How often are flights from San Francisco to London delayed?

Historically, on average around 100% of flights between San Francisco and London have experienced a delay on any given week. The average delay length over the past 12 months has been 127 minutes.

What is the most punctual flight time for San Francisco to London flights?

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Thursday is statistically the day of the week which experiences the fewest number of delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

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

Prices for flights from San Francisco Airport to London Stansted Airport are refreshed on a daily basis.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from San Francisco Airport to London Stansted Airport.

What documentation or ID do you need to fly to London Stansted Airport?

The travel and health documents you'll need for your trip to London Stansted Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London Stansted Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$445 Cheap Flights from San Francisco to London Stansted Airport in 2026

Find the cheapest flights from San Francisco to London

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:00 am - 8:00 pm

SFO

STN

30h 00m

3 stops

6:30 am - 9:55 pm

STN

SFO

23h 25m

3 stops

$782Multiple Airlines

Tue, Aug 18 - Tue, Aug 25

4:45 pm - 11:20 pm

SFO

STN

22h 35m

2 stops

11:10 am - 2:40 pm

STN

SFO

35h 30m

3 stops

$783Multiple Airlines

Sat, Aug 22 - Mon, Aug 31

4:45 pm - 7:35 pm

SFO

STN

18h 50m

2 stops

9:20 pm - 2:40 pm

STN

SFO

25h 20m

2 stops

$784Multiple Airlines

Mon, Aug 10 - Wed, Aug 26

8:10 am - 3:00 pm

SFO

STN

22h 50m

2 stops

7:35 am - 8:47 pm

STN

SFO

21h 12m

2 stops

$785Multiple Airlines

Thu, Sep 24 - Sun, Oct 4

8:30 am - 8:20 pm

SFO

STN

27h 50m

2 stops

12:40 pm - 2:05 pm

STN

SFO

33h 25m

2 stops

$786Multiple Airlines

Wed, Sep 9 - Sun, Sep 20

11:10 am - 7:25 pm

SFO

STN

24h 15m

2 stops

6:30 am - 12:07 am

STN

SFO

25h 37m

2 stops

$788Multiple Airlines

Mon, Aug 3 - Wed, Aug 19

4:45 pm - 5:35 pm

SFO

STN

16h 50m

2 stops

11:30 am - 2:40 pm

STN

SFO

35h 10m

2 stops

$789Multiple Airlines

Thu, Sep 10 - Wed, Sep 23

4:30 pm - 6:20 pm

SFO

STN

17h 50m

2 stops

7:05 pm - 2:30 pm

STN

SFO

27h 25m

2 stops

$790Multiple Airlines

Sun, Aug 9 - Mon, Aug 24

11:10 am - 7:25 pm

SFO

STN

24h 15m

2 stops

6:30 am - 12:07 am

STN

SFO

25h 37m

2 stops

$791Multiple Airlines

Mon, Aug 3 - Wed, Aug 19

4:45 pm - 12:10 am

SFO

STN

23h 25m

2 stops

3:10 pm - 2:40 pm

STN

SFO

31h 30m

2 stops

$792Multiple Airlines

Wed, Aug 12 - Tue, Aug 18

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

Tue 8/18

6:00 am-8:00 pm

3 stops30h 00m

London Stansted

Tue 8/25

6:30 am-9:55 pm

3 stops23h 25m

$782

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

Sat 8/22

4:45 pm-11:20 pm

2 stops22h 35m

London Stansted

Mon 8/31

11:10 am-2:40 pm

3 stops35h 30m

$783

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

Mon 8/10

4:45 pm-7:35 pm

2 stops18h 50m

London Stansted

Wed 8/26

9:20 pm-2:40 pm

2 stops25h 20m

$784

Quickest round-trip

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

Thu 9/24

8:10 am-3:00 pm

2 stops22h 50m

London Stansted

Sun 10/4

7:35 am-8:47 pm

2 stops21h 12m

$785

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

Wed 9/9

8:30 am-8:20 pm

2 stops27h 50m

London Stansted

Sun 9/20

12:40 pm-2:05 pm

2 stops33h 25m

$786

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

Mon 8/3

11:10 am-7:25 pm

2 stops24h 15m

London Stansted

Wed 8/19

6:30 am-12:07 am

2 stops25h 37m

$788

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

Thu 9/10

4:45 pm-5:35 pm

2 stops16h 50m

London Stansted

Wed 9/23

11:30 am-2:40 pm

2 stops35h 10m

$789

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

Sun 8/9

4:30 pm-6:20 pm

2 stops17h 50m

London Stansted

Mon 8/24

7:05 pm-2:30 pm

2 stops27h 25m

$790

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

Mon 8/3

11:10 am-7:25 pm

2 stops24h 15m

London Stansted

Wed 8/19

6:30 am-12:07 am

2 stops25h 37m

$791

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

Wed 8/12

4:45 pm-12:10 am

2 stops23h 25m

London Stansted

Tue 8/18

3:10 pm-2:40 pm

2 stops31h 30m

$792

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

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

Airlines

Delays

What is the cheapest airline that flies from San Francisco to London Stansted?

Turkish Airlines is the most popular carrier operating from San Francisco to London Stansted

When to book flights from San Francisco to London Stansted Airport

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

Estimated round-trip price

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

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

Fastest flight time	14h 55m
Direct flights	None

The fastest flight from San Francisco to London Stansted Airport takes 14h 55m

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

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Frequently asked questions about flying from San Francisco to London Stansted Airport

How far is San Francisco to London Stansted by plane?
The distance between San Francisco and London Stansted is about 5341.0 mi. A reasonable flight in good conditions will take 14h 55m.
When did momondo last update prices for flights from San Francisco Airport to London Stansted Airport?
Prices for flights from San Francisco Airport to London Stansted Airport are refreshed on a daily basis.
How old do you have to be to fly from San Francisco Airport to London Stansted Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from San Francisco Airport to London Stansted Airport.
What documentation or ID do you need to fly to London Stansted Airport?
The travel and health documents you'll need for your trip to London Stansted Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London Stansted Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Hounslow

Gatwick

Milton Keynes

Luton

Hayes

Dover

Crawley

Croydon

Wembley

Stansted

Harrow

Slough

Watford

Ilford

Cobham

Brentwood

Folkestone

Guildford

Romford

Uxbridge

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from San Francisco to London. momondo saves you time and could save you money on your trip.

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

Flights from San Francisco to London 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 San Francisco to London?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from San Francisco to London.

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

Of course. momondo tracks the price of San Francisco to London flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Cheap flights from San Francisco to London from $445

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Francisco to London departing on 7/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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

What is the cheapest airline that flies from San Francisco to London Stansted?

How often are flights from San Francisco to London delayed?

What is the most punctual flight time for San Francisco to London flights?

What day of the week experiences the fewest flight delays on this route?

When to book flights from San Francisco to London Stansted Airport

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

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

Fastest flight time

Direct flights

Frequently asked questions about flying from San Francisco to London Stansted Airport

Traveling to a place near London?

Why use momondo?

An easier way to manage your London Stansted Airport trip

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Popular cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo

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According to popular flight searches on momondo this year

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List of cabin classes available on flights landing in London. Availability may vary depending on flight origin and airline.

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