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Cheap flights from Southampton to San Francisco from $586

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Southampton to San Francisco departing on 10/25. 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.
Aer Lingus Logo
8:00 pm - 4:20 pmSOU  Southampton Eastleigh-SFO San Francisco
28h 20m2 stops Dublin Madrid Barajas
Aer Lingus Logo
5:40 pm - 4:50 pmSFO  San Francisco-SOU Southampton Eastleigh
15h 10m1 stop Dublin
$759Aer Lingus
Wed, Sep 2 - Tue, Sep 8
Aer Lingus Logo
9:20 am - 3:55 pmSOU  Southampton Eastleigh-SFO San Francisco
14h 35m1 stop Dublin
Aer Lingus Logo
5:40 pm - 4:50 pmSFO  San Francisco-SOU Southampton Eastleigh
15h 10m1 stop Dublin
$762Aer Lingus
Wed, Sep 2 - Tue, Sep 8
Aer Lingus Logo
9:20 am - 3:55 pmSOU  Southampton Eastleigh-SFO San Francisco
14h 35m1 stop Dublin
Aer Lingus Logo
5:40 pm - 4:50 pmSFO  San Francisco-SOU Southampton Eastleigh
15h 10m1 stop Dublin
$765Aer Lingus
Wed, Sep 2 - Tue, Sep 8
Aer Lingus Logo
5:20 pm - 4:20 pmSOU  Southampton Eastleigh-SFO San Francisco
31h 00m2 stops Dublin Madrid Barajas
Aer Lingus Logo
6:00 am - 4:50 pmSFO  San Francisco-SOU Southampton Eastleigh
26h 50m2 stops Philadelphia Dublin
$779Aer Lingus
Wed, Sep 2 - Tue, Sep 8
Aer Lingus Logo
8:00 pm - 4:20 pmSOU  Southampton Eastleigh-SFO San Francisco
28h 20m2 stops Dublin Madrid Barajas
Aer Lingus Logo
1:45 pm - 7:30 pmSFO  San Francisco-SOU Southampton Eastleigh
21h 45m2 stops Los Angeles Dublin
$783Aer Lingus
Wed, Sep 2 - Tue, Sep 8
Aer Lingus Logo
8:00 pm - 4:20 pmSOU  Southampton Eastleigh-SFO San Francisco
28h 20m2 stops Dublin Madrid Barajas
Aer Lingus Logo
11:50 am - 7:30 pmSFO  San Francisco-SOU Southampton Eastleigh
23h 40m2 stops Los Angeles Dublin
$788Aer Lingus
Wed, Sep 9 - Wed, Sep 16
Aer Lingus Logo
5:20 pm - 4:20 pmSOU  Southampton Eastleigh-SFO San Francisco
31h 00m2 stops Dublin Madrid Barajas
Aer Lingus Logo
5:40 pm - 7:30 pmSFO  San Francisco-SOU Southampton Eastleigh
17h 50m1 stop Dublin
$804Aer Lingus
Wed, Sep 16 - Wed, Sep 23
Aer Lingus Logo
5:20 pm - 4:20 pmSOU  Southampton Eastleigh-SFO San Francisco
31h 00m2 stops Dublin Madrid Barajas
Aer Lingus Logo
10:31 am - 4:50 pmSFO  San Francisco-SOU Southampton Eastleigh
22h 19m2 stops Chicago O'Hare Intl Dublin
$816Aer Lingus
Wed, Sep 16 - Wed, Sep 23
Delta Logo
6:05 pm - 11:45 amSOU  Southampton Eastleigh-SFO San Francisco
25h 40m1 stop Amsterdam Schiphol
Delta Logo
7:00 am - 8:45 amSFO  San Francisco-SOU Southampton Eastleigh
17h 45m2 stops New York John F Kennedy Intl Amsterdam Schiphol
$928Delta
Fri, Aug 21 - Fri, Sep 11
Delta Logo
9:15 am - 11:50 pmSOU  Southampton Eastleigh-SFO San Francisco
22h 35m2 stops Amsterdam Schiphol Seattle/Tacoma Intl
Delta Logo
6:23 am - 4:50 pmSFO  San Francisco-SOU Southampton Eastleigh
26h 27m2 stops Seattle/Tacoma Intl Amsterdam Schiphol
$934Delta
Sun, Aug 23 - Tue, Sep 8

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Aer Lingus flights from Southampton to San Francisco

Our best Aer Lingus deals on Southampton to San Francisco flight tickets
Aer Lingus
Sep 2
SOU8:00 pmSouthampton Eastleigh
28h 20m
2 stops
SFO4:20 pmSan Francisco
Sep 8
SFO5:40 pmSan Francisco
15h 10m
1 stop
SOU4:50 pmSouthampton Eastleigh
$759
Aer Lingus
Sep 2
SOU9:20 amSouthampton Eastleigh
14h 35m
1 stop
SFO3:55 pmSan Francisco
Sep 8
SFO5:40 pmSan Francisco
15h 10m
1 stop
SOU4:50 pmSouthampton Eastleigh
$762
Aer Lingus
Sep 2
SOU9:20 amSouthampton Eastleigh
14h 35m
1 stop
SFO3:55 pmSan Francisco
Sep 8
SFO5:40 pmSan Francisco
15h 10m
1 stop
SOU4:50 pmSouthampton Eastleigh
$765

