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Cheap flights from Boston to London from $354

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 1/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Boston to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
5:25 pm - 8:05 amBOS  Boston Logan Intl-SOU Southampton Eastleigh
9h 40m1 stop Dublin
Multiple Airlines Logo
12:20 pm - 9:05 pmSOU  Southampton Eastleigh-BOS Boston Logan Intl
37h 45m2 stops Manchester Barcelona-El Prat
$749Multiple Airlines
Tue, Oct 13 - Wed, Oct 21
Aer Lingus Logo
5:25 pm - 8:40 amBOS  Boston Logan Intl-SOU Southampton Eastleigh
10h 15m1 stop Dublin
Aer Lingus Logo
9:20 am - 6:50 pmSOU  Southampton Eastleigh-BOS Boston Logan Intl
14h 30m1 stop Dublin
$831Aer Lingus
Mon, Sep 28 - Sun, Oct 11
Multiple Airlines Logo
10:40 am - 4:50 pmBOS  Boston Logan Intl-SOU Southampton Eastleigh
25h 10m2 stops Montreal Pierre Elliott Trudeau Intl Dublin
Multiple Airlines Logo
8:00 pm - 2:41 pmSOU  Southampton Eastleigh-BOS Boston Logan Intl
23h 41m2 stops Dublin Montreal Pierre Elliott Trudeau Intl
$844Multiple Airlines
Wed, Sep 2 - Wed, Sep 9
Multiple Airlines Logo
5:25 pm - 12:50 pmBOS  Boston Logan Intl-SOU Southampton Eastleigh
14h 25m2 stops Dublin Glasgow Intl
Multiple Airlines Logo
9:20 am - 2:55 pmSOU  Southampton Eastleigh-BOS Boston Logan Intl
10h 35m1 stop Dublin
$853Multiple Airlines
Mon, Sep 28 - Sun, Oct 11
Aer Lingus Logo
9:15 pm - 7:30 pmBOS  Boston Logan Intl-SOU Southampton Eastleigh
17h 15m1 stop Dublin
Aer Lingus Logo
9:20 am - 2:55 pmSOU  Southampton Eastleigh-BOS Boston Logan Intl
10h 35m1 stop Dublin
$855Aer Lingus
Tue, Oct 13 - Wed, Oct 21
Aer Lingus Logo
9:15 pm - 4:50 pmBOS  Boston Logan Intl-SOU Southampton Eastleigh
14h 35m1 stop Dublin
Aer Lingus Logo
9:20 am - 2:55 pmSOU  Southampton Eastleigh-BOS Boston Logan Intl
10h 35m1 stop Dublin
$858Aer Lingus
Thu, Oct 1 - Sat, Oct 17
Multiple Airlines Logo
5:45 am - 7:30 pmBOS  Boston Logan Intl-SOU Southampton Eastleigh
32h 45m2 stops Montreal Pierre Elliott Trudeau Intl Dublin
Multiple Airlines Logo
3:35 pm - 2:02 pmSOU  Southampton Eastleigh-BOS Boston Logan Intl
27h 27m3 stops Paris Orly Montreal Pierre Elliott Trudeau Intl Toronto Island
$871Multiple Airlines
Wed, Sep 2 - Wed, Sep 9
Multiple Airlines Logo
2:45 pm - 7:30 pmBOS  Boston Logan Intl-SOU Southampton Eastleigh
23h 45m3 stops Toronto Island Montreal Pierre Elliott Trudeau Intl Dublin
Multiple Airlines Logo
3:35 pm - 2:02 pmSOU  Southampton Eastleigh-BOS Boston Logan Intl
27h 27m3 stops Paris Orly Montreal Pierre Elliott Trudeau Intl Toronto Island
$888Multiple Airlines
Wed, Sep 2 - Wed, Sep 9
Multiple Airlines Logo
10:40 am - 7:30 pmBOS  Boston Logan Intl-SOU Southampton Eastleigh
27h 50m2 stops Montreal Pierre Elliott Trudeau Intl Dublin
Multiple Airlines Logo
8:00 pm - 6:07 pmSOU  Southampton Eastleigh-BOS Boston Logan Intl
27h 07m2 stops Dublin Montreal Pierre Elliott Trudeau Intl
$901Multiple Airlines
Fri, Sep 18 - Fri, Sep 25
Multiple Airlines Logo
7:30 pm - 4:50 pmBOS  Boston Logan Intl-SOU Southampton Eastleigh
40h 20m2 stops Toronto Pearson Intl Dublin
Multiple Airlines Logo
9:20 am - 2:55 pmSOU  Southampton Eastleigh-BOS Boston Logan Intl
10h 35m1 stop Dublin
$902Multiple Airlines
Thu, Oct 1 - Sat, Oct 17

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Aer Lingus flights from Boston to Southampton

