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Cheap flights from Boston to London from $375

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 10/15. 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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Find the cheapest flights from Boston to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
10:05 am - 7:30 pm
BOS
-
SOU
28h 25m
2 stops
Multiple Airlines Logo
3:35 pm - 10:39 pm
SOU
-
BOS
36h 04m
3 stops
$884Multiple Airlines
Wed, Jun 3 - Wed, Jun 10
Multiple Airlines Logo
10:05 am - 7:30 pm
BOS
-
SOU
28h 25m
2 stops
Multiple Airlines Logo
3:35 pm - 9:45 am
SOU
-
BOS
23h 10m
2 stops
$898Multiple Airlines
Wed, Jun 3 - Wed, Jun 10
Multiple Airlines Logo
10:45 am - 7:30 pm
BOS
-
SOU
27h 45m
2 stops
Multiple Airlines Logo
9:20 am - 9:45 am
SOU
-
BOS
29h 25m
3 stops
$1,026Multiple Airlines
Sun, Jun 7 - Sat, Jun 13
Delta Logo
4:45 pm - 8:45 am
BOS
-
SOU
11h 00m
1 stop
Delta Logo
5:20 pm - 1:19 pm
SOU
-
BOS
24h 59m
1 stop
$1,032Delta
Sun, Aug 16 - Wed, Sep 9
Multiple Airlines Logo
5:50 am - 4:50 pm
BOS
-
SOU
30h 00m
3 stops
Multiple Airlines Logo
9:20 am - 9:45 am
SOU
-
BOS
29h 25m
3 stops
$1,035Multiple Airlines
Sun, Jun 7 - Sat, Jun 13
Delta Logo
8:25 pm - 8:45 am
BOS
-
SOU
31h 20m
1 stop
Delta Logo
9:05 am - 4:35 pm
SOU
-
BOS
12h 30m
1 stop
$1,036Delta
Fri, Aug 14 - Wed, Sep 9
Delta Logo
3:00 pm - 5:35 pm
BOS
-
SOU
21h 35m
2 stops
Delta Logo
5:20 pm - 1:19 pm
SOU
-
BOS
24h 59m
1 stop
$1,037Delta
Mon, Aug 17 - Tue, Sep 8
KLM Logo
1:10 pm - 8:35 am
BOS
-
SOU
14h 25m
2 stops
KLM Logo
5:20 pm - 1:15 pm
SOU
-
BOS
24h 55m
1 stop
$1,040KLM
Tue, Oct 6 - Sun, Oct 18
KLM Logo
1:10 pm - 8:35 am
BOS
-
SOU
14h 25m
2 stops
KLM Logo
5:20 pm - 1:15 pm
SOU
-
BOS
24h 55m
1 stop
$1,041KLM
Tue, Oct 6 - Sun, Oct 18
Delta Logo
4:45 pm - 8:45 am
BOS
-
SOU
11h 00m
1 stop
Delta Logo
9:05 am - 10:36 pm
SOU
-
BOS
18h 31m
2 stops
$1,042Delta
Sun, Aug 16 - Tue, Sep 8

Aer Lingus flights from Boston to Southampton

Our best Aer Lingus deals on Boston to Southampton flight tickets
Aer Lingus
May 11
BOS5:25 pmBoston Logan Intl
10h 15m
1 stop
SOU8:40 amSouthampton Eastleigh
May 26
SOU9:20 amSouthampton Eastleigh
14h 30m
1 stop
BOS6:50 pmBoston Logan Intl
$821
Aer Lingus
May 27
BOS5:25 pmBoston Logan Intl
10h 15m
1 stop
SOU8:40 amSouthampton Eastleigh
Jun 7
SOU5:20 pmSouthampton Eastleigh
34h 15m
2 stops
BOS10:35 pmBoston Logan Intl
$1,138
Aer Lingus
Oct 6
BOS6:55 amBoston Logan Intl
20h 10m
2 stops
SOU8:05 amSouthampton Eastleigh
Oct 18
SOU9:20 amSouthampton Eastleigh
27h 37m
2 stops
BOS7:57 amBoston Logan Intl
$1,152

