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Cheap flights from Southampton to San Francisco from $709

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Southampton to San Francisco departing on 10/17. 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 Southampton to San Francisco

Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
5:20 pm - 3:55 pm
SOU
-
SFO
30h 35m
1 stop
British Airways Logo
6:20 pm - 8:40 am
SFO
-
SOU
31h 20m
1 stop
$709British Airways
Sat, Oct 17 - Mon, Oct 26
British Airways Logo
9:20 am - 3:55 pm
SOU
-
SFO
14h 35m
1 stop
British Airways Logo
5:40 pm - 8:40 am
SFO
-
SOU
31h 00m
1 stop
$732British Airways
Wed, Sep 2 - Sun, Sep 6
British Airways Logo
9:20 am - 3:55 pm
SOU
-
SFO
14h 35m
1 stop
British Airways Logo
5:40 pm - 8:40 am
SFO
-
SOU
31h 00m
1 stop
$733British Airways
Wed, Sep 2 - Sun, Sep 6
British Airways Logo
9:20 am - 3:55 pm
SOU
-
SFO
14h 35m
1 stop
British Airways Logo
4:35 pm - 8:25 am
SFO
-
SOU
31h 50m
2 stops
$747British Airways
Wed, Sep 2 - Sun, Sep 6
British Airways Logo
9:20 am - 3:55 pm
SOU
-
SFO
14h 35m
1 stop
British Airways Logo
4:35 pm - 8:25 am
SFO
-
SOU
31h 50m
2 stops
$748British Airways
Wed, Sep 2 - Sun, Sep 6
KLM Logo
6:05 pm - 11:45 am
SOU
-
SFO
25h 40m
1 stop
KLM Logo
1:45 pm - 8:45 am
SFO
-
SOU
35h 00m
1 stop
$758KLM
Wed, Jul 8 - Tue, Jul 14
KLM Logo
6:05 pm - 11:45 am
SOU
-
SFO
25h 40m
1 stop
KLM Logo
7:00 am - 8:45 am
SFO
-
SOU
17h 45m
2 stops
$762KLM
Wed, Jul 8 - Tue, Jul 14
KLM Logo
6:05 pm - 11:45 am
SOU
-
SFO
25h 40m
1 stop
KLM Logo
1:45 pm - 8:45 am
SFO
-
SOU
35h 00m
1 stop
$765KLM
Wed, Jul 8 - Tue, Jul 14
KLM Logo
6:05 pm - 11:45 am
SOU
-
SFO
25h 40m
1 stop
KLM Logo
7:00 am - 8:45 am
SFO
-
SOU
17h 45m
2 stops
$769KLM
Wed, Jul 8 - Tue, Jul 14
KLM Logo
9:15 am - 8:57 pm
SOU
-
SFO
19h 42m
2 stops
KLM Logo
7:00 am - 8:45 am
SFO
-
SOU
17h 45m
2 stops
$770KLM
Wed, Jul 8 - Tue, Jul 14

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British Airways flights from Southampton to San Francisco

Our best British Airways deals on Southampton to San Francisco flight tickets
British Airways
Oct 17
SOU5:20 pmSouthampton Eastleigh
30h 35m
1 stop
SFO3:55 pmSan Francisco
Oct 26
SFO6:20 pmSan Francisco
31h 20m
1 stop
SOU8:40 amSouthampton Eastleigh
$709
British Airways
Sep 2
SOU9:20 amSouthampton Eastleigh
14h 35m
1 stop
SFO3:55 pmSan Francisco
Sep 6
SFO5:40 pmSan Francisco
31h 00m
1 stop
SOU8:40 amSouthampton Eastleigh
$732
British Airways
Sep 2
SOU9:20 amSouthampton Eastleigh
14h 35m
1 stop
SFO3:55 pmSan Francisco
Sep 6
SFO5:40 pmSan Francisco
31h 00m
1 stop
SOU8:40 amSouthampton Eastleigh
$733

KLM flights from Southampton to San Francisco

Our best KLM deals on Southampton to San Francisco flight tickets
KLM
Jul 8
SOU6:05 pmSouthampton Eastleigh
25h 40m
1 stop
SFO11:45 amSan Francisco
Jul 14
SFO1:45 pmSan Francisco
35h 00m
1 stop
SOU8:45 amSouthampton Eastleigh
$758
KLM
Jul 8
SOU6:05 pmSouthampton Eastleigh
25h 40m
1 stop
SFO11:45 amSan Francisco
Jul 14
SFO7:00 amSan Francisco
17h 45m
2 stops
SOU8:45 amSouthampton Eastleigh
$762
KLM
Jul 8
SOU6:05 pmSouthampton Eastleigh
25h 40m
1 stop
SFO11:45 amSan Francisco
Jul 14
SFO1:45 pmSan Francisco
35h 00m
1 stop
SOU8:45 amSouthampton Eastleigh
$765

momondo Fare Finder

 
Customize your flight search to find flights from Southampton to San Francisco 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 23, 2026.
Use the filters below to find and compare flights from Southampton to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SouthamptonSan Francisco

