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Cheap flights from San Francisco to London from $366

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 3/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from San Francisco to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
4:40 pm - 8:15 pm
SFO
-
STN
19h 35m
2 stops
Multiple Airlines Logo
11:55 am - 2:35 pm
STN
-
SFO
34h 40m
2 stops
$598Multiple Airlines
Tue, Mar 3 - Sat, Mar 7
Multiple Airlines Logo
4:40 pm - 12:40 am
SFO
-
STN
24h 00m
2 stops
Multiple Airlines Logo
12:35 pm - 3:35 pm
STN
-
SFO
34h 00m
2 stops
$600Multiple Airlines
Thu, Mar 5 - Sun, Mar 15
Multiple Airlines Logo
4:40 pm - 11:20 pm
SFO
-
STN
22h 40m
2 stops
Multiple Airlines Logo
12:00 pm - 2:35 pm
STN
-
SFO
34h 35m
2 stops
$602Multiple Airlines
Thu, Feb 26 - Sun, Mar 1
Multiple Airlines Logo
3:40 pm - 8:30 pm
SFO
-
STN
21h 50m
2 stops
Multiple Airlines Logo
7:40 am - 9:22 pm
STN
-
SFO
20h 42m
2 stops
$603Multiple Airlines
Tue, Mar 10 - Tue, Mar 17
Multiple Airlines Logo
4:45 pm - 9:20 pm
SFO
-
STN
20h 35m
2 stops
Multiple Airlines Logo
4:25 pm - 2:40 pm
STN
-
SFO
30h 15m
2 stops
$604Multiple Airlines
Mon, Apr 13 - Mon, Apr 20
Multiple Airlines Logo
4:45 pm - 11:20 pm
SFO
-
STN
22h 35m
2 stops
Multiple Airlines Logo
4:15 pm - 2:40 pm
STN
-
SFO
30h 25m
2 stops
$606Multiple Airlines
Mon, Apr 27 - Thu, May 7
Multiple Airlines Logo
5:40 pm - 10:25 pm
SFO
-
STN
21h 45m
2 stops
Multiple Airlines Logo
11:35 am - 3:35 pm
STN
-
SFO
35h 00m
2 stops
$609Multiple Airlines
Tue, Mar 10 - Sun, Mar 15
Multiple Airlines Logo
8:25 am - 4:55 pm
SFO
-
STN
24h 30m
2 stops
Multiple Airlines Logo
8:55 pm - 4:30 pm
STN
-
SFO
27h 35m
2 stops
$614Multiple Airlines
Mon, Feb 23 - Wed, Mar 4
Multiple Airlines Logo
7:40 pm - 8:25 pm
SFO
-
STN
16h 45m
1 stop
Multiple Airlines Logo
10:00 pm - 12:45 pm
STN
-
SFO
46h 45m
2 stops
$616Multiple Airlines
Sun, Apr 19 - Sat, Apr 25
Multiple Airlines Logo
3:15 pm - 7:00 pm
SFO
-
STN
19h 45m
2 stops
Multiple Airlines Logo
5:35 pm - 1:15 pm
STN
-
SFO
27h 40m
2 stops
$618Multiple Airlines
Tue, Apr 7 - Thu, Apr 16

momondo Fare Finder

 
Customize your flight search to find flights from San Francisco to London Stansted Airport 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, momondo users made 832,500 searches. Data last updated February 12, 2026.
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

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

Tue 3/3

4:40 pm-8:15 pm

2 stops19h 35m

London Stansted

Sat 3/7

11:55 am-2:35 pm

2 stops34h 40m

$598

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

Thu 3/5

4:40 pm-12:40 am

2 stops24h 00m

London Stansted

Sun 3/15

12:35 pm-3:35 pm

2 stops34h 00m

$600

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

Thu 2/26

4:40 pm-11:20 pm

2 stops22h 40m

London Stansted

Sun 3/1

12:00 pm-2:35 pm

2 stops34h 35m

$602

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

Tue 3/10

3:40 pm-8:30 pm

2 stops21h 50m

London Stansted

Tue 3/17

7:40 am-9:22 pm

2 stops20h 42m

$603

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

Mon 4/13

4:45 pm-9:20 pm

2 stops20h 35m

London Stansted

Mon 4/20

4:25 pm-2:40 pm

2 stops30h 15m

$604

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

Mon 4/27

4:45 pm-11:20 pm

2 stops22h 35m

London Stansted

Thu 5/7

4:15 pm-2:40 pm

2 stops30h 25m

$606

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

Tue 3/10

5:40 pm-10:25 pm

2 stops21h 45m

London Stansted

Sun 3/15

11:35 am-3:35 pm

2 stops35h 00m

$609

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

Mon 2/23

8:25 am-4:55 pm

2 stops24h 30m

London Stansted

Wed 3/4

8:55 pm-4:30 pm

2 stops27h 35m

$614

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

Sun 4/19

7:40 pm-8:25 pm

1 stop16h 45m

London Stansted

Sat 4/25

10:00 pm-12:45 pm

2 stops46h 45m

$616

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

Tue 4/7

3:15 pm-7:00 pm

2 stops19h 45m

London Stansted

Thu 4/16

5:35 pm-1:15 pm

2 stops27h 40m

$618

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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

15h 15m

Direct flights

None
The fastest flight from San Francisco to London Stansted Airport takes 15h 15m
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.
Search flight deals

  • How far is San Francisco to London Stansted by plane?

    The distance between San Francisco and London Stansted is about 5340.7 mi. A reasonable flight in good conditions will take 15h 15m.

  • 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.

  • How do I get Price Alerts for flights from San Francisco to London Stansted Airport?

    Confirm your travel details to search for the latest offers for flights from San Francisco to London Stansted Airport. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

  • How can I save money on flights from San Francisco to London Stansted Airport with momondo?

    Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

  • How does momondo find its flight prices?

    momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Gatwick
Hounslow
Milton Keynes
Luton
Dover
Slough
Crawley
Hayes
Wembley
Dartford
Croydon
Brentwood
Guildford
Harrow
Watford
Cobham
Folkestone
Romford
Stansted
Richmond

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.

An easier way to manage your London Stansted Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
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