How does KAYAK find such low prices on flights from Massachusetts to Belfast?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Massachusetts to Belfast. Visit our flight page for the latest deals!>/a>

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Massachusetts to Belfast?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Belfast from Massachusetts is likely to change within 7 days, so travelers know whether to wait or book now. Visit our flight page for the latest deals!>/a>

What is the Hacker Fare option on flights from Massachusetts to Belfast?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Belfast with an airline and back to Massachusetts with another airline. Visit our flight page for the latest deals!>/a>

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Massachusetts to Belfast?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Belfast from Massachusetts up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. Visit our flight page for the latest deals!>/a>

$272 CHEAP FLIGHTS from Massachusetts to Belfast

KAYAK searches hundreds of travel sites at once for deals on flights to Belfast

...and more

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Cheapest round-trip

$575

British Airways

Wed 4/22Wed 5/6

BOS - BHD • 1 stop

Cheapest one-way

$272

Multiple Airlines

Sun 5/17

BOS - BFS • 2 stops

Start a new search

KAYAK searches 100s of sites at once to find you the best travel deals.

We hope you love your trip to Belfast!

Flight Deals

Cheap Flights from Massachusetts to Belfast

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Recent round-trip flight deals from Massachusetts to Belfast

Wed, Apr 22 - Wed, May 6

7:35 pm - 12:00 pm

BOS

BHD

11h 25m

1 stop

8:35 pm - 5:00 pm

BHD

BOS

25h 25m

1 stop

$575British Airways

Mon, Mar 9 - Mon, Mar 23

7:55 pm - 10:40 am

BOS

BHD

10h 45m

1 stop

5:45 pm - 3:16 pm

BHD

BOS

25h 31m

2 stops

$579British Airways

Mon, Mar 9 - Mon, Mar 23

3:49 pm - 10:40 am

BOS

BHD

14h 51m

2 stops

5:45 pm - 7:19 pm

BHD

BOS

29h 34m

2 stops

$581British Airways

Sun, Apr 26 - Mon, May 4

4:35 pm - 9:20 am

BOS

BHD

11h 45m

1 stop

9:50 am - 1:10 pm

BHD

BOS

32h 20m

1 stop

$592Delta

Sun, Apr 26 - Tue, May 5

4:35 pm - 4:55 pm

BOS

BHD

19h 20m

1 stop

9:50 am - 11:02 pm

BHD

BOS

18h 12m

2 stops

$602Delta

Tue, Mar 31 - Tue, Apr 7

3:18 pm - 10:45 am

BDL

BHD

14h 27m

2 stops

6:30 am - 11:41 pm

BHD

BDL

22h 11m

2 stops

$661American Airlines

Sun, Apr 26 - Wed, May 6

11:00 pm - 6:50 pm

BOS

BFS

14h 50m

2 stops

9:35 am - 9:05 pm

BFS

BOS

16h 30m

1 stop

$718Multiple Airlines

Mon, Apr 27 - Wed, May 6

8:50 pm - 3:35 pm

BOS

BFS

13h 45m

2 stops

9:35 am - 9:05 pm

BFS

BOS

16h 30m

1 stop

$727Multiple Airlines

Sun, Mar 15 - Mon, Mar 23

6:40 pm - 2:25 pm

BDL

BHD

15h 45m

2 stops

6:50 pm - 5:10 pm

BHD

BDL

26h 20m

2 stops

$905Aer Lingus

Sun, Mar 15 - Sat, Mar 21

6:40 pm - 2:25 pm

BDL

BHD

15h 45m

2 stops

5:55 pm - 5:10 pm

BHD

BDL

51h 15m

2 stops

$915Aer Lingus

Useful Info

Cheapest flight	$272

Flight from Boston to Belfast Intl Airport

How does KAYAK find such low prices on flights from Massachusetts to Belfast?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Massachusetts to Belfast.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Massachusetts to Belfast?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Belfast from Massachusetts is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Massachusetts to Belfast?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Belfast with an airline and back to Massachusetts with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Massachusetts to Belfast?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Belfast from Massachusetts up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight to Belfast

Cabin class

Complete your trip

Direct Flights

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Cabin class types available on flights to Massachusetts

First Class flights to Belfast

Business Class flights to Belfast

Premium Economy Class flights to Belfast

Economy Class flights to Belfast

$272 Find Cheap Flights from Massachusetts to Belfast

KAYAK searches hundreds of travel sites at once for deals on flights to Belfast

Everything you should know

Cheap Flights from Massachusetts to Belfast

Recent round-trip flight deals from Massachusetts to Belfast

Recent one-way flight deals from Massachusetts to Belfast

Good to know

FAQs for booking flights from Massachusetts to Belfast

How does KAYAK find such low prices on flights from Massachusetts to Belfast?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Massachusetts to Belfast.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Massachusetts to Belfast?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Belfast from Massachusetts is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Massachusetts to Belfast?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Belfast with an airline and back to Massachusetts with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Massachusetts to Belfast?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Belfast from Massachusetts up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight to Belfast

Cabin class types available on flights to Massachusetts

Complete your trip to Belfast with a hotel stay or car rental

Find direct flights for Belfast

Flights to other popular destinations

Flights from domestic origins to Belfast

Choose which airport to fly into in Belfast

Find deals for your return flight