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Cheap flights from Boston to Southampton from £270

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 6/10. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SOU
16 Oct — 23 Oct1
1 adult
1 adult, Economy

Cheap 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 16 September 2025.

Round-trip from

£382

One-way from

£270

Popular in

June

Cheapest in

January

Average price

£419
Aer Lingus
  • Aer Lingus
  • 30/10-6/11
  • 2 total stops
  • 25h 00m total
  • Boston to Southampton
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Aer Lingus
  • Aer Lingus
  • 6/10
  • 1 total stop
  • 9h 45m total
  • Boston to Southampton
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£57 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).
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Average for round-trip flights in September 2025
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Find 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 16 September 2025.

Thu 30/1018:10BOS - SOU
1 stop10h 35mAer Lingus
Thu 6/1109:30SOU - BOS
1 stop14h 25mAer Lingus
Deal found 15/9£382
Thu 30/1018:10BOS - SOU
1 stop10h 35mMultiple Airlines
Thu 6/1120:10SOU - BOS
2 stops53h 45mMultiple Airlines
Deal found 15/9£476
Sun 23/1119:10BOS - SOU
1 stop32h 00mDelta
Tue 2/1217:30SOU - BOS
1 stop24h 50mDelta
Deal found 15/9£504
Sun 23/1120:50BOS - SOU
1 stop15h 35mDelta
Mon 1/1218:05SOU - BOS
1 stop24h 15mDelta
Deal found 15/9£522
Thu 30/1013:05BOS - SOU
2 stops15h 00mVirgin Atlantic
Thu 6/1108:50SOU - BOS
2 stops17h 25mVirgin Atlantic
Deal found 15/9£530
Mon 24/1109:59BOS - SOU
2 stops17h 11mDelta
Tue 2/1208:40SOU - BOS
2 stops16h 20mDelta
Deal found 15/9£533
Thu 30/1005:34BOS - SOU
2 stops22h 31mDelta
Thu 6/1108:50SOU - BOS
2 stops18h 13mDelta
Deal found 15/9£555
Fri 21/1120:59BOS - SOU
2 stops30h 51mDelta
Tue 2/1217:30SOU - BOS
1 stop24h 50mDelta
Deal found 15/9£556

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 16 September 2025.
Use the filters below to find and compare flights from Boston to Southampton that are best for you.

Fly from

Boston

Fly to

Southampton

Route

Depart

Return

Price

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Thu 30/10

18:10-08:45

1 stop10h 35m

Southampton Eastleigh

Thu 6/11

09:30-18:55

1 stop14h 25m

£382

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Thu 30/10

18:10-08:45

1 stop10h 35m

Southampton Eastleigh

Thu 6/11

20:10-20:55

2 stops53h 45m

£476

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Tue 25/11

19:10-08:20

1 stop32h 10m

Southampton Eastleigh

Tue 2/12

17:30-18:55

1 stop30h 25m

£504

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Sun 23/11

19:10-08:10

1 stop32h 00m

Southampton Eastleigh

Tue 2/12

17:30-13:20

1 stop24h 50m

£504

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Sun 23/11

20:50-17:25

1 stop15h 35m

Southampton Eastleigh

Mon 1/12

18:05-13:20

1 stop24h 15m

£522

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Tue 25/11

09:59-08:10

2 stops17h 11m

Southampton Eastleigh

Mon 1/12

18:05-13:20

1 stop24h 15m

£525

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Mon 24/11

13:00-08:10

2 stops14h 10m

Southampton Eastleigh

Mon 1/12

18:05-13:20

1 stop24h 15m

£525

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Thu 30/10

13:05-08:05

2 stops15h 00m

Southampton Eastleigh

Thu 6/11

08:50-21:15

2 stops17h 25m

£530

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Mon 6/10

17:30-08:15

1 stop9h 45m

£270

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Thu 9/10

12:20-08:40

2 stops15h 20m

£286

Flights are sorted by cheapest return flights first.

Deals found on 13/9

Showing 1-10 of 12 results
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.

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, September is the cheapest month in which you can book a flight from Boston to Southampton (average of £203). Flying from Boston to Southampton in November is currently the most expensive (average of £262). 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.

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 10h 35m. 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.

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

    Currently, September is the cheapest month in which you can book a flight from Boston to Southampton (average of £203). Flying from Boston to Southampton in November is currently the most expensive (average of £262). 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

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Alternative routes for Boston to Southampton

See prices for flight routes from nearby airports that may be better suited for you.
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Fly with Cheapflights

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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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