Delta flights from Boston to Southampton

Our best Delta deals on Boston to Southampton flight tickets
Delta
Aug 16
BOS4:45 pmBoston Logan Intl
11h 00m
1 stop
SOU8:45 amSouthampton Eastleigh
Sep 10
SOU5:20 pmSouthampton Eastleigh
24h 59m
1 stop
BOS1:19 pmBoston Logan Intl
$1,032
Delta
Aug 14
BOS8:25 pmBoston Logan Intl
31h 20m
1 stop
SOU8:45 amSouthampton Eastleigh
Sep 10
SOU5:20 pmSouthampton Eastleigh
24h 59m
1 stop
BOS1:19 pmBoston Logan Intl
$1,036
Delta
Aug 17
BOS12:00 pmBoston Logan Intl
15h 45m
2 stops
SOU8:45 amSouthampton Eastleigh
Sep 7
SOU5:20 pmSouthampton Eastleigh
24h 59m
1 stop
BOS1:19 pmBoston Logan Intl
$1,037

momondo Fare Finder

 
Customize 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 832,500 searches. Data last updated May 9, 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 round-trip

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Wed 6/3

10:05 am-7:30 pm

2 stops28h 25m

Southampton Eastleigh

Wed 6/10

3:35 pm-10:39 pm

3 stops36h 04m

$884

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Wed 6/3

10:05 am-7:30 pm

2 stops28h 25m

Southampton Eastleigh

Wed 6/10

3:35 pm-9:45 am

2 stops23h 10m

$898

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Sun 6/7

10:45 am-7:30 pm

2 stops27h 45m

Southampton Eastleigh

Sat 6/13

9:20 am-9:45 am

3 stops29h 25m

$1,026

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Sun 8/16

4:45 pm-8:45 am

1 stop11h 00m

Southampton Eastleigh

Wed 9/9

5:20 pm-1:19 pm

1 stop24h 59m

$1,032

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Sun 6/7

5:50 am-4:50 pm

3 stops30h 00m

Southampton Eastleigh

Sat 6/13

9:20 am-9:45 am

3 stops29h 25m

$1,035

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Fri 8/14

8:25 pm-8:45 am

1 stop31h 20m

Southampton Eastleigh

Wed 9/9

9:05 am-4:35 pm

1 stop12h 30m

$1,036

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Mon 8/17

3:00 pm-5:35 pm

2 stops21h 35m

Southampton Eastleigh

Tue 9/8

5:20 pm-1:19 pm

1 stop24h 59m

$1,037

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Tue 10/6

1:10 pm-8:35 am

2 stops14h 25m

Southampton Eastleigh

Sun 10/18

5:20 pm-1:15 pm

1 stop24h 55m

$1,040

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Tue 10/6

1:10 pm-8:35 am

2 stops14h 25m

Southampton Eastleigh

Sun 10/18

5:20 pm-1:15 pm

1 stop24h 55m

$1,041
Quickest round-trip

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

Sun 8/16

4:45 pm-8:45 am

1 stop11h 00m

Southampton Eastleigh

Tue 9/8

9:05 am-10:36 pm

2 stops18h 31m

$1,042

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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?

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

What airlines fly to Southampton?

British Airways, Delta and American Airlines 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 49% of people opting to fly with this airline when traveling to Southampton. Keep in mind that there are 16 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 round-trip 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 10m

Direct flights

None
The fastest flight from Boston to Southampton takes 10h 10m
There are no direct flights from Boston to Southampton. There are no popular flight routes from Boston to Southampton.
Search flight deals

Frequently asked questions about flying from Boston to Southampton

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

    A flight from Boston Logan Intl to Southampton Eastleigh will travel around 3229.1 mi. Flights usually cover this in 10h 10m, depending on flying conditions and air traffic around both airports.

  • 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 were last updated today.

  • How many operators does momondo search for flights from Boston Logan Intl Airport to Southampton Eastleigh Airport?

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Boston Logan Intl Airport to Southampton Eastleigh Airport.

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

    The necessary travel and health documents for your Southampton Eastleigh Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Boston to Southampton?

Best airlines flying from Boston to Southampton

Compare and see reviews for airlines that fly from Boston to Southampton with momondo
Airline
Rating
Free Cancellation
Price
Aer LingusPriceFrom $698Free CancellationRating
7.3
1,551 reviews
Search Aer Lingus flights

Traveling 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?

momondo provides multiple filters to help you find the best flight to Southampton from Boston. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Of course. momondo tracks the price of Boston to Southampton flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Southampton trip

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