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Cheap flights from Boston to London from £318

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 23/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Cheap return flights

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Multiple Airlines Logo
13:00 - 19:40
BOS
-
SOU
26h 40m
2 stops
Multiple Airlines Logo
09:30 - 21:20
SOU
-
BOS
15h 50m
2 stops
£433Multiple Airlines
Thu, 19 Mar - Thu, 26 Mar
Multiple Airlines Logo
10:15 - 19:40
BOS
-
SOU
29h 25m
3 stops
Multiple Airlines Logo
09:30 - 21:20
SOU
-
BOS
15h 50m
2 stops
£436Multiple Airlines
Thu, 19 Mar - Thu, 26 Mar
Aer Lingus Logo
22:20 - 19:40
BOS
-
SOU
17h 20m
1 stop
Aer Lingus Logo
09:30 - 19:55
SOU
-
BOS
14h 25m
1 stop
£467Aer Lingus
Thu, 19 Mar - Thu, 26 Mar
Aer Lingus Logo
18:10 - 08:45
BOS
-
SOU
10h 35m
1 stop
Aer Lingus Logo
09:30 - 19:55
SOU
-
BOS
14h 25m
1 stop
£523Aer Lingus
Fri, 20 Mar - Fri, 27 Mar
Multiple Airlines Logo
05:30 - 19:40
BOS
-
SOU
34h 10m
3 stops
Multiple Airlines Logo
12:00 - 14:10
SOU
-
BOS
30h 10m
3 stops
£548Multiple Airlines
Thu, 19 Mar - Thu, 26 Mar
Multiple Airlines Logo
18:10 - 08:45
BOS
-
SOU
10h 35m
1 stop
Multiple Airlines Logo
12:00 - 18:50
SOU
-
BOS
34h 50m
2 stops
£628Multiple Airlines
Thu, 19 Mar - Thu, 26 Mar
KLM Logo
18:50 - 16:50
BOS
-
SOU
17h 00m
1 stop
KLM Logo
09:15 - 16:33
SOU
-
BOS
12h 18m
1 stop
£693KLM
Tue, 19 May - Sat, 30 May
Delta Logo
09:05 - 08:35
BOS
-
SOU
18h 30m
2 stops
Delta Logo
09:15 - 18:30
SOU
-
BOS
14h 15m
1 stop
£696Delta
Tue, 19 May - Sat, 30 May
Delta Logo
09:05 - 08:35
BOS
-
SOU
18h 30m
2 stops
Delta Logo
09:15 - 18:58
SOU
-
BOS
14h 43m
2 stops
£704Delta
Tue, 19 May - Sat, 30 May
Aer Lingus Logo
20:30 - 08:45
BOS
-
SOU
32h 15m
2 stops
Aer Lingus Logo
09:30 - 19:55
SOU
-
BOS
14h 25m
1 stop
£713Aer Lingus
Fri, 20 Mar - Fri, 27 Mar

Aer Lingus flights from Boston to Southampton

Our best Aer Lingus deals on Boston to Southampton flight tickets
Aer Lingus
19 Mar
BOS22:20Boston Logan Intl
17h 20m
1 stop
SOU19:40Southampton Eastleigh
26 Mar
SOU09:30Southampton Eastleigh
14h 25m
1 stop
BOS19:55Boston Logan Intl
£467
Aer Lingus
20 Mar
BOS18:10Boston Logan Intl
10h 35m
1 stop
SOU08:45Southampton Eastleigh
27 Mar
SOU09:30Southampton Eastleigh
14h 25m
1 stop
BOS19:55Boston Logan Intl
£523
Aer Lingus
9 Apr
BOS17:20Boston Logan Intl
10h 20m
1 stop
SOU08:40Southampton Eastleigh
13 Apr
SOU20:00Southampton Eastleigh
23h 55m
1 stop
BOS14:55Boston Logan Intl
£684

Delta flights from Boston to Southampton

Our best Delta deals on Boston to Southampton flight tickets
Delta
19 May
BOS09:05Boston Logan Intl
18h 30m
2 stops
SOU08:35Southampton Eastleigh
30 May
SOU09:15Southampton Eastleigh
14h 15m
1 stop
BOS18:30Boston Logan Intl
£696
Delta
19 May
BOS09:05Boston Logan Intl
18h 30m
2 stops
SOU08:35Southampton Eastleigh
30 May
SOU09:15Southampton Eastleigh
14h 43m
2 stops
BOS18:58Boston Logan Intl
£704
Delta
8 Jul
BOS20:25Boston Logan Intl
16h 10m
1 stop
SOU17:35Southampton Eastleigh
27 Jul
SOU09:15Southampton Eastleigh
12h 25m
1 stop
BOS16:40Boston Logan Intl
£796

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 4 February 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

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Thu 19/3

13:00-19:40

2 stops26h 40m

Southampton Eastleigh

Thu 26/3

09:30-21:20

2 stops15h 50m

£433

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Thu 19/3

10:15-19:40

3 stops29h 25m

Southampton Eastleigh

Thu 26/3

09:30-21:20

2 stops15h 50m

£436

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Thu 19/3

22:20-19:40

1 stop17h 20m

Southampton Eastleigh

Thu 26/3

09:30-19:55

1 stop14h 25m

£467

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Fri 20/3

18:10-08:45

1 stop10h 35m

Southampton Eastleigh

Fri 27/3

09:30-19:55

1 stop14h 25m

£523

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Thu 19/3

05:30-19:40

3 stops34h 10m

Southampton Eastleigh

Thu 26/3

12:00-14:10

3 stops30h 10m

£548

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Thu 19/3

18:10-08:45

1 stop10h 35m

Southampton Eastleigh

Thu 26/3

12:00-18:50

2 stops34h 50m

£628

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Tue 19/5

18:50-16:50

1 stop17h 00m

Southampton Eastleigh

Sat 30/5

09:15-16:33

1 stop12h 18m

£693

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Tue 19/5

09:05-08:35

2 stops18h 30m

Southampton Eastleigh

Sat 30/5

09:15-18:30

1 stop14h 15m

£696

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Tue 19/5

09:05-08:35

2 stops18h 30m

Southampton Eastleigh

Sat 30/5

09:15-18:58

2 stops14h 43m

£704

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Fri 20/3

20:30-08:45

2 stops32h 15m

Southampton Eastleigh

Fri 27/3

09:30-19:55

1 stop14h 25m

£713

Flights are sorted by cheapest return flights first.

Showing 1-10 of 18 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 KLM are the most popular carriers operating from Boston Logan Intl to Southampton Eastleigh

Which airlines fly to Southampton?

Virgin Atlantic, British Airways and Iberia 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 38% 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

10h 15m

Direct flights

None
The fastest flight from Boston to Southampton takes 10h 15m
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 10h 15m.

  • 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.
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