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Cheap flights from Boston to London from £297

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to London departing on 15/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags
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Cheap return flights

Enter your travel dates to find the best prices.
Aer Lingus Logo
17:25 - 08:40
BOS
-
SOU
10h 15m
1 stop
Aer Lingus Logo
09:20 - 22:00
SOU
-
BOS
17h 40m
1 stop
£652Aer Lingus
Sun, 3 May - Sun, 10 May
Multiple Airlines Logo
20:50 - 19:30
BOS
-
SOU
17h 40m
2 stops
Multiple Airlines Logo
20:00 - 18:50
SOU
-
BOS
27h 50m
2 stops
£668Multiple Airlines
Thu, 7 May - Thu, 14 May
Aer Lingus Logo
23:30 - 16:50
BOS
-
SOU
12h 20m
1 stop
Aer Lingus Logo
09:20 - 18:50
SOU
-
BOS
14h 30m
1 stop
£694Aer Lingus
Thu, 7 May - Thu, 14 May
Multiple Airlines Logo
17:25 - 19:30
BOS
-
SOU
21h 05m
1 stop
Multiple Airlines Logo
09:25 - 21:05
SOU
-
BOS
16h 40m
2 stops
£703Multiple Airlines
Thu, 7 May - Thu, 14 May
Multiple Airlines Logo
20:50 - 19:30
BOS
-
SOU
17h 40m
2 stops
Multiple Airlines Logo
17:20 - 18:50
SOU
-
BOS
30h 30m
3 stops
£727Multiple Airlines
Thu, 7 May - Thu, 14 May
Multiple Airlines Logo
17:25 - 08:40
BOS
-
SOU
10h 15m
1 stop
Multiple Airlines Logo
20:00 - 21:05
SOU
-
BOS
54h 05m
2 stops
£744Multiple Airlines
Sun, 3 May - Sun, 17 May
Delta Logo
16:35 - 08:35
BOS
-
SOU
11h 00m
1 stop
Delta Logo
09:05 - 23:27
SOU
-
BOS
19h 22m
2 stops
£749Delta
Mon, 20 Apr - Mon, 27 Apr
Delta Logo
09:05 - 08:35
BOS
-
SOU
18h 30m
2 stops
Delta Logo
09:05 - 23:27
SOU
-
BOS
19h 22m
2 stops
£752Delta
Mon, 20 Apr - Mon, 27 Apr
Delta Logo
20:25 - 16:50
BOS
-
SOU
15h 25m
1 stop
Delta Logo
17:20 - 13:10
SOU
-
BOS
24h 50m
1 stop
£760Delta
Sun, 3 May - Thu, 21 May
Delta Logo
05:50 - 08:35
BOS
-
SOU
21h 45m
2 stops
Delta Logo
09:05 - 16:25
SOU
-
BOS
12h 20m
1 stop
£763Delta
Sun, 3 May - Thu, 21 May

KLM flights from Boston to Southampton

Our best KLM deals on Boston to Southampton flight tickets
KLM
6 Aug
BOS16:45Boston Logan Intl
11h 00m
1 stop
SOU08:45Southampton Eastleigh
16 Aug
SOU17:30Southampton Eastleigh
30h 00m
1 stop
BOS18:30Boston Logan Intl
£847
KLM
6 Aug
BOS13:35Boston Logan Intl
14h 10m
2 stops
SOU08:45Southampton Eastleigh
16 Aug
SOU17:30Southampton Eastleigh
30h 00m
1 stop
BOS18:30Boston Logan Intl
£850
KLM
6 Aug
BOS16:45Boston Logan Intl
19h 50m
1 stop
SOU17:35Southampton Eastleigh
16 Aug
SOU17:30Southampton Eastleigh
30h 00m
1 stop
BOS18:30Boston Logan Intl
£884

Aer Lingus flights from Boston to Southampton

Our best Aer Lingus deals on Boston to Southampton flight tickets
Aer Lingus
3 May
BOS17:25Boston Logan Intl
10h 15m
1 stop
SOU08:40Southampton Eastleigh
10 May
SOU09:20Southampton Eastleigh
17h 40m
1 stop
BOS22:00Boston Logan Intl
£652
Aer Lingus
7 May
BOS23:30Boston Logan Intl
12h 20m
1 stop
SOU16:50Southampton Eastleigh
14 May
SOU09:20Southampton Eastleigh
14h 30m
1 stop
BOS18:50Boston Logan Intl
£694
Aer Lingus
3 May
BOS11:40Boston Logan Intl
16h 00m
2 stops
SOU08:40Southampton Eastleigh
10 May
SOU09:20Southampton Eastleigh
19h 39m
2 stops
BOS23:59Boston Logan Intl
£804

momondo 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, momondo users made 279,928 searches. Data last updated 24 March 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 3/5

