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>

$265 CHEAP FLIGHTS from Massachusetts to Belfast

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

...and more

Travelers love KAYAK

41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Cheapest round-trip

$545

British Airways

Sun 3/1Tue 3/10

BOS - BHD • 1 stop

Cheapest one-way

$265

Multiple Airlines

Sun 2/1

BOS - BHD • 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

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Massachusetts to Belfast that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

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

Round-trip

One-way

Last minute

Recent round-trip flight deals from Massachusetts to Belfast

Sun, Mar 1 - Tue, Mar 10

6:55 pm - 1:55 pmBOS-BHD

14h 00m1 stop

3:05 pm - 10:55 pmBHD-BOS

11h 50m1 stop

$545British Airways

Find Deal

Sun, Mar 1 - Tue, Mar 10

3:45 pm - 10:20 amBOS-BHD

13h 35m2 stops

6:35 am - 4:55 pmBHD-BOS

14h 20m1 stop

$553American Airlines

Find Deal

Sun, Mar 1 - Tue, Mar 10

7:50 pm - 9:30 pmBOS-BFS

20h 40m2 stops

6:30 am - 6:50 pmBFS-BOS

16h 20m2 stops

$556Multiple Airlines

Find Deal

Sun, Nov 9 - Tue, Nov 25

7:10 pm - 4:50 pmBOS-BHD

16h 40m1 stop

6:30 am - 1:20 pmBHD-BOS

11h 50m1 stop

$559Delta

Find Deal

Sun, Mar 1 - Tue, Mar 10

6:59 pm - 1:55 pmBOS-BHD

13h 56m2 stops

11:25 am - 10:59 pmBHD-BOS

15h 34m2 stops

$563American Airlines

Find Deal

Sun, Nov 9 - Tue, Nov 25

7:10 pm - 9:00 pmBOS-BHD

20h 50m1 stop

6:30 am - 4:14 pmBHD-BOS

14h 44m2 stops

$565KLM

Find Deal

Mon, Dec 1 - Tue, Dec 16

7:10 pm - 4:50 pmBOS-BHD

16h 40m1 stop

6:30 am - 4:11 pmBHD-BOS

14h 41m2 stops

$569Multiple Airlines

Find Deal

Wed, Nov 12 - Mon, Nov 17

1:10 pm - 4:50 pmBOS-BHD

22h 40m2 stops

6:30 am - 7:14 pmBHD-BOS

17h 44m2 stops

$623Delta

Find Deal

Sun, Mar 29 - Thu, Apr 2

5:00 pm - 9:20 pmBDL-BHD

23h 20m2 stops

5:25 pm - 9:16 pmBHD-BDL

32h 51m2 stops

$1,084Virgin Atlantic

Find Deal

Tue, Nov 25 - Sun, Nov 30

7:10 pm - 9:00 pmBOS-BHD

20h 50m1 stop

5:20 pm - 6:55 pmBHD-BOS

30h 35m1 stop

$1,468KLM

Find Deal

Useful Info

Cheapest flight	$265

Flight from Boston to Belfast City 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

Flights to other cities

Origins

Other airports

Return flight deals

Cabin class types available on flights to Massachusetts

First Class flights to Belfast

Business Class flights to Belfast

Prem Econ Class flights to Belfast

Economy Class flights to Belfast

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.

$265 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

Recent last minute 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