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Cheap flights from Boston to London from $343

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 7/29. 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 round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:50 pm - 4:40 pm
BOS
-
SEN
14h 50m
2 stops
Multiple Airlines Logo
11:20 am - 9:45 pm
SEN
-
BOS
15h 25m
2 stops
$878Multiple Airlines
Wed, Aug 19 - Fri, Aug 28
Multiple Airlines Logo
8:50 pm - 4:40 pm
BOS
-
SEN
14h 50m
2 stops
Multiple Airlines Logo
11:10 am - 9:45 pm
SEN
-
BOS
15h 35m
2 stops
$882Multiple Airlines
Wed, Aug 26 - Mon, Aug 31
Multiple Airlines Logo
8:50 pm - 4:40 pm
BOS
-
SEN
14h 50m
2 stops
Multiple Airlines Logo
11:10 am - 9:45 pm
SEN
-
BOS
15h 35m
2 stops
$923Multiple Airlines
Wed, Aug 5 - Mon, Aug 10
Multiple Airlines Logo
8:50 pm - 4:40 pm
BOS
-
SEN
14h 50m
2 stops
Multiple Airlines Logo
12:15 pm - 9:45 pm
SEN
-
BOS
14h 30m
2 stops
$937Multiple Airlines
Wed, Jul 15 - Wed, Jul 22
Multiple Airlines Logo
10:55 pm - 9:50 pm
BOS
-
SEN
17h 55m
1 stop
Multiple Airlines Logo
8:25 am - 9:05 pm
SEN
-
BOS
17h 40m
1 stop
$1,009Multiple Airlines
Wed, Aug 19 - Wed, Sep 2
Multiple Airlines Logo
11:00 pm - 6:50 pm
BOS
-
SEN
14h 50m
2 stops
Multiple Airlines Logo
7:35 am - 6:50 pm
SEN
-
BOS
16h 15m
2 stops
$1,029Multiple Airlines
Sun, Jul 19 - Sun, Jul 26
Multiple Airlines Logo
5:10 am - 7:10 pm
BOS
-
SEN
33h 00m
3 stops
Multiple Airlines Logo
6:30 am - 5:42 pm
SEN
-
BOS
16h 12m
2 stops
$1,041Multiple Airlines
Thu, Jun 25 - Tue, Jun 30
Multiple Airlines Logo
4:55 pm - 7:40 pm
BOS
-
SEN
21h 45m
2 stops
Multiple Airlines Logo
7:35 am - 3:40 pm
SEN
-
BOS
13h 05m
2 stops
$1,050Multiple Airlines
Tue, Jul 14 - Sun, Jul 19
Multiple Airlines Logo
6:50 pm - 7:40 pm
BOS
-
SEN
19h 50m
2 stops
Multiple Airlines Logo
7:35 am - 6:07 pm
SEN
-
BOS
15h 32m
2 stops
$1,082Multiple Airlines
Tue, Jun 30 - Sun, Jul 5
Multiple Airlines Logo
5:10 pm - 10:45 am
BOS
-
SEN
12h 35m
1 stop
Multiple Airlines Logo
11:20 am - 7:35 pm
SEN
-
BOS
13h 15m
1 stop
$1,096Multiple Airlines
Thu, Jul 9 - Fri, Jul 17

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 May 28, 2026.
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

Cheapest round-trip

BostonLondon

BOS - SEN

BOSSEN

Boston Logan Intl

Wed 8/19

8:50 pm-4:40 pm

2 stops14h 50m

London Southend

Fri 8/28

11:20 am-9:45 pm

2 stops15h 25m

$878

BostonLondon

BOS - SEN

BOSSEN

Boston Logan Intl

Wed 8/26

8:50 pm-4:40 pm

2 stops14h 50m

London Southend

Mon 8/31

11:10 am-9:45 pm

2 stops15h 35m

$882

BostonLondon

BOS - SEN

BOSSEN

Boston Logan Intl

Wed 8/5

8:50 pm-4:40 pm

2 stops14h 50m

London Southend

Mon 8/10

11:10 am-9:45 pm

2 stops15h 35m

$923

BostonLondon

BOS - SEN

BOSSEN

Boston Logan Intl

Wed 7/15

8:50 pm-4:40 pm

2 stops14h 50m

London Southend

Wed 7/22

12:15 pm-9:45 pm

2 stops14h 30m

$937

BostonLondon

BOS - SEN

BOSSEN

Boston Logan Intl

Wed 8/19

10:55 pm-9:50 pm

1 stop17h 55m

London Southend

Wed 9/2

8:25 am-9:05 pm

1 stop17h 40m

$1,009

BostonLondon

BOS - SEN

BOSSEN

Boston Logan Intl

Sun 7/19

11:00 pm-6:50 pm

2 stops14h 50m

London Southend

Sun 7/26

7:35 am-6:50 pm

2 stops16h 15m

$1,029

BostonLondon

BOS - SEN

BOSSEN

Boston Logan Intl

Thu 6/25

5:10 am-7:10 pm

3 stops33h 00m

London Southend

Tue 6/30

6:30 am-5:42 pm

2 stops16h 12m

$1,041

BostonLondon

BOS - SEN

BOSSEN

Boston Logan Intl

Tue 7/14

4:55 pm-7:40 pm

2 stops21h 45m

London Southend

Sun 7/19

7:35 am-3:40 pm

2 stops13h 05m

$1,050

BostonLondon

BOS - SEN

BOSSEN

Boston Logan Intl

Tue 6/30

6:50 pm-7:40 pm

2 stops19h 50m

London Southend

Sun 7/5

7:35 am-6:07 pm

2 stops15h 32m

$1,082
Quickest round-trip

BostonLondon

BOS - SEN

BOSSEN

Boston Logan Intl

Thu 7/9

5:10 pm-10:45 am

1 stop12h 35m

London Southend

Fri 7/17

11:20 am-7:35 pm

1 stop13h 15m

$1,096

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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

Fastest flight time

11h 15m

Direct flights

None
The fastest flight from Boston to London Southend Airport takes 11h 15m
There are no direct flights from Boston to London Southend Airport. There are no popular flight routes from Boston to London Southend Airport.
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Frequently asked questions about flying from Boston to London Southend Airport

  • 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.

Frequently asked questions about flying from Boston to London Southend Airport

  • 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
Milton Keynes
Luton
Dover
Hayes
Crawley
Croydon
Wembley
Slough
Stansted
Harrow
Dartford
Brentwood
Watford
Ilford
Cobham
Folkestone
Uxbridge
Guildford

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

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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