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$421+ 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 8/30. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SOU
Mai 3 — Mai 101
So 5/3
So 5/10
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 April 3, 2026.

This Kiwi.com deal was found by Cheapflights users on 3/31. 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.
Mo 6/16:35 pm
BOS
-
SOU
2 stops19h 55m
Multiple Airlines
Mo 6/87:20 pm
SOU
-
BOS
1 stop30h 45m
Multiple Airlines
Deal found 3/31$816
This Kiwi.com deal was found by Cheapflights users on 3/30. 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.
Do 5/1411:30 pm
BOS
-
SOU
1 stop15h 00m
Multiple Airlines
Do 5/219:20 am
SOU
-
BOS
1 stop12h 44m
Multiple Airlines
Deal found 3/30$857
This Kiwi.com deal was found by Cheapflights users on 4/1. 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.
So 5/2410:05 am
BOS
-
SOU
2 stops25h 45m
Multiple Airlines
Fr 5/299:25 am
SOU
-
BOS
1 stop16h 40m
Multiple Airlines
Deal found 4/1$891
This Kiwi.com deal was found by Cheapflights users on 4/1. 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.
Sa 5/2310:05 am
BOS
-
SOU
2 stops25h 45m
Multiple Airlines
Fr 5/299:25 am
SOU
-
BOS
1 stop16h 40m
Multiple Airlines
Deal found 4/1$896
This Kiwi.com deal was found by Cheapflights users on 3/30. 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.
Do 4/2311:30 pm
BOS
-
SOU
1 stop15h 00m
Multiple Airlines
Mi 5/68:00 pm
SOU
-
BOS
2 stops28h 46m
Multiple Airlines
Deal found 3/30$936
This Kiwi.com deal was found by Cheapflights users on 3/29. 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.
Do 8/611:00 pm
BOS
-
SOU
1 stop16h 15m
Multiple Airlines
Sa 8/227:50 am
SOU
-
BOS
2 stops16h 00m
Multiple Airlines
Deal found 3/29$938
This Kiwi.com deal was found by Cheapflights users on 4/1. 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.
Fr 5/226:35 pm
BOS
-
SOU
2 stops19h 55m
Multiple Airlines
Fr 5/299:25 am
SOU
-
BOS
1 stop16h 40m
Multiple Airlines
Deal found 4/1$949
This Expedia deal was found by Cheapflights users on 3/31. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mo 9/215:25 pm
BOS
-
SOU
1 stop10h 15m
Aer Lingus
Di 9/299:15 am
SOU
-
BOS
1 stop10h 40m
Aer Lingus
Deal found 3/31$975

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 April 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$816
(Kiwi.com)

One-way from

$421
(Delta)

Popular in

June

Cheapest in

October

Average price

$619
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. 15% potential increase in price ($108 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 April 3, 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

Sa 5/2

4:35 pm-8:45 am

1 stop11h 10m

Southampton Eastleigh

Sa 5/9

5:20 pm-4:25 pm

1 stop28h 05m

$1,036
Quickest round-trip

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Sa 5/2

4:35 pm-8:45 am

1 stop11h 10m

Southampton Eastleigh

So 5/10

9:15 am-4:25 pm

1 stop12h 10m

$1,040

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Mo 5/4

4:35 pm-8:35 am

1 stop11h 00m

Southampton Eastleigh

Mo 5/11

9:05 am-4:25 pm

1 stop12h 20m

$1,040

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

So 5/3

4:35 pm-8:35 am

1 stop11h 00m

Southampton Eastleigh

Di 5/12

9:05 am-4:25 pm

1 stop12h 20m

$1,040

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Fr 5/1

9:05 am-8:45 am

2 stops18h 40m

Southampton Eastleigh

So 5/10

5:20 pm-1:16 pm

1 stop24h 56m

$1,040

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Do 4/30

12:30 pm-8:35 am

2 stops15h 05m

Southampton Eastleigh

Di 5/19

9:05 am-10:50 pm

2 stops18h 45m

$1,055

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Di 5/12

6:50 pm-4:50 pm

1 stop17h 00m

Southampton Eastleigh

Sa 5/23

5:20 pm-1:10 pm

1 stop24h 50m

$1,097

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Do 5/21

4:35 pm-4:50 pm

1 stop19h 15m

Southampton Eastleigh

Mo 5/25

5:20 pm-1:10 pm

1 stop24h 50m

$1,116

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Do 8/6

4:45 pm-8:45 am

1 stop11h 00m

Southampton Eastleigh

So 8/16

5:30 pm-6:30 pm

1 stop30h 00m

$1,126
Cheapest one-way

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Sa 9/5

8:25 pm-8:35 am

1 stop31h 10m

$473

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

Showing 1-10 of 20 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 April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
JustAirTicketPrice Accuracy-Trust Score*1 star

*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 $311). Flying from Boston to Southampton in June is currently the most expensive (average of $561). 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 April 3, 2026.
Peruse reviews from past customers who have flown with 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.
Aer Lingus
7.2
Good
1,496 reviews

Food

6.6

Comfort

7.2

Boarding

7.4

Entertainment

7.0

Overall

7.2

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

SFO - DUB

The boarding went smoothly, the crew were great and helped me with an extra pillow, the food was good including complementary wine with dinner (economy seating), and I was able to sleep. The flight arrived early which helped with connections. Overall a great experience.
Aer Lingus
7.2
Good
1,496 reviews
Aer Lingus
7.2
Good
1,496 reviews

Food

6.6

Comfort

7.2

Boarding

7.4

Entertainment

7.0

Overall

7.2

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

SFO - DUB

The boarding went smoothly, the crew were great and helped me with an extra pillow, the food was good including complementary wine with dinner (economy seating), and I was able to sleep. The flight arrived early which helped with connections. Overall a great experience.

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 11h 10m. The distance between Boston and Southampton is about 3228 mi.

  • What is the cheapest airline to fly from Boston to Southampton round-trip?

    Our cheapest airline available from Boston to Southampton is Aer Lingus. Our recent data shows that you can find tickets from as low as $698 on this airline.

  • 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 $311). Flying from Boston to Southampton in June is currently the most expensive (average of $561). 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 airline flying from Boston to Southampton

Discover the top airline 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 April 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest$698Average$943FlexibilityNo cancel feeOn-timeN/A

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