Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from San Francisco to London from $522

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 4/30. 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
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from San Francisco to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
KLM Logo
1:45 pm - 4:50 pm
SFO
-
SOU
19h 05m
1 stop
KLM Logo
9:05 am - 10:55 pm
SOU
-
SFO
21h 50m
2 stops
$1,004KLM
Wed, Sep 16 - Fri, Oct 2
KLM Logo
1:45 pm - 8:35 am
SFO
-
SOU
34h 50m
1 stop
KLM Logo
9:05 am - 10:55 pm
SOU
-
SFO
21h 50m
2 stops
$1,008KLM
Wed, Sep 16 - Fri, Oct 2
Delta Logo
11:45 pm - 8:45 am
SFO
-
SOU
25h 00m
2 stops
Delta Logo
5:20 pm - 11:45 am
SOU
-
SFO
26h 25m
1 stop
$1,010Delta
Tue, Aug 25 - Mon, Sep 7
Delta Logo
11:05 am - 4:50 pm
SFO
-
SOU
21h 45m
2 stops
Delta Logo
9:05 am - 10:55 pm
SOU
-
SFO
21h 50m
2 stops
$1,012Delta
Wed, Sep 16 - Fri, Oct 2
Delta Logo
11:45 pm - 8:45 am
SFO
-
SOU
25h 00m
2 stops
Delta Logo
5:20 pm - 11:45 am
SOU
-
SFO
26h 25m
1 stop
$1,013Delta
Tue, Aug 25 - Mon, Sep 7
Delta Logo
11:45 pm - 8:45 am
SFO
-
SOU
25h 00m
2 stops
Delta Logo
5:20 pm - 11:45 am
SOU
-
SFO
26h 25m
1 stop
$1,014Delta
Tue, Aug 25 - Mon, Sep 7
Delta Logo
1:45 pm - 8:35 am
SFO
-
SOU
34h 50m
1 stop
Delta Logo
5:20 pm - 11:45 am
SOU
-
SFO
26h 25m
1 stop
$1,021Delta
Sun, Apr 26 - Mon, May 4
Delta Logo
6:15 am - 8:45 am
SFO
-
SOU
18h 30m
2 stops
Delta Logo
5:20 pm - 10:52 pm
SOU
-
SFO
37h 32m
2 stops
$1,024Delta
Wed, Aug 26 - Wed, Sep 9
Delta Logo
11:59 pm - 8:35 am
SFO
-
SOU
24h 36m
2 stops
Delta Logo
9:05 am - 11:45 am
SOU
-
SFO
34h 40m
1 stop
$1,025Delta
Sun, Apr 26 - Mon, May 4
Delta Logo
10:45 pm - 8:35 am
SFO
-
SOU
25h 50m
2 stops
Delta Logo
9:05 am - 11:45 am
SOU
-
SFO
34h 40m
1 stop
$1,028Delta
Sat, Aug 29 - Thu, Sep 10

KLM flights from San Francisco to Southampton

Our best KLM deals on San Francisco to Southampton flight tickets
KLM
Sep 16
SFO1:45 pmSan Francisco
19h 05m
1 stop
SOU4:50 pmSouthampton Eastleigh
Oct 2
SOU9:05 amSouthampton Eastleigh
21h 50m
2 stops
SFO10:55 pmSan Francisco
$1,004
KLM
Sep 16
SFO1:45 pmSan Francisco
34h 50m
1 stop
SOU8:35 amSouthampton Eastleigh
Oct 2
SOU9:05 amSouthampton Eastleigh
21h 50m
2 stops
SFO10:55 pmSan Francisco
$1,008
KLM
May 13
SFO6:15 amSan Francisco
18h 20m
2 stops
SOU8:35 amSouthampton Eastleigh
May 20
SOU9:05 amSouthampton Eastleigh
19h 28m
2 stops
SFO8:33 pmSan Francisco
$1,035