Delta flights from Southampton to San Francisco

Our best Delta deals on Southampton to San Francisco flight tickets
Delta
Aug 21
SOU9:15 amSouthampton Eastleigh
34h 30m
1 stop
SFO11:45 amSan Francisco
Sep 12
SFO10:35 pmSan Francisco
26h 00m
2 stops
SOU8:35 amSouthampton Eastleigh
$928
Delta
Aug 23
SOU9:15 amSouthampton Eastleigh
22h 35m
2 stops
SFO11:50 pmSan Francisco
Sep 12
SFO9:59 amSan Francisco
22h 51m
2 stops
SOU4:50 pmSouthampton Eastleigh
$934
Delta
Dec 12
SOU9:25 amSouthampton Eastleigh
34h 20m
1 stop
SFO11:45 amSan Francisco
Jan 9
SFO6:15 amSan Francisco
18h 40m
2 stops
SOU8:55 amSouthampton Eastleigh
$942

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 August 5, 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 Southampton Eastleigh - SFO San Francisco

SOUSFO

Southampton Eastleigh

Wed 9/2

8:00 pm-4:20 pm

2 stops28h 20m

San Francisco

Tue 9/8

5:40 pm-4:50 pm

1 stop15h 10m

$759
Quickest round-trip

SouthamptonSan Francisco

SOU Southampton Eastleigh - SFO San Francisco

SOUSFO

Southampton Eastleigh

Wed 9/2

9:20 am-3:55 pm

1 stop14h 35m

San Francisco

Tue 9/8

5:40 pm-4:50 pm

1 stop15h 10m

$762

SouthamptonSan Francisco

SOU Southampton Eastleigh - SFO San Francisco

SOUSFO

Southampton Eastleigh

Wed 9/2

9:20 am-3:55 pm

1 stop14h 35m

San Francisco

Tue 9/8

5:40 pm-4:50 pm

1 stop15h 10m

$765

SouthamptonSan Francisco

SOU Southampton Eastleigh - SFO San Francisco

SOUSFO

Southampton Eastleigh

Wed 9/2

5:20 pm-4:20 pm

2 stops31h 00m

San Francisco

Tue 9/8

6:00 am-4:50 pm

2 stops26h 50m

$779

SouthamptonSan Francisco

SOU Southampton Eastleigh - SFO San Francisco

SOUSFO

Southampton Eastleigh

Wed 9/2

8:00 pm-4:20 pm

2 stops28h 20m

San Francisco

Tue 9/8

1:45 pm-7:30 pm

2 stops21h 45m

$783

SouthamptonSan Francisco

SOU Southampton Eastleigh - SFO San Francisco

SOUSFO

Southampton Eastleigh

Wed 9/9

8:00 pm-4:20 pm

2 stops28h 20m

San Francisco

Wed 9/16

11:50 am-7:30 pm

2 stops23h 40m

$788

SouthamptonSan Francisco

SOU Southampton Eastleigh - SFO San Francisco

SOUSFO

Southampton Eastleigh

Wed 9/16

5:20 pm-4:20 pm

2 stops31h 00m

San Francisco

Wed 9/23

5:40 pm-7:30 pm

1 stop17h 50m

$804

SouthamptonSan Francisco

SOU Southampton Eastleigh - SFO San Francisco

SOUSFO

Southampton Eastleigh

Wed 9/16

5:20 pm-4:20 pm

2 stops31h 00m

San Francisco

Wed 9/23

10:31 am-4:50 pm

2 stops22h 19m

$816

SouthamptonSan Francisco

SOU Southampton Eastleigh - SFO San Francisco

SOUSFO

Southampton Eastleigh

Fri 8/21

6:05 pm-11:45 am

1 stop25h 40m

San Francisco

Fri 9/11

7:00 am-8:45 am

2 stops17h 45m

$928

SouthamptonSan Francisco

SOU Southampton Eastleigh - SFO San Francisco

SOUSFO

Southampton Eastleigh

Sun 8/23

9:15 am-11:50 pm

2 stops22h 35m

San Francisco

Tue 9/8

6:23 am-4:50 pm

2 stops26h 27m

$934

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 Friday when prices can be found for as low as $746. The most expensive day to fly to San Francisco is Sunday, with ticket prices averaging around $898.

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 $762. Flights in the morning are often more expensive with an average ticket price of $800.

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 15m

Direct flights

None
The fastest flight from Southampton to San Francisco takes 14h 15m
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 15m.

  • 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
South San Francisco
Fremont
Berkeley
Hayward
Walnut Creek
Bodega Bay
Roseville
Sonoma
Santa Clara
Vallejo
Salinas
Sunnyvale
Milpitas
Daly City
Burlingame
Turlock
Marina

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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