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Cheap flights from San Francisco to London from $382

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 10/16. 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
8:25 am - 10:20 pmSFO  San Francisco-SEN London Southend
29h 55m2 stops Montreal Pierre Elliott Trudeau Intl Barcelona-El Prat
Multiple Airlines Logo
3:30 pm - 2:45 pmSEN  London Southend-SFO San Francisco
31h 15m2 stops Barcelona-El Prat Lisbon Humberto Delgado
$902Multiple Airlines
Wed, Dec 2 - Tue, Dec 8
Multiple Airlines Logo
8:10 am - 10:30 amSFO  San Francisco-SEN London Southend
18h 20m2 stops Montreal Pierre Elliott Trudeau Intl Paris Charles de Gaulle
Multiple Airlines Logo
11:10 am - 12:40 pmSEN  London Southend-SFO San Francisco
33h 30m2 stops Paris Charles de Gaulle Frankfurt am Main
$976Multiple Airlines
Sun, Sep 27 - Mon, Oct 5
Multiple Airlines Logo
1:00 pm - 5:15 pmSFO  San Francisco-SEN London Southend
20h 15m2 stops Calgary Paris Charles de Gaulle
Multiple Airlines Logo
7:00 am - 3:35 pmSEN  London Southend-SFO San Francisco
40h 35m3 stops Las Palmas de Gran Canaria Paris Charles de Gaulle Dublin
$1,062Multiple Airlines
Thu, Nov 19 - Sun, Nov 29
Multiple Airlines Logo
8:10 am - 11:20 amSFO  San Francisco-SEN London Southend
19h 10m2 stops Montreal Pierre Elliott Trudeau Intl Barcelona-El Prat
Multiple Airlines Logo
4:50 pm - 12:40 pmSEN  London Southend-SFO San Francisco
27h 50m2 stops Barcelona-El Prat Frankfurt am Main
$1,090Multiple Airlines
Mon, Sep 14 - Sat, Sep 19
Multiple Airlines Logo
11:10 am - 2:00 pmSFO  San Francisco-SEN London Southend
18h 50m2 stops Montreal Pierre Elliott Trudeau Intl Geneva Geneve-Cointrin
Multiple Airlines Logo
7:50 am - 8:47 pmSEN  London Southend-SFO San Francisco
20h 57m2 stops Geneva Geneve-Cointrin Montreal Pierre Elliott Trudeau Intl
$1,115Multiple Airlines
Thu, Oct 1 - Mon, Oct 5
Multiple Airlines Logo
2:45 pm - 4:40 pmSFO  San Francisco-SEN London Southend
17h 55m2 stops Frankfurt am Main Amsterdam Schiphol
Multiple Airlines Logo
7:15 am - 9:30 pmSEN  London Southend-SFO San Francisco
22h 15m2 stops Amsterdam Schiphol Toronto Pearson Intl
$1,118Multiple Airlines
Wed, Nov 18 - Sat, Nov 28
Multiple Airlines Logo
8:10 am - 8:10 pmSFO  San Francisco-SEN London Southend
28h 00m3 stops Montreal Pierre Elliott Trudeau Intl Frankfurt am Main Palma de Mallorca Son Sant Joan
Multiple Airlines Logo
8:40 pm - 4:15 pmSEN  London Southend-SFO San Francisco
27h 35m2 stops Palma de Mallorca Son Sant Joan Zurich
$1,128Multiple Airlines
Thu, Sep 10 - Thu, Sep 17
Multiple Airlines Logo
5:40 pm - 7:35 pmSFO  San Francisco-SEN London Southend
17h 55m2 stops Dublin Amsterdam Schiphol
Multiple Airlines Logo
11:20 am - 8:50 pmSEN  London Southend-SFO San Francisco
17h 30m1 stop Paris Charles de Gaulle
$1,136Multiple Airlines
Sun, Sep 20 - Fri, Sep 25
Multiple Airlines Logo
8:10 am - 7:05 pmSFO  San Francisco-SEN London Southend
26h 55m2 stops Montreal Pierre Elliott Trudeau Intl Palma de Mallorca Son Sant Joan
Multiple Airlines Logo
8:40 pm - 4:15 pmSEN  London Southend-SFO San Francisco
27h 35m2 stops Palma de Mallorca Son Sant Joan Zurich
$1,199Multiple Airlines
Fri, Sep 11 - Fri, Sep 18
Multiple Airlines Logo
11:35 am - 1:00 pmSFO  San Francisco-SEN London Southend
17h 25m2 stops Toronto Pearson Intl Paris Charles de Gaulle
Multiple Airlines Logo
7:25 am - 10:59 pmSEN  London Southend-SFO San Francisco
23h 34m3 stops Paris Charles de Gaulle Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl
$1,265Multiple Airlines
Wed, Sep 9 - Sun, Sep 13

