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Belfast Intl

$350+ Cheap flights from Massachusetts to Belfast Intl (BFS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/6. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BFS
Jan 2 — Jan 91
Fri 1/2
Fri 1/9
1 adult, Economy
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Cheap flight deals from Massachusetts to Belfast Intl

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 December 3, 2025.

This Mytrip deal was found by Cheapflights users on 12/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/205:20 pmBOS - BFS
2 stops15h 10mMultiple Airlines
Sun 1/411:05 pmBFS - BOS
3 stops29h 52mMultiple Airlines
Deal found 12/1$2,443
This Mytrip deal was found by Cheapflights users on 12/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/205:45 amBOS - BFS
3 stops33h 10mMultiple Airlines
Fri 1/26:30 amBFS - BOS
2 stops19h 57mMultiple Airlines
Deal found 12/1$2,670

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 December 3, 2025.

Round-trip from

$574
(Kiwi.com)

One-way from

$350
(Kiwi.com)

Popular in

November

Cheapest in

September

Average price

$1,027
From Massachusetts to Belfast Intl
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One-way flight from Massachusetts to Belfast Intl
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Highest demand for flights based on searches. 23% potential increase in price ($249 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($62 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated December 3, 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

Sun 1/11

8:00 pm-9:55 pm

1 stop20h 55m

Belfast Intl

Tue 1/27

6:30 am-8:55 pm

2 stops19h 25m

$574

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Thu 1/15

10:15 am-8:25 pm

3 stops29h 10m

Belfast Intl

Thu 1/22

7:05 am-6:35 pm

2 stops16h 30m

$630

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sun 1/25

8:00 pm-9:05 am

1 stop32h 05m

Belfast Intl

Tue 2/10

8:55 pm-4:50 pm

2 stops24h 55m

$722

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Mon 4/13

5:30 pm-10:00 am

2 stops11h 30m

Belfast Intl

Wed 4/15

8:10 pm-8:45 pm

3 stops29h 35m

$748

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Thu 1/1

5:20 pm-10:30 am

2 stops12h 10m

Belfast Intl

Thu 1/8

7:05 am-6:59 pm

2 stops16h 54m

$1,007

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Tue 1/6

6:00 am-10:05 am

3 stops47h 05m

$350

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/30

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 round-trip 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 $534). Flying from Massachusetts to Belfast Intl Airport in December is currently the most expensive (average of $995). 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.

  • What are the most popular routes from Massachusetts to Belfast Intl Airport?

    The most popular flight routes from Massachusetts to Belfast Intl Airport are Boston Logan Intl - Belfast Intl, Hartford Bradley Intl - Belfast Intl and Worcester - Belfast Intl.

  • 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 vacation 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 $534). Flying from Massachusetts to Belfast Intl Airport in December is currently the most expensive (average of $995). 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.

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Alternative routes for Massachusetts to Belfast Intl

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Massachusetts to Belfast Intl

Discover the top 2 airlines that operate flights from Massachusetts to Belfast Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$542Average$652FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$565Average$800FlexibilityNo cancel feeOn-time71%

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