SOU - SFO

SOUSFO

Southampton Eastleigh

Sat 10/17

5:20 pm-3:55 pm

1 stop30h 35m

San Francisco

Mon 10/26

6:20 pm-8:40 am

1 stop31h 20m

$709

SouthamptonSan Francisco

SOU - SFO

SOUSFO

Southampton Eastleigh

Wed 9/2

9:20 am-3:55 pm

1 stop14h 35m

San Francisco

Sun 9/6

5:40 pm-8:40 am

1 stop31h 00m

$732

SouthamptonSan Francisco

SOU - SFO

SOUSFO

Southampton Eastleigh

Wed 9/2

9:20 am-3:55 pm

1 stop14h 35m

San Francisco

Sun 9/6

5:40 pm-8:40 am

1 stop31h 00m

$733

SouthamptonSan Francisco

SOU - SFO

SOUSFO

Southampton Eastleigh

Wed 9/2

9:20 am-3:55 pm

1 stop14h 35m

San Francisco

Sun 9/6

4:35 pm-8:25 am

2 stops31h 50m

$747

SouthamptonSan Francisco

SOU - SFO

SOUSFO

Southampton Eastleigh

Wed 9/2

9:20 am-3:55 pm

1 stop14h 35m

San Francisco

Sun 9/6

4:35 pm-8:25 am

2 stops31h 50m

$748

SouthamptonSan Francisco

SOU - SFO

SOUSFO

Southampton Eastleigh

Wed 7/8

6:05 pm-11:45 am

1 stop25h 40m

San Francisco

Tue 7/14

1:45 pm-8:45 am

1 stop35h 00m

$758

SouthamptonSan Francisco

SOU - SFO

SOUSFO

Southampton Eastleigh

Wed 7/8

6:05 pm-11:45 am

1 stop25h 40m

San Francisco

Tue 7/14

7:00 am-8:45 am

2 stops17h 45m

$762

SouthamptonSan Francisco

SOU - SFO

SOUSFO

Southampton Eastleigh

Wed 7/8

6:05 pm-11:45 am

1 stop25h 40m

San Francisco

Tue 7/14

1:45 pm-8:45 am

1 stop35h 00m

$765

SouthamptonSan Francisco

SOU - SFO

SOUSFO

Southampton Eastleigh

Wed 7/8

6:05 pm-11:45 am

1 stop25h 40m

San Francisco

Tue 7/14

7:00 am-8:45 am

2 stops17h 45m

$769
Quickest round-trip

SouthamptonSan Francisco

SOU - SFO

SOUSFO

Southampton Eastleigh

Wed 7/8

9:15 am-8:57 pm

2 stops19h 42m

San Francisco

Tue 7/14

7:00 am-8:45 am

2 stops17h 45m

$770

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 San Francisco from

How to get the cheapest flight ticket from Southampton to San Francisco

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 day to depart on your flight to San Francisco?

The cheapest day to depart from Southampton to San Francisco is on a Thursday when prices can be found for as low as $755. The most expensive day to fly to San Francisco is Sunday, with ticket prices averaging around $924.

What is the cheapest time of day to depart on your flight to San Francisco?

Our data shows that the cheapest Southampton to San Francisco flights are usually those with departure times at noon. Our users have found flights to San Francisco at noon for as low as $754. Flights in the morning are often more expensive with an average ticket price of $812.

When to book flights from Southampton to San Francisco

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

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

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

Fastest flight time

14h 30m

Direct flights

None
The fastest flight from Southampton to San Francisco takes 14h 30m
There are no direct flights from Southampton to San Francisco. There are no popular flight routes from Southampton to San Francisco.
Search flight deals

Frequently asked questions about flying from Southampton to San Francisco

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

    A flight from Southampton Eastleigh to San Francisco will travel around 5341.3 mi. A reasonable flight in good conditions will take 14h 30m.

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

    Prices for flights from Southampton Eastleigh Airport to San Francisco Airport are refreshed on a daily basis.

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

  • What documentation or ID do you need to fly to San Francisco Airport?

    The travel and health documents required for your trip to San Francisco Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Francisco Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Santa Cruz
Carmel-by-the-Sea
Modesto
Bodega Bay
Sonoma
Fremont
Hayward
Roseville
South San Francisco
Walnut Creek
Berkeley
Santa Clara
Vallejo
Salinas
Sunnyvale
Big Sur
Daly City
Burlingame
Milpitas
Turlock

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Southampton to San Francisco. Millions of users trust and use momondo every year so you are in good hands.

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

All flight searches from Southampton to San Francisco on momondo can be filtered to show those which offer flexible booking policies.

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

Once all potential Southampton to San Francisco flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Of course. momondo tracks the price of Southampton to San Francisco flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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