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momondo Fare Finder

 
Customize your flight search to find flights from San Francisco to London Southend 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 August 13, 2026.
Use the filters below to find and compare flights from San Francisco to London Southend Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San FranciscoLondon

SFO San Francisco - SEN London Southend

SFOSEN

San Francisco

Wed 12/2

8:25 am-10:20 pm

2 stops29h 55m

London Southend

Tue 12/8

3:30 pm-2:45 pm

2 stops31h 15m

$902

San FranciscoLondon

SFO San Francisco - SEN London Southend

SFOSEN

San Francisco

Sun 9/27

8:10 am-10:30 am

2 stops18h 20m

London Southend

Mon 10/5

11:10 am-12:40 pm

2 stops33h 30m

$976

San FranciscoLondon

SFO San Francisco - SEN London Southend

SFOSEN

San Francisco

Thu 11/19

1:00 pm-5:15 pm

2 stops20h 15m

London Southend

Sun 11/29

7:00 am-3:35 pm

3 stops40h 35m

$1,062

San FranciscoLondon

SFO San Francisco - SEN London Southend

SFOSEN

San Francisco

Mon 9/14

8:10 am-11:20 am

2 stops19h 10m

London Southend

Sat 9/19

4:50 pm-12:40 pm

2 stops27h 50m

$1,090

San FranciscoLondon

SFO San Francisco - SEN London Southend

SFOSEN

San Francisco

Thu 10/1

11:10 am-2:00 pm

2 stops18h 50m

London Southend

Mon 10/5

7:50 am-8:47 pm

2 stops20h 57m

$1,115

San FranciscoLondon

SFO San Francisco - SEN London Southend

SFOSEN

San Francisco

Wed 11/18

2:45 pm-4:40 pm

2 stops17h 55m

London Southend

Sat 11/28

7:15 am-9:30 pm

2 stops22h 15m

$1,118

San FranciscoLondon

SFO San Francisco - SEN London Southend

SFOSEN

San Francisco

Thu 9/10

8:10 am-8:10 pm

3 stops28h 00m

London Southend

Thu 9/17

8:40 pm-4:15 pm

2 stops27h 35m

$1,128
Quickest round-trip

San FranciscoLondon

SFO San Francisco - SEN London Southend

SFOSEN

San Francisco

Sun 9/20

5:40 pm-7:35 pm

2 stops17h 55m

London Southend

Fri 9/25

11:20 am-8:50 pm

1 stop17h 30m

$1,136

San FranciscoLondon

SFO San Francisco - SEN London Southend

SFOSEN

San Francisco

Fri 9/11

8:10 am-7:05 pm

2 stops26h 55m

London Southend

Fri 9/18

8:40 pm-4:15 pm

2 stops27h 35m

$1,199

San FranciscoLondon

SFO San Francisco - SEN London Southend

SFOSEN

San Francisco

Wed 9/9

11:35 am-1:00 pm

2 stops17h 25m

London Southend

Sun 9/13

7:25 am-10:59 pm

3 stops23h 34m

$1,265

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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When to book flights from San Francisco to London Southend Airport

Are you open to changing your travel dates? Check out the ideal times to fly from San Francisco to London Southend 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 Southend Airport (SFO to SEN) flight deals and tips

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

Fastest flight time

17h 16m

Direct flights

None
The fastest flight from San Francisco to London Southend Airport takes 17h 16m
There are no direct flights from San Francisco to London Southend Airport. There are no popular flight routes from San Francisco to London Southend Airport.
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Frequently asked questions about flying from San Francisco to London Southend Airport

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

    The straight-line distance from San Francisco to London Southend is 5370.3 mi. Flights usually cover this in 17h 16m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from San Francisco Airport to London Southend Airport were last updated today.

  • How old do you have to be to fly from San Francisco Airport to London Southend 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 Southend Airport.

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

    The necessary travel and health documents for your London Southend 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.

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

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

    Search flight deals from San Francisco to London Southend Airport. While viewing offers you’ll have the option to create a Price Alert.

  • How can I save money on flights from San Francisco to London Southend 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
Hounslow
Gatwick
Milton Keynes
Luton
Hayes
Wembley
Croydon
Dover
Stansted
Richmond
Kingston upon Thames
Harrow
Watford
Cobham
Slough
Uxbridge
Worthing
Romford
Ilford
Bedford

Why use momondo?

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

It is quick and easy to find San Francisco to London flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to London that suits you.

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

momondo does allow users to show only those flights to London from San Francisco which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from San Francisco 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 San Francisco.

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

Yes momondo offers price alerts on flights to London from San Francisco. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your London Southend 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.
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