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$349+ Cheap flights from Boston (BOS) to Southampton (SOU)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/5. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SOU
Apr 14 — Apr 211
Tue 4/14
Tue 4/21
1 adult, Economy
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Cheap flight deals from Boston to Southampton

Cheapest flights from Boston to Southampton
Explore the most affordable flight options available from Boston to Southampton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 15, 2026.

This KLM deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/134:35 pm
BOS
-
SOU
1 stop11h 00m
KLM
Wed 5/205:20 pm
SOU
-
BOS
1 stop28h 05m
KLM
Deal found 3/10$833
This Delta deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/139:05 am
BOS
-
SOU
2 stops18h 30m
Delta
Wed 5/209:05 am
SOU
-
BOS
1 stop14h 25m
Delta
Deal found 3/10$837
This Delta deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/1710:00 am
BOS
-
SOU
2 stops27h 00m
Delta
Tue 3/245:35 pm
SOU
-
BOS
1 stop24h 45m
Delta
Deal found 3/13$873
This KLM deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/64:45 pm
BOS
-
SOU
1 stop10h 50m
KLM
Sun 10/185:20 pm
SOU
-
BOS
1 stop28h 16m
KLM
Deal found 3/11$882
This Delta deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/3012:30 pm
BOS
-
SOU
2 stops15h 05m
Delta
Tue 5/199:05 am
SOU
-
BOS
1 stop12h 20m
Delta
Deal found 3/11$886
This Trip.com deal was found by Cheapflights users on 3/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2911:30 pm
BOS
-
SOU
1 stop15h 00m
Aer Lingus
Sun 8/169:20 am
SOU
-
BOS
1 stop17h 40m
Aer Lingus
Deal found 3/11$894
This Kiwi.com deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2111:30 pm
BOS
-
SOU
1 stop15h 00m
Multiple Airlines
Mon 8/317:20 pm
SOU
-
BOS
1 stop30h 55m
Multiple Airlines
Deal found 3/14$906

Find flight deals from Boston to Southampton

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Southampton (SOU). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 15, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$833
(KLM)

One-way from

$349
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$579
Provider with most accurate pricing for Boston Logan Intl-Southampton Eastleigh flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boston Logan Intl-Southampton Eastleigh flights.
Search Deals
From Boston Logan Intl to Southampton Eastleigh
Search Deals
One-way flight from Boston Logan Intl to Southampton Eastleigh
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($102 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boston to Southampton that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 15, 2026.
Use the filters below to find and compare flights from Boston to Southampton that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Wed 5/13

9:05 am-8:35 am

2 stops18h 30m

Southampton Eastleigh

Wed 5/20

9:05 am-6:30 pm

1 stop14h 25m

$837
Quickest round-trip

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Thu 4/30

12:30 pm-8:35 am

2 stops15h 05m

Southampton Eastleigh

Tue 5/19

9:05 am-4:25 pm

1 stop12h 20m

$887

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Sun 6/7

4:35 pm-8:35 am

1 stop11h 00m

Southampton Eastleigh

Tue 6/16

9:05 am-10:20 pm

2 stops18h 15m

$972

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Thu 8/6

4:45 pm-8:45 am

1 stop11h 00m

Southampton Eastleigh

Sun 8/16

5:30 pm-6:30 pm

1 stop30h 00m

$1,003

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Sun 5/24

8:25 pm-8:35 am

1 stop31h 10m

Southampton Eastleigh

Sun 5/31

5:20 pm-6:30 pm

1 stop30h 10m

$1,003

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Tue 6/9

9:55 am-8:35 am

2 stops17h 40m

Southampton Eastleigh

Sun 6/14

5:20 pm-1:05 pm

1 stop24h 45m

$1,008
Cheapest one-way

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Tue 5/5

10:45 pm-8:45 am

3 stops53h 00m

$349

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Wed 9/2

4:40 pm-4:50 pm

1 stop19h 10m

$383

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Wed 5/13

8:50 pm-8:45 am

3 stops30h 55m

$405

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Wed 5/13

8:15 pm-4:50 pm

2 stops15h 35m

$419

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/13

Showing 1-10 of 17 resultsSorted by cheapest first
1
2

Compare providers for flights from Boston to Southampton

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boston to Southampton in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Boston-Southampton flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boston-Southampton flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boston-Southampton flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boston-Southampton flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boston-Southampton flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Boston to Southampton

Have a flexible travel schedule? Discover the best time to fly to Southampton from Boston with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from Boston to Southampton?

Currently, August is the cheapest month in which you can book a flight from Boston to Southampton (average of $308). Flying from Boston to Southampton in June is currently the most expensive (average of $535). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Southampton

Get insights into the airlines that provide service to Southampton. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Southampton. Reviews last updated March 15, 2026.
Peruse reviews from past customers who have flown with Delta and Aer Lingus from Boston to Southampton to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,292 reviews

Entertainment

7.8

Boarding

8.1

Crew

8.5

Overall

7.9

Comfort

7.9

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,292 reviews
Delta
7.9
Good
8,292 reviews

Entertainment

7.8

Boarding

8.1

Crew

8.5

Overall

7.9

Comfort

7.9

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Aer Lingus
7.2
Good
1,476 reviews
Delta
7.9
Good
8,292 reviews

Entertainment

7.8

Boarding

8.1

Crew

8.5

Overall

7.9

Comfort

7.9

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Boston to Southampton. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Boston to Southampton?

    Departing from Boston to Southampton will take you 18h 30m. The distance between Boston and Southampton is about 3228 mi.

  • What are the cheapest airlines flying from Boston to Southampton round-trip?

    Our cheapest airline available from Boston to Southampton is Delta. Our recent data shows that you can find tickets from as low as $515 on this airline. An additional option worth looking into is Aer Lingus, starting at $698.

  • Can I find deals for flights from Boston to Southampton that include hotel bookings?

    Yes. In addition to deals on Boston to Southampton flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Boston to Southampton?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to Southampton.

  • Can I find deals for business class flights from Boston to Southampton?

    Yes. Cheapflights offers flight deals from Boston to Southampton by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Boston to Southampton?

    Currently, August is the cheapest month in which you can book a flight from Boston to Southampton (average of $308). Flying from Boston to Southampton in June is currently the most expensive (average of $535). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 2 airlines flying from Boston to Southampton

Discover the top 2 airlines that operate flights from Boston to Southampton. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 15, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$515Average$1,104FlexibilityNo cancel feeOn-timeN/A
Aer LingusCheapest$698Average$943FlexibilityNo cancel feeOn-timeN/A

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