17:25-08:40

1 stop10h 15m

Southampton Eastleigh

Sun 10/5

09:20-22:00

1 stop17h 40m

£652

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Thu 7/5

20:50-19:30

2 stops17h 40m

Southampton Eastleigh

Thu 14/5

20:00-18:50

2 stops27h 50m

£668
Fastest return journey

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Thu 7/5

23:30-16:50

1 stop12h 20m

Southampton Eastleigh

Thu 14/5

09:20-18:50

1 stop14h 30m

£694

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Thu 7/5

17:25-19:30

1 stop21h 05m

Southampton Eastleigh

Thu 14/5

09:25-21:05

2 stops16h 40m

£703

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Thu 7/5

20:50-19:30

2 stops17h 40m

Southampton Eastleigh

Thu 14/5

17:20-18:50

3 stops30h 30m

£727

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Sun 3/5

17:25-08:40

1 stop10h 15m

Southampton Eastleigh

Sun 17/5

20:00-21:05

2 stops54h 05m

£744

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Mon 20/4

16:35-08:35

1 stop11h 00m

Southampton Eastleigh

Mon 27/4

09:05-23:27

2 stops19h 22m

£749

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Mon 20/4

09:05-08:35

2 stops18h 30m

Southampton Eastleigh

Mon 27/4

09:05-23:27

2 stops19h 22m

£752

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Sun 3/5

20:25-16:50

1 stop15h 25m

Southampton Eastleigh

Thu 21/5

17:20-13:10

1 stop24h 50m

£760

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Sun 3/5

05:50-08:35

2 stops21h 45m

Southampton Eastleigh

Thu 21/5

09:05-16:25

1 stop12h 20m

£763

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to London from

How to get the cheapest flight ticket from Boston to Southampton

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Boston Logan Intl to Southampton Eastleigh?

KLM is the most popular carrier operating from Boston Logan Intl to Southampton Eastleigh

Which airlines fly to Southampton?

Virgin Atlantic, British Airways and JetBlue are the top three most popular airlines that fly to Southampton from Boston according to our data. Virgin Atlantic is the first choice among our users, with 40% of people opting to fly with this airline when travelling to Southampton. Keep in mind that there are 9 different airlines that fly to Southampton on a routine basis, so you have a few additional options to choose from.

When to book flights from Boston to Southampton

Are you open to changing your travel dates? Check out the ideal times to fly from Boston to Southampton according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Boston to Southampton (BOS to SOU) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to Southampton

Fastest flight time

9h 35m

Direct flights

None
The fastest flight from Boston to Southampton takes 9h 35m
There are no direct flights from Boston to Southampton. There are no popular flight routes from Boston to Southampton.
Search flight deals

  • How far is Boston Logan Intl to Southampton Eastleigh by plane?

    Southampton Eastleigh is 3229.1 mi away from Boston Logan Intl. In terms of flight time, this usually takes a little over 9h 35m.

  • When did momondo last update prices for flights from Boston Logan Intl Airport to Southampton Eastleigh Airport?

    Prices for flights from Boston Logan Intl Airport to Southampton Eastleigh Airport are updated daily.

  • How old do you have to be to fly from Boston Logan Intl Airport to Southampton Eastleigh Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Boston Logan Intl Airport to Southampton Eastleigh Airport.

  • What documentation or ID do you need to fly to Southampton Eastleigh Airport?

    The travel and health documents required for your trip to Southampton Eastleigh Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Southampton Eastleigh Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Portsmouth

Why use momondo?

Why should I use momondo to find a flight deal from Boston to Southampton?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Boston to Southampton. momondo saves you time and could save you money on your trip.

Can I find flights from Boston to Southampton with flexible booking policies on momondo?

momondo does allow users to show only those flights to Southampton from Boston which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Boston to Southampton?

Once you have performed a search for Boston to Southampton flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Boston to Southampton right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Boston to Southampton now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Southampton and let you know when they change.

An easier way to manage your Southampton trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
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