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Cheap flights from San Francisco to London from £337

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 15/4. 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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0 bags
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Cheap return flights

Enter your travel dates to find the best prices.
Delta Logo
14:55 - 17:00
SFO
-
SOU
19h 05m
1 stop
Delta Logo
17:20 - 11:45
SOU
-
SFO
26h 25m
1 stop
£572Delta
Mon, 16 Mar - Tue, 31 Mar
Delta Logo
14:55 - 17:00
SFO
-
SOU
19h 05m
1 stop
Delta Logo
17:35 - 12:50
SOU
-
SFO
26h 15m
1 stop
£572Delta
Mon, 16 Mar - Tue, 24 Mar
Delta Logo
05:50 - 08:20
SFO
-
SOU
19h 30m
2 stops
Delta Logo
09:05 - 11:45
SOU
-
SFO
34h 40m
1 stop
£575Delta
Mon, 16 Mar - Tue, 31 Mar
Delta Logo
22:55 - 08:20
SFO
-
SOU
26h 25m
2 stops
Delta Logo
08:50 - 12:50
SOU
-
SFO
35h 00m
1 stop
£575Delta
Sun, 15 Mar - Tue, 24 Mar
Delta Logo
14:55 - 17:00
SFO
-
SOU
19h 05m
1 stop
Delta Logo
17:35 - 23:15
SOU
-
SFO
36h 40m
2 stops
£580Delta
Mon, 16 Mar - Wed, 25 Mar
Delta Logo
07:00 - 08:20
SFO
-
SOU
18h 20m
2 stops
Delta Logo
17:20 - 16:04
SOU
-
SFO
30h 44m
2 stops
£582Delta
Wed, 18 Mar - Tue, 31 Mar
Delta Logo
13:45 - 16:50
SFO
-
SOU
19h 05m
1 stop
Delta Logo
17:20 - 11:45
SOU
-
SFO
26h 25m
1 stop
£583Delta
Mon, 13 Apr - Thu, 21 May
Delta Logo
05:59 - 16:50
SFO
-
SOU
26h 51m
2 stops
Delta Logo
17:20 - 11:45
SOU
-
SFO
26h 25m
1 stop
£586Delta
Mon, 13 Apr - Thu, 21 May
Delta Logo
05:50 - 08:35
SFO
-
SOU
18h 45m
2 stops
Delta Logo
17:20 - 16:31
SOU
-
SFO
31h 11m
2 stops
£593Delta
Sun, 12 Apr - Thu, 21 May
Delta Logo
13:45 - 16:50
SFO
-
SOU
19h 05m
1 stop
Delta Logo
09:05 - 11:45
SOU
-
SFO
34h 40m
1 stop
£614Delta
Mon, 13 Apr - Tue, 26 May

Delta flights from San Francisco to Southampton

Our best Delta deals on San Francisco to Southampton flight tickets
Delta
16 Mar
SFO14:55San Francisco
19h 05m
1 stop
SOU17:00Southampton Eastleigh
31 Mar
SOU17:20Southampton Eastleigh
26h 25m
1 stop
SFO11:45San Francisco
£572
Delta
16 Mar
SFO14:55San Francisco
19h 05m
1 stop
SOU17:00Southampton Eastleigh
24 Mar
SOU17:35Southampton Eastleigh
26h 15m
1 stop
SFO12:50San Francisco
£572
Delta
16 Mar
SFO05:50San Francisco
19h 30m
2 stops
SOU08:20Southampton Eastleigh
31 Mar
SOU09:05Southampton Eastleigh
34h 40m
1 stop
SFO11:45San Francisco
£575

KLM flights from San Francisco to Southampton

Our best KLM deals on San Francisco to Southampton flight tickets
KLM
17 Mar
SFO14:55San Francisco
19h 05m
1 stop
SOU17:00Southampton Eastleigh
24 Mar
SOU17:35Southampton Eastleigh
26h 15m
1 stop
SFO12:50San Francisco
£620
KLM
17 Mar
SFO09:15San Francisco
16h 05m
2 stops
SOU08:20Southampton Eastleigh
24 Mar
SOU08:50Southampton Eastleigh
35h 00m
1 stop
SFO12:50San Francisco
£623
KLM
17 Mar
SFO07:00San Francisco
18h 20m
2 stops
SOU08:20Southampton Eastleigh
24 Mar
SOU08:50Southampton Eastleigh
20h 46m
2 stops
SFO22:36San Francisco
£631

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 17 February 2026.
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 16/3

14:55-17:00

1 stop19h 05m

Southampton Eastleigh

Tue 31/3

17:20-11:45

1 stop26h 25m

£572

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Mon 16/3

14:55-17:00

1 stop19h 05m

Southampton Eastleigh

Tue 24/3

17:35-12:50

1 stop26h 15m

£572

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Mon 16/3

05:50-08:20

2 stops19h 30m

Southampton Eastleigh

Tue 31/3

09:05-11:45

1 stop34h 40m

£575

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Sun 15/3

22:55-08:20

2 stops26h 25m

Southampton Eastleigh

Tue 24/3

08:50-12:50

1 stop35h 00m

£575

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Mon 16/3

14:55-17:00

1 stop19h 05m

Southampton Eastleigh

Wed 25/3

17:35-23:15

2 stops36h 40m

£580

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Wed 18/3

07:00-08:20

2 stops18h 20m

Southampton Eastleigh

Tue 31/3

17:20-16:04

2 stops30h 44m

£582

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Mon 13/4

13:45-16:50

1 stop19h 05m

Southampton Eastleigh

Thu 21/5

17:20-11:45

1 stop26h 25m

£583

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Mon 13/4

05:59-16:50

2 stops26h 51m

Southampton Eastleigh

Thu 21/5

17:20-11:45

1 stop26h 25m

£586

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Sun 12/4

05:50-08:35

2 stops18h 45m

Southampton Eastleigh

Thu 21/5

17:20-16:31

2 stops31h 11m

£593

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Mon 13/4

13:45-16:50

1 stop19h 05m

Southampton Eastleigh

Tue 26/5

09:05-11:45

1 stop34h 40m

£614

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?

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

Which airlines fly to Southampton?

Virgin Atlantic, United Airlines and British Airways are the top three most popular airlines that fly to Southampton from San Francisco according to our data. Virgin Atlantic is the first choice among our users, with 36% of people opting to fly with this airline when travelling to Southampton. Keep in mind that there are 6 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

Fastest flight time

18h 45m

Direct flights

None
The fastest flight from San Francisco to Southampton takes 18h 45m
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?

    The straight-line distance from San Francisco to Southampton Eastleigh is 5341.1 mi. By plane, this route typically takes 18h 45m.

  • 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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