SFO - SOU

$404 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 9/14. 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

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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Flights 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, Sep 22 - Mon, Sep 29
Delta Logo
1:45 pm - 8:45 amSFO-SOU
35h 00m1 stop
Delta Logo
5:35 pm - 11:45 amSOU-SFO
26h 10m1 stop
$812Delta
Find Deal
Mon, Sep 22 - Mon, Sep 29
Delta Logo
10:55 pm - 8:45 amSFO-SOU
25h 50m2 stops
Delta Logo
5:35 pm - 11:45 amSOU-SFO
26h 10m1 stop
$817Delta
Find Deal
Mon, Sep 22 - Fri, Oct 3
Delta Logo
1:45 pm - 5:00 pmSFO-SOU
19h 15m1 stop
Delta Logo
9:20 am - 9:27 pmSOU-SFO
20h 07m2 stops
$822Delta
Find Deal
Wed, Sep 24 - Mon, Sep 29
Delta Logo
6:45 am - 8:45 amSFO-SOU
18h 00m2 stops
Delta Logo
5:35 pm - 4:04 pmSOU-SFO
30h 29m2 stops
$827Delta
Find Deal
Tue, Sep 30 - Tue, Oct 7
Delta Logo
12:45 am - 5:00 pmSFO-SOU
32h 15m2 stops
Delta Logo
5:35 pm - 11:45 amSOU-SFO
26h 10m1 stop
$829Delta
Find Deal
Thu, Sep 4 - Sun, Sep 14
KLM Logo
7:00 am - 8:45 amSFO-SOU
17h 45m2 stops
KLM Logo
6:25 pm - 11:45 amSOU-SFO
25h 20m1 stop
$876KLM
Find Deal
Thu, Sep 4 - Sun, Sep 14
KLM Logo
7:00 am - 8:45 amSFO-SOU
17h 45m2 stops
KLM Logo
9:20 am - 8:18 pmSOU-SFO
18h 58m2 stops
$886KLM
Find Deal
Thu, Aug 14 - Thu, Aug 21
Aer Lingus Logo
5:45 pm - 7:30 pmSFO-SOU
17h 45m1 stop
Aer Lingus Logo
9:40 am - 7:45 pmSOU-SFO
18h 05m2 stops
$930Aer Lingus
Find Deal
Thu, Aug 14 - Thu, Aug 21
KLM Logo
3:40 pm - 5:50 pmSFO-SOU
18h 10m2 stops
KLM Logo
9:20 am - 7:51 pmSOU-SFO
18h 31m2 stops
$957KLM
Find Deal
Sat, Aug 23 - Sat, Sep 13
KLM Logo
1:45 pm - 8:45 amSFO-SOU
35h 00m1 stop
KLM Logo
6:05 pm - 11:45 amSOU-SFO
25h 40m1 stop
$974KLM
Find Deal
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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 Delta ($812) and KLM ($876).

Good to know

Cheapest flight$404
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 $404 for a one-way ticket and $812 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.

  • Which airline alliances offer flights from San Francisco to Southampton?

    SkyTeam is the only airline alliance operating flights between San Francisco and Southampton.

  • Which is the best airline for flights from San Francisco to Southampton, Delta or KLM?

    The two airlines most popular with KAYAK users for flights from San Francisco to Southampton are Delta and KLM. With an average price for the route of $880 and an overall rating of 8.0, Delta is the most popular choice. KLM is also a great choice for the route, with an average price of $918 and an overall rating of 7.8.

  • 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 3 airlines serving 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.
8.0
DeltaOverall score based on 7974 reviews
8.5Crew
7.9Comfort
7.9Entertainment
8.2Boarding
7.3Food
Airline reviews

Crew was excellent. Comfort seats not as nice as other kinds of planes.

10.0 ExcellentMary, Jun 2025SAN - ATL
Read more Delta reviews

Crew was excellent. Comfort seats not as nice as other kinds of planes.

It was a great flight and the stewards and stewardess were all kind and accommodating!! The seats were comfortable and entertainment screen excellent!

There are 4 flights in consecutive gates with about the same departure time. Two flights were boarding at the same time. One was delayed or boarding would be happening at the same time. I am not sure what Delta and LAX need to do to have a better layout at the end of Terminal 2

There was a security issue at the airport and we were unable to land. We circled endlessly and then landed at another airfield for fuel. We then circled the airport again, almost landed but didn’t fully touch down before circling again. I am thankful to the crew for keeping us safe- the issue was the airline and staff at the airport getting us seats on our connecting flights. That part was hours of searching for someone and getting in double my steps.

