How long does it take to fly to London Stansted Airport?

The flight from California to London Stansted Airport depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from San Francisco (a popular airport in California) to London Heathrow Airport (the most popular airport in London Stansted Airport), then the flight time is 10h 10m on average. If you fly from Los Angeles (another popular airport in California) to London Heathrow Airport, then the average flight time is 10h 20m.

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

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

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

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

How old do you have to be to fly from California 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 California to London Stansted Airport.

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

The required travel and health documents for your London Stansted Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London Stansted Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$323 Cheap Flights from California to London Stansted Airport in 2025/26

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Cheap round-trip flights

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4:40 pm - 7:30 pm

SFO

STN

18h 50m2 stops

11:55 am - 2:35 pm

STN

SFO

34h 40m2 stops

$598Multiple Airlines

Sun, Feb 15 - Sun, Mar 1

4:40 pm - 7:30 pm

SFO

STN

18h 50m2 stops

11:55 am - 2:35 pm

STN

SFO

34h 40m2 stops

$600Multiple Airlines

Sun, Jan 11 - Fri, Jan 16

4:40 pm - 3:45 pm

SFO

STN

15h 05m1 stop

7:35 am - 2:35 pm

STN

SFO

15h 00m1 stop

$606Multiple Airlines

Mon, Jan 12 - Mon, Jan 19

8:25 am - 2:05 pm

SFO

STN

21h 40m2 stops

4:45 pm - 12:40 pm

STN

SFO

27h 55m2 stops

$607Multiple Airlines

Mon, Jan 12 - Mon, Jan 19

4:35 pm - 8:00 pm

SFO

STN

19h 25m2 stops

8:05 pm - 4:05 pm

STN

SFO

28h 00m2 stops

$613Multiple Airlines

Mon, Jan 12 - Thu, Jan 15

4:40 pm - 10:10 pm

SFO

STN

21h 30m1 stop

7:15 am - 2:35 pm

STN

SFO

15h 20m1 stop

$615Multiple Airlines

Sun, Feb 15 - Sat, Feb 21

8:30 pm - 4:50 pm

SAN

STN

36h 20m2 stops

6:15 am - 9:10 am

STN

SAN

34h 55m2 stops

$994Turkish Airlines

Tue, Apr 7 - Tue, Apr 21

10:59 am - 8:40 am

SAN

STN

37h 41m2 stops

6:15 pm - 10:44 pm

STN

SAN

36h 29m2 stops

$1,041SWISS

Thu, Feb 12 - Sat, Feb 21

10:20 am - 10:10 pm

SAN

STN

27h 50m2 stops

5:45 pm - 6:58 pm

STN

SAN

33h 13m2 stops

$1,092Turkish Airlines

Fri, Apr 24 - Sun, May 10

8:30 pm - 4:50 pm

SAN

STN

36h 20m2 stops

5:45 pm - 7:44 pm

STN

SAN

33h 59m2 stops

$1,128Turkish Airlines

Fri, Apr 3 - Fri, Apr 17

Turkish Airlines flights from California to London Stansted Airport

Our best Turkish Airlines deals on California to London Stansted Airport flight tickets

Turkish Airlines

Mar 17

SFO7:50 pmSan Francisco

37h 30m

1 stop

STN4:20 pmLondon Stansted

Mar 24

STN5:20 pmLondon Stansted

31h 25m

1 stop

SFO5:45 pmSan Francisco

$706

Find similar

Turkish Airlines

Mar 19

SFO7:50 pmSan Francisco

31h 00m

1 stop

STN9:50 amLondon Stansted

Mar 30

STN10:50 amLondon Stansted

32h 00m

1 stop

SFO10:50 amSan Francisco

$720

Find similar

Turkish Airlines

Apr 7

SAN8:30 pmSan Diego

36h 20m

2 stops

STN4:50 pmLondon Stansted

Apr 21

STN6:15 amLondon Stansted

34h 55m

2 stops

SAN9:10 amSan Diego

$994

Find similar

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

Sun 2/15

4:40 pm-7:30 pm

2 stops18h 50m

London Stansted

Sun 3/1

11:55 am-2:35 pm

2 stops34h 40m

$598

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

Sun 1/11

4:40 pm-7:30 pm

2 stops18h 50m

London Stansted

Fri 1/16

11:55 am-2:35 pm

2 stops34h 40m

$600

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

Mon 1/12

4:40 pm-3:45 pm

1 stop15h 05m

London Stansted

Mon 1/19

7:35 am-2:35 pm

1 stop15h 00m

$606

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

Mon 1/12

8:25 am-2:05 pm

2 stops21h 40m

London Stansted

Mon 1/19

4:45 pm-12:40 pm

2 stops27h 55m

$607

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

Mon 1/12

4:35 pm-8:00 pm

2 stops19h 25m

London Stansted

Thu 1/15

8:05 pm-4:05 pm

2 stops28h 00m

$613

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

Sun 2/15

4:40 pm-10:10 pm

1 stop21h 30m

London Stansted

Sat 2/21

7:15 am-2:35 pm

1 stop15h 20m

$615

San DiegoLondon

SAN - STN

SANSTN

San Diego

Tue 4/7

8:30 pm-4:50 pm

2 stops36h 20m

London Stansted

Tue 4/21

6:15 am-9:10 am

2 stops34h 55m

$994

San DiegoLondon

SAN - STN

SANSTN

San Diego

Thu 2/12

10:59 am-8:40 am

2 stops37h 41m

London Stansted

Sat 2/21

6:15 pm-10:44 pm

2 stops36h 29m

$1,041

San DiegoLondon

SAN - STN

SANSTN

San Diego

Fri 4/24

10:20 am-10:10 pm

2 stops27h 50m

London Stansted

Sun 5/10

5:45 pm-6:58 pm

2 stops33h 13m

$1,092

San DiegoLondon

SAN - STN

SANSTN

San Diego

Fri 4/3

8:30 pm-4:50 pm

2 stops36h 20m

London Stansted

Fri 4/17

5:45 pm-7:44 pm

2 stops33h 59m

$1,128

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 California 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

Prices

Airlines

Other information

What is the cheapest day to depart on your flight to London Stansted Airport?

The cheapest day to depart on your flight to London Stansted Airport is on a Wednesday when prices can be found for as low as $645. This is often the case because there is less demand to fly during this day of the week. On the other hand, Sunday is the most expensive day to depart from California because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $661.

Cheap California to London Stansted Airport flight deals and tips

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

Fastest flight time	12h 45m
Direct flights	None

The fastest flight from California to London Stansted Airport takes 12h 45m

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

Search flight deals

When did momondo last update prices for flights from California to London Stansted Airport?
Prices for flights from California to London Stansted Airport are refreshed on a daily basis.
How old do you have to be to fly from California 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 California to London Stansted Airport.
What documentation or ID do you need to fly to London Stansted Airport?
The required travel and health documents for your London Stansted Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London Stansted Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Gatwick

Hounslow

Milton Keynes

Dover

Luton

Slough

Guildford

Hayes

Dartford

Crawley

Brentwood

Wembley

Watford

Ilford

Cobham

Folkestone

Romford

Richmond

Uxbridge

Stansted

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

Finding the right flight to London from California is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to London quick and easy, saving you time and money.

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

Yes. All flights to London from California on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from California to London?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to London from California.

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

If you are not ready to book a flight from California to London now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to London and let you know when they change.