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Cheap flights from Boston to London from £440

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 30/12. 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

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Multiple Airlines Logo
22:40 - 19:20BOS-SOU
15h 40m1 stop
Multiple Airlines Logo
09:30 - 20:55SOU-BOS
16h 25m2 stops
£482Multiple Airlines
Find Deal
Thu, 4 Dec - Sat, 13 Dec
Aer Lingus Logo
17:10 - 08:45BOS-SOU
10h 35m1 stop
Aer Lingus Logo
09:30 - 18:55SOU-BOS
14h 25m1 stop
£506Aer Lingus
Find Deal
Thu, 4 Dec - Sat, 13 Dec
KLM Logo
20:50 - 17:25BOS-SOU
15h 35m1 stop
KLM Logo
09:30 - 18:55SOU-BOS
14h 25m1 stop
£582KLM
Find Deal
Sun, 7 Dec - Sun, 14 Dec
Delta Logo
05:40 - 08:05BOS-SOU
21h 25m2 stops
Delta Logo
09:25 - 19:14SOU-BOS
14h 49m2 stops
£592Delta
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Thu, 4 Dec - Sat, 13 Dec
KLM Logo
20:50 - 17:25BOS-SOU
15h 35m1 stop
KLM Logo
09:25 - 13:20SOU-BOS
32h 55m1 stop
£603KLM
Find Deal
Wed, 3 Dec - Sat, 6 Dec
KLM Logo
13:05 - 08:20BOS-SOU
14h 15m2 stops
KLM Logo
17:30 - 18:55SOU-BOS
30h 25m1 stop
£606KLM
Find Deal
Wed, 3 Dec - Sat, 6 Dec
Delta Logo
16:45 - 08:50BOS-SOU
11h 05m1 stop
Delta Logo
09:20 - 16:30SOU-BOS
12h 10m1 stop
£621Delta
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Sun, 29 Mar - Wed, 1 Apr
Delta Logo
20:45 - 17:00BOS-SOU
15h 15m2 stops
Delta Logo
09:20 - 18:25SOU-BOS
14h 05m1 stop
£625Delta
Find Deal
Sun, 29 Mar - Wed, 1 Apr
British Airways Logo
15:45 - 17:20BOS-SOU
20h 35m2 stops
British Airways Logo
12:25 - 18:59SOU-BOS
11h 34m1 stop
£889British Airways
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Thu, 12 Feb - Tue, 17 Feb
British Airways Logo
14:12 - 16:40BOS-SOU
22h 28m2 stops
British Airways Logo
09:30 - 19:55SOU-BOS
14h 25m1 stop
£908British Airways
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Fri, 13 Mar - Sat, 21 Mar

Aer Lingus flights from Boston to Southampton

Our best Aer Lingus deals on Boston to Southampton flight tickets
Aer Lingus
4 Dec
BOS17:10Boston Logan Intl
10h 35m
1 stop
SOU08:45Southampton Eastleigh
13 Dec
SOU09:30Southampton Eastleigh
14h 25m
1 stop
BOS18:55Boston Logan Intl
£506
Find similar
Aer Lingus
11 Dec
BOS17:10Boston Logan Intl
10h 35m
1 stop
SOU08:45Southampton Eastleigh
18 Dec
SOU20:10Southampton Eastleigh
27h 45m
1 stop
BOS18:55Boston Logan Intl
£631
Find similar
Aer Lingus
11 Dec
BOS17:10Boston Logan Intl
10h 35m
1 stop
SOU08:45Southampton Eastleigh
18 Dec
SOU09:30Southampton Eastleigh
29h 25m
2 stops
BOS09:55Boston Logan Intl
£637
Find similar

KLM flights from Boston to Southampton

Our best KLM deals on Boston to Southampton flight tickets
KLM
7 Dec
BOS20:50Boston Logan Intl
15h 35m
1 stop
SOU17:25Southampton Eastleigh
14 Dec
SOU09:30Southampton Eastleigh
14h 25m
1 stop
BOS18:55Boston Logan Intl
£582
Find similar
KLM
3 Dec
BOS20:50Boston Logan Intl
15h 35m
1 stop
SOU17:25Southampton Eastleigh
6 Dec
SOU09:25Southampton Eastleigh
32h 55m
1 stop
BOS13:20Boston Logan Intl
£603
Find similar
KLM
3 Dec
BOS13:05Boston Logan Intl
14h 15m
2 stops
SOU08:20Southampton Eastleigh
6 Dec
SOU17:30Southampton Eastleigh
30h 25m
1 stop
BOS18:55Boston Logan Intl
£606
Find similar

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 31 October 2025.
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

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Thu 4/12

22:40-19:20

1 stop15h 40m

Southampton Eastleigh

Sat 13/12

09:30-20:55

2 stops16h 25m

£482

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Thu 4/12

17:10-08:45

1 stop10h 35m

Southampton Eastleigh

Sat 13/12

09:30-18:55

1 stop14h 25m

£506

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Sun 7/12

20:50-17:25

1 stop15h 35m

Southampton Eastleigh

Sun 14/12

09:30-18:55

1 stop14h 25m

£582

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Thu 4/12

05:40-08:05

2 stops21h 25m

Southampton Eastleigh

Sat 13/12

09:25-19:14

2 stops14h 49m

£592

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Wed 3/12

20:50-17:25

1 stop15h 35m

Southampton Eastleigh

Sat 6/12

09:25-13:20

1 stop32h 55m

£603

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Wed 3/12

13:05-08:20

2 stops14h 15m

Southampton Eastleigh

Sat 6/12

17:30-18:55

1 stop30h 25m

£606

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Sun 29/3

16:45-08:50

1 stop11h 05m

Southampton Eastleigh

Wed 1/4

09:20-16:30

1 stop12h 10m

£621

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Sun 29/3

20:45-17:00

2 stops15h 15m

Southampton Eastleigh

Wed 1/4

09:20-18:25

1 stop14h 05m

£625

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Thu 12/2

15:45-17:20

2 stops20h 35m

Southampton Eastleigh

Tue 17/2

12:25-18:59

1 stop11h 34m

£889

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Fri 13/3

14:12-16:40

2 stops22h 28m

Southampton Eastleigh

Sat 21/3

09:30-19:55

1 stop14h 25m

£908

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?

Aer Lingus and Delta are the most popular carriers operating from Boston Logan Intl to Southampton Eastleigh

Which airlines fly to Southampton?

British Airways, Virgin Atlantic and Iberia are the top three most popular airlines that fly to Southampton from Boston according to our data. British Airways is the first choice among our users, with 47% of people opting to fly with this airline when travelling to Southampton. Keep in mind that there are 8 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

Direct flights

None
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.

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