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Cheap flights from San Francisco to London from $634

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 1/16. 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
0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
1:55 pm - 5:05 pm
SFO
-
SOU
19h 10m1 stop
Delta Logo
8:50 am - 11:50 am
SOU
-
SFO
35h 00m1 stop
$769Delta
Wed, Feb 18 - Mon, Feb 23
Delta Logo
1:55 pm - 8:50 am
SFO
-
SOU
34h 55m1 stop
Delta Logo
9:25 am - 11:50 am
SOU
-
SFO
34h 25m1 stop
$770Delta
Sun, Jan 11 - Mon, Jan 26
Delta Logo
12:40 am - 8:50 am
SFO
-
SOU
24h 10m2 stops
Delta Logo
9:25 am - 11:50 am
SOU
-
SFO
34h 25m1 stop
$774Delta
Sun, Jan 18 - Wed, Jan 28
Delta Logo
7:00 am - 8:50 am
SFO
-
SOU
17h 50m2 stops
Delta Logo
5:35 pm - 6:38 pm
SOU
-
SFO
33h 03m2 stops
$776Delta
Sun, Jan 11 - Mon, Jan 26
Delta Logo
1:55 pm - 8:20 am
SFO
-
SOU
34h 25m1 stop
Delta Logo
8:50 am - 11:00 pm
SOU
-
SFO
21h 10m2 stops
$780Delta
Sun, Mar 1 - Fri, Mar 13
Delta Logo
7:00 am - 8:20 am
SFO
-
SOU
17h 20m2 stops
Delta Logo
8:50 am - 11:00 pm
SOU
-
SFO
21h 10m2 stops
$784Delta
Wed, Mar 4 - Fri, Mar 13
Delta Logo
1:05 pm - 4:50 pm
SFO
-
SOU
19h 45m2 stops
Delta Logo
5:20 pm - 11:45 am
SOU
-
SFO
26h 25m1 stop
$789Delta
Mon, Apr 6 - Mon, Apr 13
Delta Logo
5:40 am - 4:50 pm
SFO
-
SOU
27h 10m2 stops
Delta Logo
5:20 pm - 3:59 pm
SOU
-
SFO
30h 39m2 stops
$798Delta
Wed, Apr 8 - Mon, Apr 13
Delta Logo
1:55 pm - 5:05 pm
SFO
-
SOU
19h 10m1 stop
Delta Logo
5:45 pm - 11:50 am
SOU
-
SFO
26h 05m1 stop
$799Delta
Wed, Feb 18 - Sun, Feb 22
Delta Logo
1:55 pm - 5:05 pm
SFO
-
SOU
19h 10m1 stop
Delta Logo
5:35 pm - 11:50 am
SOU
-
SFO
26h 15m1 stop
$800Delta
Thu, Jan 22 - Thu, Jan 29

Delta flights from San Francisco to Southampton

Our best Delta deals on San Francisco to Southampton flight tickets
Delta
Feb 18
SFO1:55 pmSan Francisco
19h 10m
1 stop
SOU5:05 pmSouthampton Eastleigh
Feb 23
SOU8:50 amSouthampton Eastleigh
35h 00m
1 stop
SFO11:50 amSan Francisco
$769
Find similar
Delta
Jan 11
SFO1:55 pmSan Francisco
34h 55m
1 stop
SOU8:50 amSouthampton Eastleigh
Jan 26
SOU9:25 amSouthampton Eastleigh
34h 25m
1 stop
SFO11:50 amSan Francisco
$770
Find similar
Delta
Jan 7
SFO5:55 amSan Francisco
27h 10m
2 stops
SOU5:05 pmSouthampton Eastleigh
Jan 20
SOU5:35 pmSouthampton Eastleigh
26h 15m
1 stop
SFO11:50 amSan Francisco
$774
Find similar

