BOS - SOU

$427 Find Cheap Flights from Boston 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 Boston to Southampton departing on 2/3. 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 Boston 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 Boston to Southampton, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$759
Delta
Fri 5/1Tue 5/5
BOS - SOU • 1 stop
Cheapest one-way
$427
Delta
Tue 2/3
BOS - SOU • 1 stop
Top airlines
Delta
Cheapest • from $759 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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Booking Insights
Flight Deals

Cheap Flights from Boston to Southampton (BOS-SOU)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boston 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 Boston to Southampton

Fri, May 1 - Tue, May 5
Delta Logo
8:25 pm - 4:50 pm
BOS
-
SOU
15h 25m
1 stop
Delta Logo
9:05 am - 4:33 pm
SOU
-
BOS
12h 28m
1 stop
$759Delta
Fri, May 1 - Tue, May 5
Delta Logo
8:25 pm - 4:50 pm
BOS
-
SOU
15h 25m
1 stop
Delta Logo
9:05 am - 11:02 pm
SOU
-
BOS
18h 57m
2 stops
$769Delta
Wed, Apr 1 - Mon, Apr 6
Aer Lingus Logo
9:15 pm - 4:35 pm
BOS
-
SOU
14h 20m
1 stop
Aer Lingus Logo
8:00 pm - 6:50 pm
SOU
-
BOS
27h 50m
1 stop
$912Aer Lingus
Thu, Mar 26 - Mon, Mar 30
Aer Lingus Logo
6:10 pm - 8:45 am
BOS
-
SOU
10h 35m
1 stop
Aer Lingus Logo
8:00 pm - 3:05 pm
SOU
-
BOS
24h 05m
1 stop
$921Aer Lingus
Sat, Apr 4 - Wed, Apr 8
Aer Lingus Logo
9:15 pm - 8:40 am
BOS
-
SOU
30h 25m
1 stop
Aer Lingus Logo
9:10 am - 3:05 pm
SOU
-
BOS
10h 55m
1 stop
$966Aer Lingus
Fri, Jul 17 - Thu, Jul 30
KLM Logo
8:25 pm - 8:45 am
BOS
-
SOU
31h 20m
1 stop
KLM Logo
6:05 pm - 6:30 pm
SOU
-
BOS
29h 25m
1 stop
$984KLM
Sat, May 2 - Wed, May 6
Delta Logo
4:35 pm - 8:45 am
BOS
-
SOU
11h 10m
1 stop
Delta Logo
9:05 am - 6:30 pm
SOU
-
BOS
14h 25m
1 stop
$1,020Delta
Sat, May 2 - Tue, May 5
Delta Logo
4:35 pm - 8:45 am
BOS
-
SOU
11h 10m
1 stop
Delta Logo
9:05 am - 7:38 pm
SOU
-
BOS
15h 33m
2 stops
$1,030Delta
Mon, Jun 8 - Mon, Jun 15
Aer Lingus Logo
11:30 pm - 7:30 pm
BOS
-
SOU
15h 00m
1 stop
Aer Lingus Logo
8:00 pm - 6:50 pm
SOU
-
BOS
27h 50m
1 stop
$1,037Aer Lingus
Fri, Jul 17 - Thu, Jul 30
Aer Lingus Logo
5:45 pm - 7:30 pm
BOS
-
SOU
44h 45m
2 stops
Aer Lingus Logo
9:10 am - 2:55 pm
SOU
-
BOS
10h 45m
1 stop
$1,047Aer Lingus
Booking Insights

KAYAK's insights & trends for Boston to Southampton flights

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

Which airlines provide the cheapest flights from Boston 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 Boston to Southampton were found on Delta ($759) and Aer Lingus ($912).

Which airlines fly non-stop between Boston 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 Boston to Southampton.

There is just one airline that flies from Boston to Southampton direct and that is Delta. The best round-trip deal found from Delta for the route is $515.

Good to know

Cheapest flight$427
Flight from Boston to Southampton

When to book flights from Boston to Southampton

Are your dates flexible? Find out the best times to travel from Boston 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 Boston to Southampton

  • What is the cheapest flight from Boston to Southampton?

    In the last 3 days, the lowest price for a flight from Boston to Southampton was $427 for a one-way ticket and $759 for a round-trip.

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

    Yes

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

    When flying out of Boston you will be using Boston Logan Intl. You will be landing at Southampton, also known as Southampton Eastleigh.

  • Which aircraft models fly most regularly from Boston to Southampton?

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

  • Which airline alliances offer flights from Boston to Southampton?

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

  • Which is the best airline for flights from Boston to Southampton, Delta or Aer Lingus?

    The two airlines most popular with KAYAK users for flights from Boston to Southampton are Delta and Aer Lingus. With an average price for the route of $1,056 and an overall rating of 7.9, Delta is the most popular choice. Aer Lingus is also a great choice for the route, with an average price of $943 and an overall rating of 7.2.

  • How does KAYAK find such low prices on flights from Boston 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 Boston to Southampton.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Southampton from Boston 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 Boston 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 Boston with another airline. Booking your flights between Boston 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 Boston 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 Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Boston to Southampton

 
See real verified KAYAK customer reviews for airlines flying from Boston 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 Boston 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.
7.9
DeltaOverall score based on 8127 reviews
7.9Comfort
8.5Crew
8.1Boarding
7.2Food
7.8Entertainment
Airline reviews

Timing, quality of service, promptness and courtesy of the staff

10.0 ExcellentAjai, Jan 2026
DFW - ATL
Read more Delta reviews

Timing, quality of service, promptness and courtesy of the staff

It was last minute due to weather - considering - it was amazing! Good smiles, friendly staff and they were making sure we knew what was going on when and where.

delta last minute gave me a boarding pass for a different flight with no confirmation that they were changing it

The flight was comfortable and uneventful, which is what I desire

The service from the flight attendants were of supreme quality. They greeted and treated everyone with a wide smile. This is totally absent nowadays. Kudos to them!!!!

Excellent flight and got us around tough weather. Only issue was seat TV did not work and crew tried to reboot.

Very large passenger too space from my own seat. Arm board couldn’t be lowered because of his size. It wads very uncomfortable trip, as the flight was full couldn’t move anywhere having back pain because of the position in which I was the entire flight.

was sitting in the jet bridge for 10 minutes in -20 degree weather waiting for my bag

Outdated equipment in disrepair, wifi inoperable. Broken seats, taped air vents, generally poor condition, the 717 showed its age and lack of upkeep.

My flight out of Baton Rouge to Atlanta was delayed by a half hour. This got us into Atlanta airport 30 minutes late. I ran through the airport to get to my connecting flight. As I approached the boarding gate, I saw the boarding door was still open and a passenger was being checked in. But when I got to the gate, the boarding agent told me they had already given away my seat and there were no empty seats on that flight. So I had to take a later flight. That has never happened to me before. Very frustrating.

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.

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

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

Everything you need to know for your flight from Boston to Southampton

Information on your arrival and departure airports