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Cheap flights from San Francisco to London from £302

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 11/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags
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Find the cheapest flights from San Francisco to London

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
17:40 - 11:05
SFO
-
SOU
33h 25m
2 stops
Multiple Airlines Logo
09:20 - 15:55
SOU
-
SFO
14h 35m
1 stop
£706Multiple Airlines
Tue, 29 Sep - Wed, 7 Oct
Aer Lingus Logo
17:35 - 16:50
SFO
-
SOU
15h 15m
1 stop
Aer Lingus Logo
09:20 - 15:55
SOU
-
SFO
14h 35m
1 stop
£725Aer Lingus
Mon, 17 Aug - Wed, 26 Aug
Aer Lingus Logo
17:35 - 16:50
SFO
-
SOU
15h 15m
1 stop
Aer Lingus Logo
09:20 - 15:50
SOU
-
SFO
14h 30m
1 stop
£740Aer Lingus
Mon, 17 Aug - Mon, 24 Aug
Delta Logo
13:45 - 16:50
SFO
-
SOU
19h 05m
1 stop
Delta Logo
17:20 - 11:45
SOU
-
SFO
26h 25m
1 stop
£745Delta
Sun, 4 Oct - Wed, 7 Oct
Delta Logo
22:35 - 16:50
SFO
-
SOU
34h 15m
2 stops
Delta Logo
17:20 - 11:45
SOU
-
SFO
26h 25m
1 stop
£749Delta
Sat, 3 Oct - Wed, 7 Oct
Delta Logo
13:45 - 16:50
SFO
-
SOU
19h 05m
1 stop
Delta Logo
09:05 - 21:35
SOU
-
SFO
20h 30m
2 stops
£753Delta
Sun, 4 Oct - Fri, 9 Oct
Delta Logo
22:35 - 16:50
SFO
-
SOU
34h 15m
2 stops
Delta Logo
09:05 - 21:35
SOU
-
SFO
20h 30m
2 stops
£756Delta
Sat, 3 Oct - Fri, 9 Oct
Delta Logo
23:45 - 17:00
SFO
-
SOU
33h 15m
2 stops
Delta Logo
17:30 - 11:45
SOU
-
SFO
26h 15m
1 stop
£758Delta
Sun, 22 Nov - Thu, 26 Nov
Delta Logo
13:45 - 16:50
SFO
-
SOU
19h 05m
1 stop
Delta Logo
17:20 - 11:45
SOU
-
SFO
26h 25m
1 stop
£761Delta
Mon, 28 Sep - Tue, 6 Oct
Delta Logo
06:13 - 08:45
SFO
-
SOU
18h 32m
2 stops
Delta Logo
17:20 - 11:45
SOU
-
SFO
26h 25m
1 stop
£763Delta
Tue, 25 Aug - Mon, 7 Sep

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Delta flights from San Francisco to Southampton

Our best Delta deals on San Francisco to Southampton flight tickets
Delta
4 Oct
SFO13:45San Francisco
19h 05m
1 stop
SOU16:50Southampton Eastleigh
7 Oct
SOU17:20Southampton Eastleigh
26h 25m
1 stop
SFO11:45San Francisco
£745
Delta
3 Oct
SFO22:35San Francisco
34h 15m
2 stops
SOU16:50Southampton Eastleigh
7 Oct
SOU17:20Southampton Eastleigh
26h 25m
1 stop
SFO11:45San Francisco
£749
Delta
4 Oct
SFO13:45San Francisco
19h 05m
1 stop
SOU16:50Southampton Eastleigh
9 Oct
SOU09:05Southampton Eastleigh
20h 30m
2 stops
SFO21:35San Francisco
£753

Aer Lingus flights from San Francisco to Southampton

Our best Aer Lingus deals on San Francisco to Southampton flight tickets
Aer Lingus
17 Aug
SFO17:35San Francisco
15h 15m
1 stop
SOU16:50Southampton Eastleigh
26 Aug
SOU09:20Southampton Eastleigh
14h 35m
1 stop
SFO15:55San Francisco
£725
Aer Lingus
17 Aug
SFO17:35San Francisco
15h 15m
1 stop
SOU16:50Southampton Eastleigh
24 Aug
SOU09:20Southampton Eastleigh
14h 30m
1 stop
SFO15:50San Francisco
£740
Aer Lingus
6 Aug
SFO17:35San Francisco
15h 15m
1 stop
SOU16:50Southampton Eastleigh
22 Aug
SOU09:20Southampton Eastleigh
14h 35m
1 stop
SFO15:55San Francisco
£793

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 6 July 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

Cheapest return flight

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Tue 29/9

17:40-11:05

2 stops33h 25m

Southampton Eastleigh

Wed 7/10

09:20-15:55

1 stop14h 35m

£706

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Mon 17/8

17:35-16:50

1 stop15h 15m

Southampton Eastleigh

Wed 26/8

09:20-15:55

1 stop14h 35m

£725
Fastest return journey

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Mon 17/8

17:35-16:50

1 stop15h 15m

Southampton Eastleigh

Mon 24/8

09:20-15:50

1 stop14h 30m

£740

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Sun 4/10

13:45-16:50

1 stop19h 05m

Southampton Eastleigh

Wed 7/10

17:20-11:45

1 stop26h 25m

£745

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Sat 3/10

22:35-16:50

2 stops34h 15m

Southampton Eastleigh

Wed 7/10

17:20-11:45

1 stop26h 25m

£749

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Sun 4/10

13:45-16:50

1 stop19h 05m

Southampton Eastleigh

Fri 9/10

09:05-21:35

2 stops20h 30m

£753

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Sat 3/10

22:35-16:50

2 stops34h 15m

Southampton Eastleigh

Fri 9/10

09:05-21:35

2 stops20h 30m

£756

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Sun 22/11

23:45-17:00

2 stops33h 15m

Southampton Eastleigh

Thu 26/11

17:30-11:45

1 stop26h 15m

£758

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Mon 28/9

13:45-16:50

1 stop19h 05m

Southampton Eastleigh

Tue 6/10

17:20-11:45

1 stop26h 25m

£761

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Tue 25/8

06:13-08:45

2 stops18h 32m

Southampton Eastleigh

Mon 7/9

17:20-11:45

1 stop26h 25m

£763

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 is the most popular carrier 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 44% 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 00m

Direct flights

None
The fastest flight from San Francisco to Southampton takes 18h 00m
There are no direct flights from San Francisco to Southampton. There are no popular flight routes from San Francisco to Southampton.
Search flight deals

Frequently asked questions about flying from San Francisco to Southampton

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

    The straight-line distance from San Francisco to Southampton Eastleigh is 5341.3 mi. By plane, this route typically takes 18h 00m.

  • 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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