Aer Lingus flights from San Francisco to Southampton

Our best Aer Lingus deals on San Francisco to Southampton flight tickets
Aer Lingus
Feb 13
SFO5:20 pmSan Francisco
31h 25m
1 stop
SOU8:45 amSouthampton Eastleigh
Feb 20
SOU8:10 pmSouthampton Eastleigh
27h 25m
1 stop
SFO3:35 pmSan Francisco
$1,016
Find similar
Aer Lingus
May 27
SFO5:35 pmSan Francisco
17h 55m
1 stop
SOU7:30 pmSouthampton Eastleigh
Jun 13
SOU9:10 amSouthampton Eastleigh
14h 40m
1 stop
SFO3:50 pmSan Francisco
$1,236
Find similar
Aer Lingus
May 27
SFO6:15 amSan Francisco
29h 15m
2 stops
SOU7:30 pmSouthampton Eastleigh
Jun 13
SOU9:10 amSouthampton Eastleigh
14h 35m
1 stop
SFO3:45 pmSan Francisco
$1,241
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from San Francisco to Southampton 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 December 31, 2025.
Use the filters below to find and compare flights from San Francisco to Southampton that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Wed 2/18

1:55 pm-5:05 pm

1 stop19h 10m

Southampton Eastleigh

Mon 2/23

8:50 am-11:50 am

1 stop35h 00m

$769

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Sun 1/11

1:55 pm-8:50 am

1 stop34h 55m

Southampton Eastleigh

Mon 1/26

9:25 am-11:50 am

1 stop34h 25m

$770

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Sun 1/18

12:40 am-8:50 am

2 stops24h 10m

Southampton Eastleigh

Wed 1/28

9:25 am-11:50 am

1 stop34h 25m

$774

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Sun 1/11

7:00 am-8:50 am

2 stops17h 50m

Southampton Eastleigh

Mon 1/26

5:35 pm-6:38 pm

2 stops33h 03m

$776

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Sun 3/1

1:55 pm-8:20 am

1 stop34h 25m

Southampton Eastleigh

Fri 3/13

8:50 am-11:00 pm

2 stops21h 10m

$780

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Wed 3/4

7:00 am-8:20 am

2 stops17h 20m

Southampton Eastleigh

Fri 3/13

8:50 am-11:00 pm

2 stops21h 10m

$784

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Mon 4/6

1:05 pm-4:50 pm

2 stops19h 45m

Southampton Eastleigh

Mon 4/13

5:20 pm-11:45 am

1 stop26h 25m

$789

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Wed 4/8

5:40 am-4:50 pm

2 stops27h 10m

Southampton Eastleigh

Mon 4/13

5:20 pm-3:59 pm

2 stops30h 39m

$798

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Wed 2/18

1:55 pm-5:05 pm

1 stop19h 10m

Southampton Eastleigh

Sun 2/22

5:45 pm-11:50 am

1 stop26h 05m

$799

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Thu 1/22

1:55 pm-5:05 pm

1 stop19h 10m

Southampton Eastleigh

Thu 1/29

5:35 pm-11:50 am

1 stop26h 15m

$800

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 11 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 Southampton

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

Can stopping save me money on San Francisco to Southampton flights?

You could potentially save up to 25% on your flight if you consider stops on a San Francisco to Southampton flight.

When to book flights from San Francisco to Southampton

Are you open to changing your travel dates? Check out the ideal times to fly from San Francisco to Southampton according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap San Francisco to Southampton (SFO to SOU) flight deals and tips

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

Fastest flight time

14h 50m

Direct flights

None
The fastest flight from San Francisco to Southampton takes 14h 50m
There are no direct flights from San Francisco to Southampton. There are no popular flight routes from San Francisco to Southampton.
Search flight deals

  • How far is San Francisco to Southampton Eastleigh by plane?

    There are 5341.1 mi between San Francisco and Southampton Eastleigh. By plane, this route typically takes 14h 50m.

  • When did momondo last update prices for flights from San Francisco Airport to Southampton Eastleigh Airport?

    Prices for flights from San Francisco Airport to Southampton Eastleigh Airport were last updated today.

  • How old do you have to be to fly from San Francisco Airport to Southampton Eastleigh 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 Southampton Eastleigh Airport.

  • What documentation or ID do you need to fly to Southampton Eastleigh Airport?

    The travel and health documents you'll need for your trip to Southampton Eastleigh 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 Southampton Eastleigh 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
Portsmouth

Why use momondo?

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

It is quick and easy to find San Francisco to Southampton 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 Southampton that suits you.

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

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

How can momondo help me find flights from San Francisco to Southampton?

momondo helps you find the best flight between San Francisco and Southampton by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Of course. momondo tracks the price of San Francisco to Southampton 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 Southampton 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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