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Cheap flights from San Francisco to London from £334

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 27/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap return flights

Delta Logo
13:45 - 17:00SFO-SOU
19h 15m1 stop
Delta Logo
17:35 - 11:45SOU-SFO
26h 10m1 stop
£541Delta
Find Deal
Mon, 29 Sep - Mon, 6 Oct
KLM Logo
13:55 - 17:00SFO-SOU
19h 05m1 stop
KLM Logo
08:40 - 11:50SOU-SFO
35h 10m1 stop
£542KLM
Find Deal
Mon, 3 Nov - Mon, 10 Nov
Delta Logo
07:00 - 08:05SFO-SOU
41h 05m2 stops
Delta Logo
17:30 - 11:50SOU-SFO
26h 20m1 stop
£545Delta
Find Deal
Wed, 19 Nov - Tue, 2 Dec
Delta Logo
05:45 - 08:10SFO-SOU
18h 25m2 stops
Delta Logo
18:05 - 11:50SOU-SFO
25h 45m1 stop
£546Delta
Find Deal
Mon, 3 Nov - Mon, 10 Nov
Delta Logo
13:55 - 17:00SFO-SOU
19h 05m1 stop
Delta Logo
17:30 - 11:50SOU-SFO
26h 20m1 stop
£548Delta
Find Deal
Tue, 3 Feb - Wed, 11 Feb
Delta Logo
07:00 - 08:05SFO-SOU
41h 05m2 stops
Delta Logo
17:30 - 15:57SOU-SFO
30h 27m2 stops
£553Delta
Find Deal
Wed, 19 Nov - Tue, 2 Dec
Delta Logo
13:55 - 17:00SFO-SOU
19h 05m1 stop
Delta Logo
17:30 - 11:50SOU-SFO
26h 20m1 stop
£555Delta
Find Deal
Tue, 13 Jan - Wed, 21 Jan
Delta Logo
08:55 - 17:00SFO-SOU
24h 05m2 stops
Delta Logo
09:20 - 11:45SOU-SFO
34h 25m1 stop
£558Delta
Find Deal
Mon, 29 Sep - Tue, 7 Oct
Delta Logo
13:55 - 17:00SFO-SOU
19h 05m1 stop
Delta Logo
09:00 - 22:47SOU-SFO
21h 47m2 stops
£562Delta
Find Deal
Wed, 14 Jan - Fri, 23 Jan
Delta Logo
13:55 - 17:00SFO-SOU
19h 05m1 stop
Delta Logo
18:05 - 11:50SOU-SFO
25h 45m1 stop
£564Delta
Find Deal
Mon, 24 Nov - Mon, 1 Dec

Delta flights from San Francisco to Southampton

Our best Delta deals on San Francisco to Southampton flight tickets
Delta
29 Sept
SFO13:45San Francisco
19h 15m
1 stop
SOU17:00Southampton Eastleigh
6 Oct
SOU17:35Southampton Eastleigh
26h 10m
1 stop
SFO11:45San Francisco
£541
Find similar
Delta
19 Nov
SFO07:00San Francisco
41h 05m
2 stops
SOU08:05Southampton Eastleigh
2 Dec
SOU17:30Southampton Eastleigh
26h 20m
1 stop
SFO11:50San Francisco
£545
Find similar
Delta
3 Nov
SFO05:45San Francisco
18h 25m
2 stops
SOU08:10Southampton Eastleigh
10 Nov
SOU18:05Southampton Eastleigh
25h 45m
1 stop
SFO11:50San Francisco
£546
Find similar

British Airways flights from San Francisco to Southampton

Our best British Airways deals on San Francisco to Southampton flight tickets
British Airways
29 Sept
SFO06:30San Francisco
21h 35m
2 stops
SOU12:05Southampton Eastleigh
9 Oct
SOU09:40Southampton Eastleigh
14h 15m
1 stop
SFO15:55San Francisco
£1,658
Find similar
British Airways
27 Sept
SFO19:20San Francisco
16h 10m
2 stops
SOU19:30Southampton Eastleigh
4 Oct
SOU09:40Southampton Eastleigh
14h 15m
1 stop
SFO15:55San Francisco
£1,725
Find similar
British Airways
23 Sept
SFO09:00San Francisco
19h 05m
2 stops
SOU12:05Southampton Eastleigh
27 Sept
SOU09:40Southampton Eastleigh
14h 15m
1 stop
SFO15:55San Francisco
£2,466
Find similar

momondo Fare Finder

 
Customise 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 279,928 searches. Data last updated 19 September 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

Mon 29/9

13:45-17:00

1 stop19h 15m

Southampton Eastleigh

Mon 6/10

17:35-11:45

1 stop26h 10m

£541

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Mon 3/11

13:55-17:00

1 stop19h 05m

Southampton Eastleigh

Mon 10/11

08:40-11:50

1 stop35h 10m

£542

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Wed 19/11

07:00-08:05

2 stops41h 05m

Southampton Eastleigh

Tue 2/12

17:30-11:50

1 stop26h 20m

£545

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Mon 3/11

05:45-08:10

2 stops18h 25m

Southampton Eastleigh

Mon 10/11

18:05-11:50

1 stop25h 45m

£546

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Tue 3/2

13:55-17:00

1 stop19h 05m

Southampton Eastleigh

Wed 11/2

17:30-11:50

1 stop26h 20m

£548

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Wed 19/11

07:00-08:05

2 stops41h 05m

Southampton Eastleigh

Tue 2/12

17:30-15:57

2 stops30h 27m

£553

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Tue 13/1

13:55-17:00

1 stop19h 05m

Southampton Eastleigh

Wed 21/1

17:30-11:50

1 stop26h 20m

£555

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Mon 29/9

08:55-17:00

2 stops24h 05m

Southampton Eastleigh

Tue 7/10

09:20-11:45

1 stop34h 25m

£558

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Wed 14/1

13:55-17:00

1 stop19h 05m

Southampton Eastleigh

Fri 23/1

09:00-22:47

2 stops21h 47m

£562

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Mon 24/11

13:55-17:00

1 stop19h 05m

Southampton Eastleigh

Mon 1/12

18:05-11:50

1 stop25h 45m

£564

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 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

What is the cheapest airline that flies from San Francisco to Southampton Eastleigh?

Aer Lingus, Delta, and KLM are the most popular carriers operating from San Francisco to Southampton Eastleigh

Which airlines fly to Southampton?

United Airlines, Virgin Atlantic and British Airways are the top three most popular airlines that fly to Southampton from San Francisco according to our data. United Airlines is the first choice among our users, with 33% of people opting to fly with this airline when travelling to Southampton. Keep in mind that there are 9 different airlines that fly to Southampton on a routine basis, so you have a few additional options to choose from.

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 return 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

Direct flights

None
There are no direct flights from San Francisco to Southampton. There are no popular flight routes from San Francisco to Southampton.
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  • How far is San Francisco to Southampton Eastleigh by plane?

    The straight-line distance from San Francisco to Southampton Eastleigh is 5341.1 mi. By plane, this route typically takes 17h 05m.

  • 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?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for 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 required for your trip to Southampton Eastleigh 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 Southampton Eastleigh Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Travelling 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?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from San Francisco to Southampton for you.

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

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

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

momondo provides multiple filters to help you find the best flight to Southampton from San Francisco. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Price alerts on flights to Southampton from San Francisco are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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