN

21h 25m

2 stops

£496Multiple Airlines

Mon, 9 Mar - Mon, 23 Mar

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

Sat 25/4

16:15-14:40

2 stops30h 25m

San Francisco

Sat 2/5

16:45-23:20

2 stops22h 35m

£444

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Fri 27/2

06:30-15:35

1 stop17h 05m

San Francisco

Mon 2/3

17:20-21:20

1 stop20h 00m

£446

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Fri 27/2

12:00-14:35

2 stops34h 35m

San Francisco

Mon 2/3

16:40-21:20

2 stops20h 40m

£451

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Mon 13/4

22:00-12:45

2 stops46h 45m

San Francisco

Sun 19/4

19:40-20:25

1 stop16h 45m

£457

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Sat 25/4

16:15-14:40

3 stops30h 25m

San Francisco

Sat 2/5

16:45-23:20

2 stops22h 35m

£463

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Tue 24/2

14:30-13:25

2 stops30h 55m

San Francisco

Tue 3/3

15:40-20:15

2 stops20h 35m

£469

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Mon 23/2

09:35-11:50

2 stops34h 15m

San Francisco

Sun 8/3

16:40-19:30

2 stops19h 50m

£471

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Fri 20/2

06:30-15:35

1 stop17h 05m

San Francisco

Fri 27/2

17:20-20:05

1 stop18h 45m

£491

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Tue 10/3

05:55-15:35

2 stops16h 40m

San Francisco

Tue 17/3

17:40-22:25

2 stops21h 45m

£496

LondonSan Francisco

STN - SFO

STNSFO

London Stansted

Mon 9/3

20:05-15:35

2 stops26h 30m

San Francisco

Mon 23/3

17:40-22:05

2 stops21h 25m

£496

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 Thursday when prices can be found for as low as £558. 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 £658. 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 morning. Flights from London Stansted Airport to San Francisco during this time can be as low as £554. Try not to purchase tickets at midday because they tend to be around £815. 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

Fastest flight time	16h 35m
Direct flights	None

The fastest flight from London Stansted Airport to San Francisco takes 16h 35m

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 16h 35m.
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.

Sunnyvale

Santa Clara

Seaside

Big Sur

Rohnert Park

Campbell

Palo Alto

Santa Cruz

Roseville

Novato

South San Francisco

Capitola

Aptos

Sausalito

San Bruno

Woodland

Pacific Grove

Redwood City

Mill Valley

Burlingame

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.