Delta flights from San Francisco to Southampton

Our best Delta deals on San Francisco to Southampton flight tickets
Delta
Aug 25
SFO11:45 pmSan Francisco
25h 00m
2 stops
SOU8:45 amSouthampton Eastleigh
Sep 7
SOU5:20 pmSouthampton Eastleigh
26h 25m
1 stop
SFO11:45 amSan Francisco
$1,010
Delta
Sep 16
SFO11:05 amSan Francisco
21h 45m
2 stops
SOU4:50 pmSouthampton Eastleigh
Oct 2
SOU9:05 amSouthampton Eastleigh
21h 50m
2 stops
SFO10:55 pmSan Francisco
$1,012
Delta
Aug 25
SFO11:45 pmSan Francisco
25h 00m
2 stops
SOU8:45 amSouthampton Eastleigh
Sep 7
SOU5:20 pmSouthampton Eastleigh
26h 25m
1 stop
SFO11:45 amSan Francisco
$1,013

momondo Fare Finder

 
Customize 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 832,500 searches. Data last updated April 3, 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 round-trip
Quickest round-trip

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Wed 9/16

1:45 pm-4:50 pm

1 stop19h 05m

Southampton Eastleigh

Fri 10/2

9:05 am-10:55 pm

2 stops21h 50m

$1,004

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Wed 9/16

1:45 pm-8:35 am

1 stop34h 50m

Southampton Eastleigh

Fri 10/2

9:05 am-10:55 pm

2 stops21h 50m

$1,008

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Tue 8/25

11:45 pm-8:45 am

2 stops25h 00m

Southampton Eastleigh

Mon 9/7

5:20 pm-11:45 am

1 stop26h 25m

$1,010

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Wed 9/16

11:05 am-4:50 pm

2 stops21h 45m

Southampton Eastleigh

Fri 10/2

9:05 am-10:55 pm

2 stops21h 50m

$1,012

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Tue 8/25

11:45 pm-8:45 am

2 stops25h 00m

Southampton Eastleigh

Mon 9/7

5:20 pm-11:45 am

1 stop26h 25m

$1,013

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Tue 8/25

11:45 pm-8:45 am

2 stops25h 00m

Southampton Eastleigh

Mon 9/7

5:20 pm-11:45 am

1 stop26h 25m

$1,014

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Sun 4/26

1:45 pm-8:35 am

1 stop34h 50m

Southampton Eastleigh

Mon 5/4

5:20 pm-11:45 am

1 stop26h 25m

$1,021

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Wed 8/26

6:15 am-8:45 am

2 stops18h 30m

Southampton Eastleigh

Wed 9/9

5:20 pm-10:52 pm

2 stops37h 32m

$1,024

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Sun 4/26

11:59 pm-8:35 am

2 stops24h 36m

Southampton Eastleigh

Mon 5/4

9:05 am-11:45 am

1 stop34h 40m

$1,025

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

Sat 8/29

10:45 pm-8:35 am

2 stops25h 50m

Southampton Eastleigh

Thu 9/10

9:05 am-11:45 am

1 stop34h 40m

$1,028

Flights are sorted by cheapest round-trip 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

Can stopping save me money on San Francisco to Southampton flights?

You could potentially save up to 25% on your flight if you consider stops on a San Francisco to Southampton flight.

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 round-trip 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

17h 50m

Direct flights

None
The fastest flight from San Francisco to Southampton takes 17h 50m
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?

    There are 5341.3 mi between San Francisco and Southampton Eastleigh. By plane, this route typically takes 17h 50m.

  • 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 many operators does momondo search for flights from San Francisco Airport to Southampton Eastleigh Airport?

  • How old do you have to be to fly from San Francisco Airport to Southampton Eastleigh 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 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 you'll need for your trip to Southampton Eastleigh Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Southampton Eastleigh Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from San Francisco to Southampton?

Best airlines flying from San Francisco to Southampton

Compare and see reviews for airlines that fly from San Francisco to Southampton with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $781Free CancellationRating
7.9
8,375 reviews
Search Delta flights
KLMPriceFrom $814Free CancellationRating
7.7
1,485 reviews
Search KLM flights

Traveling 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?

It is quick and easy to find San Francisco to Southampton flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Southampton that suits you.

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

Yes. All flights to Southampton from San Francisco on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo helps you find the best flight between San Francisco and Southampton by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

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

An easier way to manage your Southampton trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sun 5/3
Sun 5/10
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United Kingdom