Our best Aer Lingus deals on Boston to Southampton flight tickets
Aer Lingus
Sep 28
BOS5:25 pmBoston Logan Intl
10h 15m
1 stop
SOU8:40 amSouthampton Eastleigh
Oct 11
SOU9:20 amSouthampton Eastleigh
14h 30m
1 stop
BOS6:50 pmBoston Logan Intl
$831
Aer Lingus
Oct 13
BOS9:15 pmBoston Logan Intl
17h 15m
1 stop
SOU7:30 pmSouthampton Eastleigh
Oct 21
SOU9:20 amSouthampton Eastleigh
10h 35m
1 stop
BOS2:55 pmBoston Logan Intl
$855
Aer Lingus
Oct 1
BOS9:15 pmBoston Logan Intl
14h 35m
1 stop
SOU4:50 pmSouthampton Eastleigh
Oct 17
SOU9:20 amSouthampton Eastleigh
10h 35m
1 stop
BOS2:55 pmBoston Logan Intl
$858

Delta flights from Boston to Southampton

Our best Delta deals on Boston to Southampton flight tickets
Delta
Sep 22
BOS7:00 pmBoston Logan Intl
16h 50m
1 stop
SOU4:50 pmSouthampton Eastleigh
Sep 28
SOU5:20 pmSouthampton Eastleigh
24h 59m
1 stop
BOS1:19 pmBoston Logan Intl
$1,118
Delta
Sep 22
BOS9:20 amBoston Logan Intl
18h 25m
2 stops
SOU8:45 amSouthampton Eastleigh
Sep 29
SOU9:05 amSouthampton Eastleigh
12h 30m
1 stop
BOS4:35 pmBoston Logan Intl
$1,122
Delta
Sep 16
BOS7:00 pmBoston Logan Intl
16h 50m
1 stop
SOU4:50 pmSouthampton Eastleigh
Sep 28
SOU5:20 pmSouthampton Eastleigh
24h 59m
1 stop
BOS1:19 pmBoston Logan Intl
$1,124

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 August 5, 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 Boston Logan Intl - SOU Southampton Eastleigh

BOSSOU

Boston Logan Intl

Tue 10/13

5:25 pm-8:05 am

1 stop9h 40m

Southampton Eastleigh

Wed 10/21

12:20 pm-9:05 pm

2 stops37h 45m

$749
Quickest round-trip

BostonSouthampton

BOS Boston Logan Intl - SOU Southampton Eastleigh

BOSSOU

Boston Logan Intl

Mon 9/28

5:25 pm-8:40 am

1 stop10h 15m

Southampton Eastleigh

Sun 10/11

9:20 am-6:50 pm

1 stop14h 30m

$831

BostonSouthampton

BOS Boston Logan Intl - SOU Southampton Eastleigh

BOSSOU

Boston Logan Intl

Wed 9/2

10:40 am-4:50 pm

2 stops25h 10m

Southampton Eastleigh

Wed 9/9

8:00 pm-2:41 pm

2 stops23h 41m

$844

BostonSouthampton

BOS Boston Logan Intl - SOU Southampton Eastleigh

BOSSOU

Boston Logan Intl

Mon 9/28

5:25 pm-12:50 pm

2 stops14h 25m

Southampton Eastleigh

Sun 10/11

9:20 am-2:55 pm

1 stop10h 35m

$853

BostonSouthampton

BOS Boston Logan Intl - SOU Southampton Eastleigh

BOSSOU

Boston Logan Intl

Tue 10/13

9:15 pm-7:30 pm

1 stop17h 15m

Southampton Eastleigh

Wed 10/21

9:20 am-2:55 pm

1 stop10h 35m

$855

BostonSouthampton

BOS Boston Logan Intl - SOU Southampton Eastleigh

BOSSOU

Boston Logan Intl

Thu 10/1

9:15 pm-4:50 pm

1 stop14h 35m

Southampton Eastleigh

Sat 10/17

9:20 am-2:55 pm

1 stop10h 35m

$858

BostonSouthampton

BOS Boston Logan Intl - SOU Southampton Eastleigh

BOSSOU

Boston Logan Intl

Wed 9/2

5:45 am-7:30 pm

2 stops32h 45m

Southampton Eastleigh

Wed 9/9

3:35 pm-2:02 pm

3 stops27h 27m

$871

BostonSouthampton

BOS Boston Logan Intl - SOU Southampton Eastleigh

BOSSOU

Boston Logan Intl

Wed 9/2

2:45 pm-7:30 pm

3 stops23h 45m

Southampton Eastleigh

Wed 9/9

3:35 pm-2:02 pm

3 stops27h 27m

$888

BostonSouthampton

BOS Boston Logan Intl - SOU Southampton Eastleigh

BOSSOU

Boston Logan Intl

Fri 9/18

10:40 am-7:30 pm

2 stops27h 50m

Southampton Eastleigh

Fri 9/25

8:00 pm-6:07 pm

2 stops27h 07m

$901

BostonSouthampton

BOS Boston Logan Intl - SOU Southampton Eastleigh

BOSSOU

Boston Logan Intl

Thu 10/1

7:30 pm-4:50 pm

2 stops40h 20m

Southampton Eastleigh

Sat 10/17

9:20 am-2:55 pm

1 stop10h 35m

$902

Flights are sorted by cheapest round-trip 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?

Delta is the most popular carrier 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 47% of people opting to fly with this airline when traveling to Southampton. Keep in mind that there are 17 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

9h 40m

Direct flights

None
The fastest flight from Boston to Southampton takes 9h 40m
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 9h 40m, 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
1,690 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.

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