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Cheap flights from San Francisco to London from $447

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 9/30. 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
4:05 pm - 7:20 pm
SFO
-
SEN
19h 15m
1 stop
Multiple Airlines Logo
7:50 pm - 8:50 pm
SEN
-
SFO
33h 00m
1 stop
$998Multiple Airlines
Sat, Aug 15 - Sun, Aug 23
Multiple Airlines Logo
4:05 pm - 7:20 pm
SFO
-
SEN
19h 15m
1 stop
Multiple Airlines Logo
7:50 pm - 3:50 pm
SEN
-
SFO
28h 00m
2 stops
$1,005Multiple Airlines
Sat, Aug 15 - Sun, Aug 23
Multiple Airlines Logo
8:10 am - 11:20 am
SFO
-
SEN
19h 10m
2 stops
Multiple Airlines Logo
4:35 pm - 12:40 pm
SEN
-
SFO
28h 05m
2 stops
$1,119Multiple Airlines
Mon, Aug 3 - Thu, Aug 13
Multiple Airlines Logo
5:40 pm - 6:50 pm
SFO
-
SEN
17h 10m
2 stops
Multiple Airlines Logo
7:35 am - 10:20 pm
SEN
-
SFO
22h 45m
3 stops
$1,132Multiple Airlines
Sun, Aug 16 - Sun, Aug 23
Multiple Airlines Logo
4:35 pm - 9:50 pm
SFO
-
SEN
21h 15m
2 stops
Multiple Airlines Logo
3:40 pm - 1:50 pm
SEN
-
SFO
30h 10m
2 stops
$1,187Multiple Airlines
Wed, Jul 15 - Wed, Jul 22
Multiple Airlines Logo
4:35 pm - 9:50 pm
SFO
-
SEN
21h 15m
2 stops
Multiple Airlines Logo
7:05 am - 1:50 pm
SEN
-
SFO
38h 45m
3 stops
$1,194Multiple Airlines
Wed, Jul 15 - Wed, Jul 22
Multiple Airlines Logo
4:35 pm - 9:50 pm
SFO
-
SEN
21h 15m
2 stops
Multiple Airlines Logo
4:50 pm - 9:55 pm
SEN
-
SFO
37h 05m
3 stops
$1,232Multiple Airlines
Wed, Jul 15 - Sat, Aug 15
Multiple Airlines Logo
2:40 pm - 7:10 pm
SFO
-
SEN
20h 30m
2 stops
Multiple Airlines Logo
7:35 am - 8:51 pm
SEN
-
SFO
21h 16m
2 stops
$1,314Multiple Airlines
Thu, Aug 6 - Sun, Aug 16
Multiple Airlines Logo
5:35 pm - 7:10 pm
SFO
-
SEN
17h 35m
2 stops
Multiple Airlines Logo
11:10 am - 8:50 pm
SEN
-
SFO
17h 40m
1 stop
$1,720Multiple Airlines
Thu, Jul 30 - Mon, Aug 10
Multiple Airlines Logo
8:10 am - 10:45 am
SFO
-
SEN
18h 35m
2 stops
Multiple Airlines Logo
7:45 am - 9:55 pm
SEN
-
SFO
22h 10m
2 stops
$1,763Multiple Airlines
Thu, Jul 23 - Mon, Jul 27

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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 June 28, 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 - SEN

SFOSEN

San Francisco

Sat 8/15

4:05 pm-7:20 pm

1 stop19h 15m

London Southend

Sun 8/23

7:50 pm-8:50 pm

1 stop33h 00m

$998

San FranciscoLondon

SFO - SEN

SFOSEN

San Francisco

Sat 8/15

4:05 pm-7:20 pm

1 stop19h 15m

London Southend

Sun 8/23

7:50 pm-3:50 pm

2 stops28h 00m

$1,005

San FranciscoLondon

SFO - SEN

SFOSEN

San Francisco

Mon 8/3

8:10 am-11:20 am

2 stops19h 10m

London Southend

Thu 8/13

4:35 pm-12:40 pm

2 stops28h 05m

$1,119

San FranciscoLondon

SFO - SEN

SFOSEN

San Francisco

Sun 8/16

5:40 pm-6:50 pm

2 stops17h 10m

London Southend

Sun 8/23

7:35 am-10:20 pm

3 stops22h 45m

$1,132

San FranciscoLondon

SFO - SEN

SFOSEN

San Francisco

Wed 7/15

4:35 pm-9:50 pm

2 stops21h 15m

London Southend

Wed 7/22

3:40 pm-1:50 pm

2 stops30h 10m

$1,187

San FranciscoLondon

SFO - SEN

SFOSEN

San Francisco

Wed 7/15

4:35 pm-9:50 pm

2 stops21h 15m

London Southend

Wed 7/22

7:05 am-1:50 pm

3 stops38h 45m

$1,194

San FranciscoLondon

SFO - SEN

SFOSEN

San Francisco

Wed 7/15

4:35 pm-9:50 pm

2 stops21h 15m

London Southend

Sat 8/15

4:50 pm-9:55 pm

3 stops37h 05m

$1,232

San FranciscoLondon

SFO - SEN

SFOSEN

San Francisco

Thu 8/6

2:40 pm-7:10 pm

2 stops20h 30m

London Southend

Sun 8/16

7:35 am-8:51 pm

2 stops21h 16m

$1,314
Quickest round-trip

San FranciscoLondon

SFO - SEN

SFOSEN

San Francisco

Thu 7/30

5:35 pm-7:10 pm

2 stops17h 35m

London Southend

Mon 8/10

11:10 am-8:50 pm

1 stop17h 40m

$1,720

San FranciscoLondon

SFO - SEN

SFOSEN

San Francisco

Thu 7/23

8:10 am-10:45 am

2 stops18h 35m

London Southend

Mon 7/27

7:45 am-9:55 pm

2 stops22h 10m

$1,763

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 40m

Direct flights

None
The fastest flight from San Francisco to London Southend Airport takes 17h 40m
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.
Search flight deals

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 40m, 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
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?

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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