SFO - SOU

$458 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 10/27. 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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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$792
Delta
Thu 11/13Wed 11/19
SFO - SOU • 1 stop
Cheapest one-way
$475
KLM
Mon 10/27
SFO - SOU • 1 stop
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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

Thu, Nov 13 - Wed, Nov 19
Delta Logo
1:55 pm - 5:00 pmSFO-SOU
19h 05m1 stop
Delta Logo
5:30 pm - 11:50 amSOU-SFO
26h 20m1 stop
$792Delta
Find Deal
Wed, Nov 12 - Tue, Nov 18
Delta Logo
12:30 am - 8:05 amSFO-SOU
23h 35m2 stops
Delta Logo
5:30 pm - 11:50 amSOU-SFO
26h 20m1 stop
$796Delta
Find Deal
Thu, Nov 13 - Tue, Nov 25
Delta Logo
1:55 pm - 5:00 pmSFO-SOU
19h 05m1 stop
Delta Logo
8:40 am - 6:09 pmSOU-SFO
41h 29m2 stops
$802Delta
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Sun, Dec 14 - Tue, Dec 23
Delta Logo
1:55 pm - 8:10 amSFO-SOU
34h 15m1 stop
Delta Logo
8:40 am - 11:50 amSOU-SFO
35h 10m1 stop
$803Delta
Find Deal
Wed, Nov 12 - Tue, Nov 18
Delta Logo
12:30 am - 8:05 amSFO-SOU
23h 35m2 stops
Delta Logo
8:40 am - 11:09 pmSOU-SFO
22h 29m2 stops
$806Delta
Find Deal
Sun, Dec 14 - Tue, Dec 23
Delta Logo
7:00 am - 8:10 amSFO-SOU
17h 10m2 stops
Delta Logo
8:40 am - 11:50 amSOU-SFO
35h 10m1 stop
$807Delta
Find Deal
Sun, Dec 14 - Tue, Dec 23
Delta Logo
7:00 am - 8:10 amSFO-SOU
17h 10m2 stops
Delta Logo
5:30 pm - 5:42 pmSOU-SFO
32h 12m2 stops
$817Delta
Find Deal
Thu, Nov 13 - Sat, Nov 22
Delta Logo
1:55 pm - 5:00 pmSFO-SOU
19h 05m1 stop
Delta Logo
5:30 pm - 11:50 amSOU-SFO
26h 20m1 stop
$821Delta
Find Deal
Wed, Nov 12 - Sat, Nov 22
Delta Logo
12:30 am - 8:05 amSFO-SOU
23h 35m2 stops
Delta Logo
5:30 pm - 11:50 amSOU-SFO
26h 20m1 stop
$825Delta
Find Deal
Tue, Dec 16 - Tue, Dec 23
Delta Logo
6:00 am - 8:20 amSFO-SOU
42h 20m2 stops
Delta Logo
8:40 am - 11:50 amSOU-SFO
35h 10m1 stop
$860Delta
Find Deal
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 fly non-stop between San Francisco and Southampton?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from San Francisco to Southampton.

There is just one airline that flies from San Francisco to Southampton direct and that is Aer Lingus. The best round-trip deal found from Aer Lingus for the route is $946.

Good to know

Cheapest flight$475
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 $475 for a one-way ticket and $792 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 1341 reviews
7.1Comfort
8.0Crew
7.4Boarding
6.9Entertainment
6.5Food
Airline reviews

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.

6.0 GoodAnonymous, Oct 2025ORD - DUB
Read more Aer Lingus reviews

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.

Late. Taking off, landing, deplaning. Missed our connection on AerLingus to NYC. Computers down from cyber attack. Put us up for the night. Lost our luggage. Everyone was nice. But it was an awful day.

I liked the front row seats. A lot of leg room. The check-in window needs to be longer

The actual flight experience was great. The handling of my luggage was terrible. First, I had to check in at the airport and wasn’t able to check in online because they booked me with a partner carrier in the U.S. that was incredibly inconvenient. I was also told that I would have to check in again with the partner airline in the U.S., also incredibly inconvenient at a large airport. Second, when I was at the counter, they did not tell me my carryon was too big. I only found that out when I tried to board the plane. I don’t know that it actually was too big though. It’s a standard sized carry on that I’ve never had issue with on any planes before. They assured me my bag would be checked all the way to my final destination. Due to flight from Paris to Dublin being delayed, I was rebooked on a different transatlantic flight to the U.S., which resulted in a different connecting flight to my final destination. My luggage was rerouted and I was assured it would be at my final destination. When I got to Newark, I received multiple phone calls alerting me that my bag was across the airport at a different terminal and that I needed to go pick it up near the baggage carousels. In the Newark airport, every terminal has its own security checkpoint. Leaving any terminal and entering another one requires a security check. At this point, I had to go through security in Paris, then again for US customs and pre-clearance at Dublin, then a third time when I had to change terminals at Newark for my connecting flight home. It was at this point I received the call that I needed to retrieve my bag from literally the opposite end of the airport and go through security A FOURTH TIME. These was no notification that I needed to do this before I went to the gate for my final flight. It took me an hour to go do all this, after I had already been traveling for 19 hours while sick and should have been home already were it not for the delay of my original flight. I retrieved the bag. My carryon became a carryon again and fit just fine on the last plane, by the way. I would also like to mention that my TSA flight information was not included on my ticket, so once again, I had to go to the airline counter to get my ticket corrected and reprinted before I could go through security and try to save myself time. Finally, I have celiac disease and prefer not to eat meat. There was literally no food I could eat on the seven and a half hour flight across the Atlantic. When the flight attendant woke me up for dinner (I would have preferred to sleep), I asked if there were any gluten free options. I was told the only option was chicken. I begrudgingly accepted because it was the only option, hoping anything else in the meal could be eaten. There was plain rice and a few green beans. The side dish was teriyaki vegetables containing gluten. There was a piece of bread, containing gluten. There was a custard, containing gluten. I could eat literally nothing except the very small amount of rice and green beans. When the same flight attendant came around again, while I was sleeping, a sandwich was placed in front of me, again food I could not eat. And this was after I got to the flight to find that my newly assigned seat on my transatlantic flight had been given to someone else! It’s like nobody communicates over there. This airline has the worst logistics of any airline I have ever been on, and I travel frequently. Dear Aer Lingus, DO BETTER.

My flights with Aer Lingus were very good and I will definitely fly with them. Again in future trips to Ireland and Scotland.

Too hot. Asked for an extra glass of water and was ignored. Asked to sit in empty seats that were open because it was so hot and crowded and was denied and the seats were empty the entire flight

Terrible leg room - I’m 5’3” and my knees were touching the seat in front of me. When the person sitting in front of me leaned back, there was about 15 inches of space between my head and the TV screen which made it awkward to view movies. Last year they had decent food, but this year the only tasty item on the trip was dessert.

The flight was delayed leaving Philadelphia due to “catering” and consequently arrived in Dublin some 75 minutes later than scheduled. Consequently this caused me to miss my connecting flight to Glasgow and I had to spend the night in Dublin.

The flight from Cincinnati to Philadelphia was satisfactory and uneventful.

It was truly a horrible flight. We were delayed almost 2 hours. The seats were so tiny, my legs were hurting the entire flight. When i finally made it to Ireland i missed my connecting flight because we left Newark late. I will most likely never fly Aer Lingus again

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

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