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Cheap flights from Boston to London from $287

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 10/14. 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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Cheap round-trip flights

Logo
10:45 pm - 7:35 pmBOS-SEN
15h 50m2 stops
Logo
5:30 pm - 2:20 pmSEN-BOS
25h 50m3 stops
$806
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Sat, Sep 27 - Sat, Oct 4
Logo
10:40 pm - 7:45 pmBOS-SEN
16h 05m1 stop
Logo
7:10 am - 8:55 pmSEN-BOS
18h 45m1 stop
$949
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Mon, Dec 29 - Sun, Jan 11
Logo
10:40 pm - 7:45 pmBOS-SEN
16h 05m1 stop
Logo
7:10 am - 8:55 pmSEN-BOS
18h 45m1 stop
$972
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Mon, Dec 15 - Sun, Dec 28
Logo
8:15 pm - 8:50 pmBOS-SEN
19h 35m2 stops
Logo
11:05 am - 8:20 pmSEN-BOS
14h 15m1 stop
$1,034
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Wed, Aug 27 - Mon, Sep 1
Logo
10:35 pm - 2:50 pmBOS-SEN
11h 15m1 stop
Logo
7:15 am - 2:35 pmSEN-BOS
36h 20m2 stops
$1,091
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Sun, Nov 16 - Sat, Nov 22
Logo
10:40 pm - 7:45 pmBOS-SEN
16h 05m1 stop
Logo
7:10 am - 7:50 pmSEN-BOS
17h 40m2 stops
$1,137
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Mon, Dec 15 - Sun, Dec 28
Logo
10:23 pm - 7:40 pmBOS-SEN
16h 17m1 stop
Logo
1:55 pm - 2:20 pmSEN-BOS
29h 25m2 stops
$1,153
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Tue, Sep 30 - Thu, Oct 9
Logo
10:23 pm - 7:40 pmBOS-SEN
16h 17m1 stop
Logo
1:55 pm - 2:20 pmSEN-BOS
29h 25m2 stops
$1,154
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Tue, Sep 30 - Thu, Oct 9
Logo
10:20 pm - 10:25 amBOS-SEN
31h 05m1 stop
Logo
8:40 am - 2:20 pmSEN-BOS
34h 40m2 stops
$1,187
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Sat, Sep 27 - Sat, Oct 4
Logo
10:40 pm - 7:45 pmBOS-SEN
16h 05m1 stop
Logo
7:10 am - 7:50 pmSEN-BOS
17h 40m2 stops
$1,227
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Mon, Dec 29 - Sun, Jan 11

momondo Fare Finder

 
Customize your flight search to find flights from Boston to London Southend Airport 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 14, 2025.
Use the filters below to find and compare flights from Boston to London Southend Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BostonLondon

BOS - SEN

BOSSEN

Boston Logan Intl

Sat 9/27

10:45 pm-7:35 pm

2 stops15h 50m

London Southend

Sat 10/4

5:30 pm-2:20 pm

3 stops25h 50m

$806

BostonLondon

BOS - SEN

BOSSEN

Boston Logan Intl

Mon 12/29

10:40 pm-7:45 pm

1 stop16h 05m

London Southend

Sun 1/11

7:10 am-8:55 pm

1 stop18h 45m

$949

BostonLondon

BOS - SEN

BOSSEN

Boston Logan Intl

Mon 12/15

10:40 pm-7:45 pm

1 stop16h 05m

London Southend

Sun 12/28

7:10 am-8:55 pm

1 stop18h 45m

$972

BostonLondon

BOS - SEN

BOSSEN

Boston Logan Intl

Wed 8/27

8:15 pm-8:50 pm

2 stops19h 35m

London Southend

Mon 9/1

11:05 am-8:20 pm

1 stop14h 15m

$1,034

BostonLondon

BOS - SEN

BOSSEN

Boston Logan Intl

Sun 11/16

10:35 pm-2:50 pm

1 stop11h 15m

London Southend

Sat 11/22

7:15 am-2:35 pm

2 stops36h 20m

$1,091

BostonLondon

BOS - SEN

BOSSEN

Boston Logan Intl

Mon 12/15

10:40 pm-7:45 pm

1 stop16h 05m

London Southend

Sun 12/28

7:10 am-7:50 pm

2 stops17h 40m

$1,137

BostonLondon

BOS - SEN

BOSSEN

Boston Logan Intl

Tue 9/30

10:23 pm-7:40 pm

1 stop16h 17m

London Southend

Thu 10/9

1:55 pm-2:20 pm

2 stops29h 25m

$1,153

BostonLondon

BOS - SEN

BOSSEN

Boston Logan Intl

Tue 9/30

10:23 pm-7:40 pm

1 stop16h 17m

London Southend

Thu 10/9

1:55 pm-2:20 pm

2 stops29h 25m

$1,154

BostonLondon

BOS - SEN

BOSSEN

Boston Logan Intl

Sat 9/27

10:20 pm-10:25 am

1 stop31h 05m

London Southend

Sat 10/4

8:40 am-2:20 pm

2 stops34h 40m

$1,187

BostonLondon

BOS - SEN

BOSSEN

Boston Logan Intl

Mon 12/29

10:40 pm-7:45 pm

1 stop16h 05m

London Southend

Sun 1/11

7:10 am-7:50 pm

2 stops17h 40m

$1,227

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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When to book flights from Boston to London Southend Airport

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

Cheap Boston to London Southend Airport (BOS to SEN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to London Southend Airport

Best Price Found

$287

Fastest flight time

11h 15m

Direct flights

None
The best one-way flight to London Southend Airport from Boston in the past 72 hours is $287. The best round-trip flight deal from Boston to London Southend Airport found on momondo in the last 72 hours is $806.
The fastest flight from Boston to London Southend Airport takes 11h 15m
There are no direct flights from Boston to London Southend Airport. Popular non-direct route for this connection is Boston Logan Intl Airport - London Southend Airport.
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  • How far is Boston Logan Intl to London Southend by plane?

    London Southend is 3300.8 mi away from Boston Logan Intl. In terms of flight time, this usually takes a little over 11h 15m.

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

    Prices for flights from Boston Logan Intl Airport to London Southend Airport are updated daily.

  • How old do you have to be to fly from Boston Logan Intl Airport to London Southend 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 London Southend Airport.

  • What documentation or ID do you need to fly to London Southend Airport?

    The travel and health documents you'll need for your trip to London Southend Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London Southend Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • How do I get Price Alerts for flights from Boston to London Southend Airport?

    Search flight deals from Boston to London Southend Airport. While viewing offers you’ll have the option to create a Price Alert.

  • How can I save money on flights from Boston to London Southend Airport with momondo?

    By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Hounslow
Gatwick
Dover
Slough
Luton
Guildford
Milton Keynes
Dartford
Crawley
Hayes
Chelmsford
Stansted
Brentwood
Ilford
Colchester
Folkestone
Watford
Richmond
Canterbury
Wembley

Why use momondo?

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

It is quick and easy to find Boston to London flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to London that suits you.

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

momondo does allow users to show only those flights to London 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 London?

Once all potential Boston to London flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are simply researching potential flights to London, momondo offers a useful price alert feature which will track prices for flights to London from Boston and alert you when they change.

An easier way to manage your London Southend Airport trip

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