Most aspects were good however if they assign boarding zones they ought to enforce them or why bother? My luggage from SAN-JFK-MAD was lost in NY so I without my main bag for two days upon arrival in Spain. They were helpful in tracking it and eventually delivered it to my hotel. The flub was because of a delay upon arrival in NYC. I had booked 2 1/2 hours between flights but we had to hold on the taxiway for an hour after landing while waiting for a clear gate which likely caused the baggage error.

Excellent flight, the planes were newer, they did a nice job with boarding, great service overall.

It would be nice if was given wires ear buds. Overall was a good experience was able to sleep on the plane

737-800 in first class was pretty dumpy. Seat had an uncomfortable angle, storage under the seat was blocked so even my very modest backpack didn't fit, power outlet was flaky. Weird tiny seat pockets that couldn't hold a gallon ziploc bag, emesis bag missing, etc. etc. No in-flight service due to turbulence. Crew was excellent, boarding was smooth despite a full flight.

Delta flight was on time, seats were comfortable, and crew was nice.

Bathrooms dirty sinks clogged. No one seemed to clean them. Plane very old

Our first flight was delayed so we missed our connecting flight. However it was easy to book a later flight on their app.

My flight was delayed by 6 hours then I missed BOTH of my connecting flights, I then had to stay in the AIRPORT at JFK because soooooo many people also suffered from missing flights and there was no hotels available. I would like to be compensated for this experience! I had to stay in the airport for over 16 hours!

Klm start boarding while somw air issue in the plan

The service was great. However the lounge only gets passing grade

Cabin crew professional, polite and friendly, boarding was seemless, but come on KLM surely you can do better than a pack of cheesy biscuits as an inflight snack

Cabin crew were excellent, very proffesional, polite and friendly, in flight snack was underwhelming, a packet of cheese biscuits, im sure KLM could run to a sandwich!

This portion of the flight was through Indigo. A local carrier. So all economy seating. No real service some refreshments for purchase standard economy stuff.

Overall very positive. Boarding was quick and organized. Cabin was clean and seats were reasonably comfortable. Cabin crew was excellent and the meals provided were also of good quality

This fight left ahead of time which meant it arrived early which was great. Staff were very professional, but as with all these Short hop Flights the food was a disappointing snack There was no entertainment on this flight, but I did not expect any

I flew premium economy and this was a good option. Although the seats didn’t recline much, I was able to get some sleep with my head propped against the window. The food was good and the entertainment was wonderful The staff were very attentive and professional

Seats were less comfortable and tight from Newark to Dublin, than my second flight ( small segment from Dublin to Lyon). Movie audio was with frying sound overall. Yet the worst was as follows: one male, (dark hair , glasses on) from the crew member was so cold and rough, while I remained with constancy polite and kind. Per exple with the noise level I could not hear him at first for beverages, he rolled his eyes at the third times I finally heard him. From the start, loading my small hand bags , he directly spoke to me and said “ I had to keep my shopping bad by my seat, under , while there was sufficient room and I was among the last to sit. I show him the space , his face was always dull, stoic, not welcoming as the usual crew members from any airline companies are. When I think of my experience I liard w Aer Lingus, this is the image that gets back to me. Needless to say that as a passenger and client, I felt belittled since all this happened in front of the surrendering passengers. It s an affront and not a pleasant feeling especially when being traveling which oftentimes involves stress with carrying, and making it on time. I m not happy with the experience I had to be honest and I fly four times a year. Thank you for allowing me to share this statement with your company.

The flight was delayed by about an hour, but the staff and signs at the airport never actually said it was delayed. At the expected boarding time, we were told we would be boarding in about 10 minutes, then 20 minutes passed, and were told again that we would board in about 10 minutes. That happened multiple times, such that "10 minutes" turned into an hour.

The seat spacing was good. The food, not so good... typical airline food. 😕

I would face like to have more selections for entertainments overall it was very good. .

One cold drinks service. No snacks with drinks. No tomato juice or apple juice, coke - only fanta or sprite then ran out of that. Went to gally after meal service no one there / no self service for water at least. Waited 25 min for cabin crew to assist. No recycling of cardboard/ plastic - all put to garbage. Breakfast was a nutrigrain bar and an orange juice. Also I'm sure I booked a flight with checked luggage allowance but had to buy extra when I had my booking confirmation. Movies were good. Chairs comfy. Pillow and blanket and ac vents.

At check-in the unmanned machines said QR code was invalid so had to queue for over an hour to check in bags

i used to fly aer Lingus regularly but due to price - poor seating etc i have been using other carriers - i now have aer lingus in my state and the price is always the highest - i have flown to Ireland 11 times in last 24 months and have not used Hartford because of price

Nicest staff I’ve experienced on a plane! Good food, great entertainment, and they gave out little blankets that my kids loved. All in all, great experience.

I dont fly them much anymore. Other carries offere better pricing and better seating options

I liked how they looked after couples by providing a row of 4 seats if available.

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

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