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Cheap flights from Massachusetts to Belfast Intl Airport from £484

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 22/1. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BFS
9 Jan — 16 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Massachusetts to Belfast Intl

Enter your travel dates to find the best prices.

Cheapest flights from Massachusetts to Belfast Intl
Explore the most affordable flight options available from Massachusetts to Belfast Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 December 2025.

Thu 11/1222:35BOS - BFS
1 stop10h 05mMultiple Airlines
Fri 12/1217:30BFS - BOS
2 stops31h 25mMultiple Airlines
Deal found 8/12£1,622

Find flight deals from Massachusetts to Belfast Intl

Keep the following information in mind while searching for Massachusetts to Belfast Intl flight deals. Data was last updated 10 December 2025.

Round-trip from

£484

Popular in

November

Cheapest in

September

Average price

£917
22/1-29/1
  • 22/1-29/1
  • 4 total stops
  • 35h 20m total
  • Massachusetts to Belfast
Search Deals
Highest demand for flights based on searches. 25% potential increase in price (£164 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease (£34 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Massachusetts to Belfast Intl 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, Cheapflights users made 858,174 searches. Data last updated 10 December 2025.
Use the filters below to find and compare flights from Massachusetts to Belfast Intl Airport that are best for you.

Fly from

Massachusetts

Fly to

Belfast Intl

Route

Depart

Return

Price

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Thu 22/1

19:50-20:25

2 stops19h 35m

Belfast Intl

Thu 29/1

07:05-17:50

2 stops15h 45m

£484

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sun 1/2

19:50-18:25

2 stops17h 35m

Belfast Intl

Sat 7/2

05:45-14:35

3 stops37h 50m

£499

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Mon 23/3

23:40-13:05

1 stop33h 25m

Belfast Intl

Wed 1/4

09:35-21:05

1 stop16h 30m

£559

HartfordBelfast

BDL - BFS

BDLBFS

Hartford Bradley Intl

Sat 23/5

18:05-20:40

2 stops21h 35m

Belfast Intl

Sun 31/5

22:00-16:35

2 stops23h 35m

£1,101

Flights are sorted by cheapest return flights first.

Deals found on 8/12

Best time to book a flight from Massachusetts to Belfast Intl

Have a flexible travel schedule? Discover the best time to fly to Belfast Intl from Massachusetts with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Massachusetts to Belfast Intl Airport

What is the cheapest month to book a flight from Massachusetts to Belfast Intl Airport?

Currently, September is the cheapest month in which you can book a flight from Massachusetts to Belfast Intl Airport (average of £401). Flying from Massachusetts to Belfast Intl Airport in December is currently the most expensive (average of £762). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Massachusetts to Belfast Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find deals for flights from Massachusetts to Belfast Intl that include hotel bookings?

    Yes. In addition to deals on Massachusetts to Belfast Intl flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Massachusetts to Belfast Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Massachusetts to Belfast Intl.

  • Can I find deals for business class flights from Massachusetts to Belfast Intl?

    Yes. Cheapflights offers flight deals from Massachusetts to Belfast Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Massachusetts to Belfast Intl Airport?

    Currently, September is the cheapest month in which you can book a flight from Massachusetts to Belfast Intl Airport (average of £401). Flying from Massachusetts to Belfast Intl Airport in December is currently the most expensive (average of £762). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Belfast Intl Airport?

Book flights to Belfast Intl Airport if you plan to visit one of these locations
Armagh
Newry
Ballymena
Cookstown
Dungannon

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Fly with Cheapflights

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How does Cheapflights help users find flights from Massachusetts to Belfast Intl?

Cheapflights makes it easy to find Massachusetts to Belfast Intl flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Massachusetts to Belfast Intl?

Cheapflights simply makes it quick and affordable to book flights from Massachusetts to Belfast Intl by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Massachusetts to Belfast Intl with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Massachusetts to Belfast Intl flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Massachusetts to Belfast Intl become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Belfast Intl from Massachusetts today and book when prices fit your budget.

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