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Cheap flights from San Francisco to London from $394

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 9/8. 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
1 adult, Economy, 0 bags

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
4:30 pm - 8:55 pm
SFO
-
STN
20h 25m
2 stops
Multiple Airlines Logo
5:20 pm - 2:30 pm
STN
-
SFO
29h 10m
2 stops
$696Multiple Airlines
Tue, Sep 8 - Tue, Sep 15
Multiple Airlines Logo
4:30 pm - 9:30 pm
SFO
-
STN
21h 00m
2 stops
Multiple Airlines Logo
6:20 pm - 2:30 pm
STN
-
SFO
28h 10m
2 stops
$701Multiple Airlines
Wed, Aug 12 - Wed, Aug 19
Multiple Airlines Logo
4:30 pm - 7:30 pm
SFO
-
STN
19h 00m
2 stops
Multiple Airlines Logo
5:40 pm - 2:30 pm
STN
-
SFO
28h 50m
2 stops
$711Multiple Airlines
Fri, Sep 11 - Mon, Sep 21
Multiple Airlines Logo
4:30 pm - 8:55 pm
SFO
-
STN
20h 25m
2 stops
Multiple Airlines Logo
6:45 pm - 2:30 pm
STN
-
SFO
27h 45m
2 stops
$717Multiple Airlines
Tue, Sep 8 - Tue, Sep 22
Multiple Airlines Logo
4:30 pm - 11:05 pm
SFO
-
STN
22h 35m
2 stops
Multiple Airlines Logo
7:05 pm - 2:30 pm
STN
-
SFO
27h 25m
2 stops
$724Multiple Airlines
Sun, Aug 23 - Sat, Aug 29
Multiple Airlines Logo
4:30 pm - 9:30 pm
SFO
-
STN
21h 00m
2 stops
Multiple Airlines Logo
6:45 pm - 2:30 pm
STN
-
SFO
27h 45m
2 stops
$732Multiple Airlines
Wed, Aug 26 - Tue, Sep 1
Multiple Airlines Logo
4:30 pm - 7:20 pm
SFO
-
STN
18h 50m
2 stops
Multiple Airlines Logo
6:20 pm - 2:30 pm
STN
-
SFO
28h 10m
2 stops
$733Multiple Airlines
Wed, Aug 12 - Wed, Aug 19
Multiple Airlines Logo
4:30 pm - 12:20 am
SFO
-
STN
23h 50m
2 stops
Multiple Airlines Logo
8:50 pm - 2:30 pm
STN
-
SFO
25h 40m
2 stops
$735Multiple Airlines
Fri, Sep 11 - Mon, Sep 14
Multiple Airlines Logo
4:30 pm - 12:45 am
SFO
-
STN
24h 15m
2 stops
Multiple Airlines Logo
9:45 pm - 2:30 pm
STN
-
SFO
24h 45m
2 stops
$743Multiple Airlines
Wed, Aug 12 - Tue, Aug 18
Multiple Airlines Logo
4:30 pm - 11:15 pm
SFO
-
STN
22h 45m
2 stops
Multiple Airlines Logo
8:05 pm - 2:30 pm
STN
-
SFO
26h 25m
2 stops
$746Multiple Airlines
Thu, Sep 10 - Sun, Sep 13

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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 July 17, 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

Cheapest round-trip

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

Tue 9/8

4:30 pm-8:55 pm

2 stops20h 25m

London Stansted

Tue 9/15

5:20 pm-2:30 pm

2 stops29h 10m

$696

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

Wed 8/12

4:30 pm-9:30 pm

2 stops21h 00m

London Stansted

Wed 8/19

6:20 pm-2:30 pm

2 stops28h 10m

$701

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

Fri 9/11

4:30 pm-7:30 pm

2 stops19h 00m

London Stansted

Mon 9/21

5:40 pm-2:30 pm

2 stops28h 50m

$711

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

Tue 9/8

4:30 pm-8:55 pm

2 stops20h 25m

London Stansted

Tue 9/22

6:45 pm-2:30 pm

2 stops27h 45m

$717

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

Sun 8/23

4:30 pm-11:05 pm

2 stops22h 35m

London Stansted

Sat 8/29

7:05 pm-2:30 pm

2 stops27h 25m

$724

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

Wed 8/26

4:30 pm-9:30 pm

2 stops21h 00m

London Stansted

Tue 9/1

6:45 pm-2:30 pm

2 stops27h 45m

$732
Quickest round-trip

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

Wed 8/12

4:30 pm-7:20 pm

2 stops18h 50m

London Stansted

Wed 8/19

6:20 pm-2:30 pm

2 stops28h 10m

$733

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

Fri 9/11

4:30 pm-12:20 am

2 stops23h 50m

London Stansted

Mon 9/14

8:50 pm-2:30 pm

2 stops25h 40m

$735

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

Wed 8/12

4:30 pm-12:45 am

2 stops24h 15m

London Stansted

Tue 8/18

9:45 pm-2:30 pm

2 stops24h 45m

$743

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

Thu 9/10

4:30 pm-11:15 pm

2 stops22h 45m

London Stansted

Sun 9/13

8:05 pm-2:30 pm

2 stops26h 25m

$746

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to London from

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

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 05m

Direct flights

None
The fastest flight from San Francisco to London Stansted Airport takes 14h 05m
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 05m.

  • 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.

Traveling to a place near London?

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

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

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