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Cheap flights from Boston to Southampton from £336

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 15/11. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SOU
4 Sep — 11 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Boston to Southampton

Enter your travel dates to find the best prices.

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 5 August 2026.

Tue 13/1017:25 -
1 stop9h 40m
Wed 21/1012:20 -
2 stops37h 45m
Deal found 4/8£557
Tue 13/1021:15 -
1 stop17h 15m
Wed 21/1009:20 -
1 stop10h 35m
Deal found 4/8£636
Thu 1/1021:15 -
1 stop14h 35m
Sat 17/1009:20 -
1 stop10h 35m
Deal found 2/8£638
Sun 30/817:25 -
1 stop10h 15m
Thu 3/909:20 -
1 stop14h 30m
Deal found 4/8£671
Fri 18/915:35 -
2 stops22h 55m
Fri 25/920:00 -
2 stops27h 07m
Deal found 4/8£684
Mon 31/817:25 -
1 stop10h 15m
Thu 3/909:20 -
1 stop14h 30m
Deal found 4/8£694
Sun 30/805:45 -
2 stops32h 45m
Thu 3/920:00 -
2 stops27h 22m
Deal found 4/8£737

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 5 August 2026.

Round-trip from

£557

One-way from

£336

Popular in

June

Cheapest in

October

Average price

£480
13/10-21/10
  • 13/10-21/10
  • 3 total stops
  • 47h 25m total
  • Boston to Southampton
Search Deals
Delta
  • Delta
  • 16/11
  • 1 total stop
  • 15h 05m total
  • Boston to Southampton
Search Deals
Highest demand for flights based on searches. 24% potential increase in price (£118 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£18 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
Customise 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 858,174 searches. Data last updated 5 August 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 return flight

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Sun 20/9

16:40-16:50

1 stop19h 10m

Southampton Eastleigh

Tue 29/9

09:05-16:35

1 stop12h 30m

£830

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Tue 22/9

19:00-16:50

1 stop16h 50m

Southampton Eastleigh

Mon 28/9

17:20-13:19

1 stop24h 59m

£832
Fastest return journey

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Wed 16/9

16:40-08:35

1 stop10h 55m

Southampton Eastleigh

Fri 25/9

09:05-16:35

1 stop12h 30m

£835

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Tue 6/10

11:20-08:05

2 stops15h 45m

Southampton Eastleigh

Sun 18/10

09:20-18:50

1 stop14h 30m

£835

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Wed 16/9

07:00-08:35

2 stops20h 35m

Southampton Eastleigh

Thu 24/9

09:05-16:35

1 stop12h 30m

£839

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Sat 5/9

17:25-08:35

1 stop10h 10m

Southampton Eastleigh

Mon 14/9

08:55-14:55

3 stops35h 00m

£847

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Tue 18/8

16:45-08:45

1 stop11h 00m

Southampton Eastleigh

Mon 24/8

18:05-16:37

1 stop27h 32m

£871

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Thu 17/9

16:40-08:35

1 stop10h 55m

Southampton Eastleigh

Fri 25/9

09:05-16:35

1 stop12h 30m

£872

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Sun 20/9

16:40-16:50

1 stop19h 10m

Southampton Eastleigh

Sun 27/9

17:20-13:19

1 stop24h 59m

£873

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Sun 30/8

16:45-08:35

1 stop10h 50m

Southampton Eastleigh

Sat 5/9

09:15-13:19

1 stop33h 04m

£878

Flights are sorted by cheapest return flights first.

Deals found on 3/8

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

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 return 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.

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 15h 45m. The distance from Boston to Southampton is about 3228 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • 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 holiday 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.

See more FAQs

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How does Cheapflights help users find flights from Boston to Southampton?

Cheapflights makes it easy to find Boston to Southampton flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Boston to Southampton?

Millions of users choose and trust Cheapflights to book the best flight deals from Boston to Southampton for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Boston to Southampton with no change fees?

Need flexible booking options for your flight to Southampton from Boston? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Boston to Southampton become cheaper?

Not ready to book yet? You can track prices for flights from Boston to Southampton on Cheapflights with our Price Alert feature and get notified when better prices are available.

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