SFO - SOU

$574 Find Cheap Flights from San Francisco to Southampton

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Francisco to Southampton departing on 4/15. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Southampton

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to Southampton, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to Southampton, as well as popular online travel agencies
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41 299 237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$789
Delta
Mon 8/10Thu 8/20
SFO - SOU • 1 stop
Cheapest one-way
$574
Aer Lingus
Wed 4/15
SFO - SOU • 1 stop
Top airlines
KLM
Cheapest • from $789 (round-trip)
Aer Lingus
Best reviews • 7.2 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between San Francisco and Southampton. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Dublin (DUB)
Cheapest • Avg $1,189 (round-trip)
Dublin (DUB)
Shortest trip • 16h 44m (one-way)
Insights
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Insights
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Southampton!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from San Francisco to Southampton (SFO-SOU)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Francisco to Southampton that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Francisco to Southampton

Mon, Aug 10 - Thu, Aug 20
Delta Logo
1:45 pm - 8:45 am
SFO
-
SOU
35h 00m
1 stop
Delta Logo
6:05 pm - 11:45 am
SOU
-
SFO
25h 40m
1 stop
$789Delta
Tue, Aug 11 - Thu, Aug 20
Delta Logo
10:00 pm - 8:45 am
SFO
-
SOU
26h 45m
2 stops
Delta Logo
9:15 am - 11:45 am
SOU
-
SFO
34h 30m
1 stop
$793Delta
Wed, May 6 - Thu, May 14
KLM Logo
1:45 pm - 8:35 am
SFO
-
SOU
34h 50m
1 stop
KLM Logo
9:05 am - 7:20 pm
SOU
-
SFO
18h 15m
2 stops
$799KLM
Sat, May 9 - Mon, May 18
Delta Logo
6:25 pm - 4:50 pm
SFO
-
SOU
38h 25m
2 stops
Delta Logo
5:20 pm - 11:45 am
SOU
-
SFO
26h 25m
1 stop
$805Delta
Sat, May 9 - Mon, May 18
Delta Logo
8:30 pm - 4:50 pm
SFO
-
SOU
36h 20m
2 stops
Delta Logo
9:05 am - 4:57 pm
SOU
-
SFO
39h 52m
2 stops
$809Delta
Tue, Mar 31 - Wed, Apr 15
Delta Logo
5:50 am - 8:35 am
SFO
-
SOU
18h 45m
2 stops
Delta Logo
5:20 pm - 11:45 am
SOU
-
SFO
26h 25m
1 stop
$814Delta
Mon, Aug 10 - Sun, Aug 23
Delta Logo
1:45 pm - 5:35 pm
SFO
-
SOU
19h 50m
1 stop
Delta Logo
5:30 pm - 11:45 am
SOU
-
SFO
26h 15m
1 stop
$819Delta
Tue, Aug 11 - Sat, Aug 22
Delta Logo
10:00 pm - 8:45 am
SFO
-
SOU
26h 45m
2 stops
Delta Logo
5:30 pm - 11:45 am
SOU
-
SFO
26h 15m
1 stop
$823Delta
Tue, Mar 31 - Thu, Apr 16
Delta Logo
5:50 am - 8:35 am
SFO
-
SOU
18h 45m
2 stops
Delta Logo
9:05 am - 8:51 pm
SOU
-
SFO
19h 46m
2 stops
$824Delta
Mon, Apr 6 - Tue, Apr 14
Delta Logo
7:19 pm - 4:50 pm
SFO
-
SOU
37h 31m
2 stops
Delta Logo
5:20 pm - 11:45 am
SOU
-
SFO
26h 25m
1 stop
$825Delta
Booking Insights

KAYAK's insights & trends for San Francisco to Southampton flights

Get data-powered insights and trends into flights from San Francisco to Southampton to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from San Francisco to Southampton?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from San Francisco to Southampton were found on KLM ($789) and Delta ($809).

Find deals

Good to know

Cheapest flight$574
Flight from San Francisco to Southampton

When to book flights from San Francisco to Southampton

Are your dates flexible? Find out the best times to travel from San Francisco to Southampton based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from San Francisco to Southampton

  • What is the cheapest flight from San Francisco to Southampton?

    In the last 3 days, the lowest price for a flight from San Francisco to Southampton was $574 for a one-way ticket and $789 for a round-trip.

  • Do I need a passport to fly between San Francisco and Southampton?

    Yes

  • Which airports will I be using when flying from San Francisco to Southampton?

    San Francisco and Southampton are both served by 1 main airport. You will leave San Francisco from San Francisco and will be arriving at Southampton Eastleigh.

  • Which aircraft models fly most regularly from San Francisco to Southampton?

    We unfortunately don’t have that data for this specific route.

  • How does KAYAK find such low prices on flights from San Francisco to Southampton?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Francisco to Southampton.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Francisco to Southampton?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Southampton from San Francisco is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Francisco to Southampton?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Southampton with an airline and back to San Francisco with another airline. Booking your flights between San Francisco and SOU can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Francisco to Southampton?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Southampton from San Francisco up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from San Francisco to Southampton

 
See real verified KAYAK customer reviews for airlines flying from San Francisco to Southampton. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from San Francisco to Southampton? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.2
Aer LingusOverall score based on 1464 reviews
6.6Food
7.0Entertainment
7.4Boarding
7.1Comfort
8.1Crew
Airline reviews

Great. Has a problem with DOB. Fixed 4 us. Led to a 5 hour earlier flight to London!

10.0 ExcellentAnonymous, Feb 2026
DUB - LHR
Read more Aer Lingus reviews

Great. Has a problem with DOB. Fixed 4 us. Led to a 5 hour earlier flight to London!

Punctual, smooth flight. Crew excellent and cabin very clean. Paid for WiFi but once you close out you cannot get back in even if you paid for entire flight.

Flight crew was superb. Meal was one of the meals at altitude I’ve had

Canceled my flight couple hours before takeoff. They could not find a decent re-routing and refused to pay for when i subjected alternative with Lufthansa.

Seats a little to soft on the SFO DUB flight

Well, I think we left close to on time. Crew was “eh”.

Flight takeoff was delayed an hour, but arrival time was not updated at the same time as departure time, so those picking me up at the other end were not alerted to the change in my arrival.

Seats are terribly cramped. I’m only 5’2” and my knees were practically in my face. No room to put a normal size bag under the seat and when the person in front of you reclined their seat your tray table was in your lap. This is the airline’s way of cramming more seats into the plane to make more money. I’ll think twice about taking Aer Lingus again since there are a few other options from Boston to the Emerald Isle.

Couldn’t check In online, message was couldn’t check in until Sunday morning though plane left Saturday night. Checked in okay at airport but caused slot if stress.

Fast and sensible boarding was absolutely amazing. But extortionate wifi and seats that barely moved, making me unable to sleep, didn't do a lot of favors.

Everything you need to know for your flight from San Francisco to Southampton

Information on your arrival and departure airports

San Francisco (SFO)
Southampton (SOU)