BOS - SOU

$349 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 5/5. 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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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$899
Aer Lingus
Tue 8/4Tue 8/11
BOS - SOU • 1 stop
Cheapest one-way
$349
Multiple Airlines
Tue 5/5
BOS - SOU • 3 stops
Top airlines
Cheapest • from $877 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Boston and Southampton. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $937 (round-trip)
Shortest trip • 10h 02m (one-way)
Insights
Insights
Insights
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 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

Tue, Aug 4 - Tue, Aug 11
Aer Lingus Logo
9:15 pm - 4:50 pm
BOS
-
SOU
14h 35m
1 stop
Aer Lingus Logo
9:15 am - 10:00 pm
SOU
-
BOS
17h 45m
1 stop
$899Aer Lingus
Fri, Aug 21 - Mon, Aug 31
Multiple Airlines Logo
11:30 pm - 7:30 pm
BOS
-
SOU
15h 00m
1 stop
Multiple Airlines Logo
7:20 pm - 9:15 pm
SOU
-
BOS
30h 55m
1 stop
$906Multiple Airlines
Wed, Aug 5 - Tue, Aug 11
Aer Lingus Logo
11:30 pm - 4:50 pm
BOS
-
SOU
12h 20m
1 stop
Aer Lingus Logo
9:15 am - 10:00 pm
SOU
-
BOS
17h 45m
1 stop
$916Aer Lingus
Thu, Apr 30 - Tue, May 19
KLM Logo
4:35 pm - 8:35 am
BOS
-
SOU
11h 00m
1 stop
KLM Logo
5:20 pm - 4:25 pm
SOU
-
BOS
28h 05m
1 stop
$933KLM
Thu, Apr 30 - Tue, May 19
Delta Logo
9:05 am - 8:35 am
BOS
-
SOU
18h 30m
2 stops
Delta Logo
9:05 am - 4:25 pm
SOU
-
BOS
12h 20m
1 stop
$937Delta
Thu, Apr 30 - Tue, May 19
Delta Logo
12:30 pm - 8:35 am
BOS
-
SOU
15h 05m
2 stops
Delta Logo
9:05 am - 4:25 pm
SOU
-
BOS
12h 20m
1 stop
$938Delta
Thu, Sep 10 - Sat, Sep 19
Aer Lingus Logo
5:25 pm - 8:40 am
BOS
-
SOU
10h 15m
1 stop
Aer Lingus Logo
9:20 am - 10:00 pm
SOU
-
BOS
17h 40m
1 stop
$943Aer Lingus
Thu, Apr 30 - Tue, May 19
Delta Logo
12:30 pm - 8:35 am
BOS
-
SOU
15h 05m
2 stops
Delta Logo
9:05 am - 10:49 pm
SOU
-
BOS
18h 44m
2 stops
$948Delta
Sun, Jun 7 - Mon, Jun 15
Delta Logo
4:35 pm - 8:35 am
BOS
-
SOU
11h 00m
1 stop
Delta Logo
5:20 pm - 4:35 pm
SOU
-
BOS
28h 15m
1 stop
$962Delta
Sun, Jun 7 - Mon, Jun 15
Delta Logo
4:35 pm - 8:35 am
BOS
-
SOU
11h 00m
1 stop
Delta Logo
5:20 pm - 4:35 pm
SOU
-
BOS
28h 15m
1 stop
$963Delta
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 Aer Lingus ($877) and KLM ($933).

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$349
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 $349 for a one-way ticket and $804 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 $1,104 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 8289 reviews
7.9Comfort
8.5Crew
8.1Boarding
7.8Entertainment
7.2Food
Airline reviews

Perhaps when you’re sitting in 1st class and the crew closes the bathroom for the pilots, there could be a notification other than holding your hands up as a blockade when you get there and you’re told the restrooms are closed please turn around … especially at night when visibility is poor and you’re met by a flight attendants with their arms up

10.0 ExcellentDebra, Mar 2026
PBI - ATL
Read more Delta reviews

Perhaps when you’re sitting in 1st class and the crew closes the bathroom for the pilots, there could be a notification other than holding your hands up as a blockade when you get there and you’re told the restrooms are closed please turn around … especially at night when visibility is poor and you’re met by a flight attendants with their arms up

First class is comfortable. Enjoyed a movie and was able to relax compared to coach.

Loved flying First Class. Very comfortable. The seat was amazing. Enjoyed a movie and was able to relax so much better than in coach.

We landed and sat on the tarmac for 45 minutes because they only have one gate at the airport and there was another plane running late so we had to wait

The WiFi was not working. That made for a long flight.

With Aeromexico it ended up good but with Delta it was bad because we did everything through Delta... Showed up at the Delta terminal... It was the wrong place! Nothing ever told us to go to the Aeromexico terminal. It said "in partnership with Aeromexico" but I was never instructed to check in with them or go to their terminal. We had to haul @$$ running through the airport and almost didn't make it thanks to this poor communication. 👎🏽

Absolutely no communication on why there's a delay and multiple flight time reschedules. I would have canceled the flight and drove back home if I known it was going to be rescheduled 3 or 4 times.

Another late night flight and MORE men belligerently drinking and yelling. I had to move from first to economy because they were so obnoxious and disruptive. Crazy to go from a cozy chair to cardboard when you were supposed to be in first. Delta allows was too much drinking which leads to belligerent behavior.

I was in first class and literally the men behind me were so aggressively loud I moved myself to economy. This has become so common on Delta - people using audio without headphones, and men on 12am / late night flights drinking and yelling to talk to each other which prevents anyone around them from resting. Pretty crazy to have to move from first to economy (poorer service, less comfort...). Wild wild. Looking into other airlines.

Love delta smaller commuter plane so no entertainment and paid wifi on MKE-LGA leg was extremely unreliable and slow

There was a 6h delay with limited updates . When we got to Manchester the bus took ages to get to arrivals and we missed our train, dinner reservation. Basically lost a whole day due to arrivals Lingus!!

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.

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

Information on your arrival and departure airports