BOS - SOU

$379 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 10/15. 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 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
$903
Multiple Airlines
Thu 7/9Sat 7/18
BOS - SOU • 1 stop
Cheapest one-way
$379
Multiple Airlines
Thu 10/15
BOS - SOU • 3 stops
Top airlines
KLM
Cheapest • from $1,036 (round-trip)
Aer Lingus
Best reviews • 7.3 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
Dublin (DUB)
Cheapest • Avg $881 (round-trip)
Amsterdam (AMS)
Shortest trip • 10h 00m (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

Thu, Jul 9 - Sat, Jul 18
Multiple Airlines Logo
11:35 pm - 7:40 pm
BOS
-
SOU
15h 05m
1 stop
Multiple Airlines Logo
7:50 am - 9:45 pm
SOU
-
BOS
42h 55m
2 stops
$903Multiple Airlines
Tue, Jun 9 - Tue, Jun 16
Multiple Airlines Logo
5:00 pm - 7:30 pm
BOS
-
SOU
21h 30m
2 stops
Multiple Airlines Logo
8:00 pm - 4:08 pm
SOU
-
BOS
25h 08m
2 stops
$907Multiple Airlines
Mon, Jun 1 - Wed, Jun 10
Multiple Airlines Logo
10:05 am - 7:30 pm
BOS
-
SOU
28h 25m
2 stops
Multiple Airlines Logo
3:35 pm - 9:45 am
SOU
-
BOS
23h 10m
2 stops
$910Multiple Airlines
Mon, Jun 1 - Wed, Jun 10
Multiple Airlines Logo
5:50 am - 7:30 pm
BOS
-
SOU
32h 40m
3 stops
Multiple Airlines Logo
3:35 pm - 2:41 pm
SOU
-
BOS
28h 06m
3 stops
$913Multiple Airlines
Mon, Jun 1 - Wed, Jun 10
Multiple Airlines Logo
5:50 am - 7:30 pm
BOS
-
SOU
32h 40m
3 stops
Multiple Airlines Logo
3:35 pm - 9:45 am
SOU
-
BOS
23h 10m
2 stops
$927Multiple Airlines
Thu, Jun 11 - Thu, Jun 18
Multiple Airlines Logo
5:00 pm - 7:30 pm
BOS
-
SOU
21h 30m
2 stops
Multiple Airlines Logo
9:20 am - 7:55 pm
SOU
-
BOS
39h 35m
2 stops
$929Multiple Airlines
Tue, Jun 9 - Tue, Jun 16
Multiple Airlines Logo
10:45 am - 7:30 pm
BOS
-
SOU
27h 45m
2 stops
Multiple Airlines Logo
8:00 pm - 5:59 pm
SOU
-
BOS
26h 59m
2 stops
$965Multiple Airlines
Tue, Jun 9 - Tue, Jun 16
Multiple Airlines Logo
12:30 pm - 7:30 pm
BOS
-
SOU
26h 00m
3 stops
Multiple Airlines Logo
6:10 pm - 5:35 pm
SOU
-
BOS
28h 25m
3 stops
$973Multiple Airlines
Thu, Jul 9 - Sun, Jul 19
Multiple Airlines Logo
11:35 pm - 7:40 pm
BOS
-
SOU
15h 05m
1 stop
Multiple Airlines Logo
8:25 am - 9:45 pm
SOU
-
BOS
18h 20m
2 stops
$975Multiple Airlines
Thu, Jun 11 - Thu, Jun 18
Multiple Airlines Logo
10:05 am - 7:30 pm
BOS
-
SOU
28h 25m
2 stops
Multiple Airlines Logo
9:05 am - 8:55 pm
SOU
-
BOS
40h 50m
3 stops
$976Multiple Airlines
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 KLM ($1,036) and Aer Lingus ($1,073).

Find deals

Good to know

Cheapest flight$379
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 $379 for a one-way ticket and $903 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.

  • 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 airline 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.
7.3
Aer LingusOverall score based on 1536 reviews
7.4Boarding
7.0Entertainment
6.6Food
8.1Crew
7.2Comfort
Airline reviews

OK overall. Flight was delayed Crew on flight was good

6.0 GoodAnonymous, Apr 2026
ORD - SFO
Read more Aer Lingus reviews

OK overall. Flight was delayed Crew on flight was good

Late late late. Delayed and arrived an hour late for a 1 hour 45 minute connection. Every time. Poor record for this company. I try to fly any other carrier first.

This was the smoothest flight I've ever taken with any airline, including Aer Lingus. Typically, there are moments when I feel afraid, but from take off (miraculously seamless!) to cruise, to landing this was a perfect flight. Thank you!

Poor. Plane left EWR late hence missed connecting flight in Dublin. No pro active info from flight staff on connection, only when probed a couple of lies on where we would dock, and on lilelyhood catching connecting flight. Lies as they will have known our EWR-DUB would be parked furthest away from the transit spit - lying it would be next to the AMS flight.

The crew was friendly. The plane was comfortable. In-flight wifi didn't work well at all. The ride was quite turbulent but understandable given the weather.

I flew economy class. Seats were very good and the crew was excellent

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

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

Information on your arrival and departure airports

Boston (BOS)
Southampton (SOU)