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Cheap flights from Massachusetts to Belfast Intl Airport from £210

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 14/10. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BFS
15 Aug — 22 Aug1
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 16 July 2026.

Wed 9/920:50
BOS
-
BFS
2 stops16h 05m
Multiple Airlines
Tue 15/916:00
BFS
-
BOS
2 stops31h 50m
Multiple Airlines
Deal found 14/7£538
Sun 23/823:00
BOS
-
BFS
2 stops17h 55m
Multiple Airlines
Mon 7/915:35
BFS
-
BOS
2 stops35h 10m
Multiple Airlines
Deal found 14/7£543
Wed 9/905:50
BOS
-
BFS
3 stops34h 20m
Multiple Airlines
Tue 22/908:50
BFS
-
BOS
3 stops34h 55m
Multiple Airlines
Deal found 11/7£570
Mon 17/813:10
BOS
-
BFS
2 stops23h 40m
Multiple Airlines
Mon 24/820:35
BFS
-
BOS
2 stops27h 15m
Multiple Airlines
Deal found 11/7£589
Sun 16/821:15
BOS
-
BFS
2 stops20h 55m
Multiple Airlines
Tue 1/907:50
BFS
-
BOS
3 stops41h 30m
Multiple Airlines
Deal found 15/7£627
Wed 23/923:00
BOS
-
BFS
2 stops15h 40m
Multiple Airlines
Sun 11/1006:10
BFS
-
BOS
1 stop20h 35m
Multiple Airlines
Deal found 13/7£631
Tue 8/918:00
BDL
-
BFS
2 stops16h 40m
Multiple Airlines
Tue 15/920:10
BFS
-
BDL
2 stops25h 20m
Multiple Airlines
Deal found 14/7£1,173
Tue 28/718:00
BDL
-
BFS
2 stops20h 50m
Multiple Airlines
Fri 31/722:15
BFS
-
BDL
2 stops23h 15m
Multiple Airlines
Deal found 13/7£1,475
Wed 15/710:26
BDL
-
BFS
3 stops24h 49m
Multiple Airlines
Fri 17/707:20
BFS
-
BDL
2 stops14h 10m
Multiple Airlines
Deal found 11/7£1,695

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 16 July 2026.

Round-trip from

£538

One-way from

£210

Popular in

November

Cheapest in

March

Average price

£616
9/9-15/9
  • 9/9-15/9
  • 4 total stops
  • 47h 55m total
  • Massachusetts to Belfast
Search Deals
14/10
  • 14/10
  • 3 total stops
  • 41h 45m total
  • Massachusetts to Belfast
Search Deals
Highest demand for flights based on searches. 36% potential increase in price (£312 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 15% potential price decrease (£76 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
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 16 July 2026.
Use the filters below to find and compare flights from Massachusetts to Belfast Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Wed 9/9

20:50-17:55

2 stops16h 05m

Belfast Intl

Tue 15/9

17:10-21:45

3 stops33h 35m

£557

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Wed 9/9

10:50-17:05

2 stops25h 15m

Belfast Intl

Tue 22/9

08:50-14:45

3 stops34h 55m

£573

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Mon 17/8

13:10-17:50

2 stops23h 40m

Belfast Intl

Mon 24/8

20:35-18:50

2 stops27h 15m

£589

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sun 16/8

21:15-23:10

2 stops20h 55m

Belfast Intl

Tue 1/9

07:50-20:20

3 stops41h 30m

£627

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Wed 23/9

23:00-19:40

2 stops15h 40m

Belfast Intl

Sun 11/10

06:10-21:45

1 stop20h 35m

£631
Fastest return journey

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Tue 22/9

20:50-16:20

2 stops14h 30m

Belfast Intl

Sun 11/10

06:10-21:45

1 stop20h 35m

£660

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sat 15/8

22:45-23:25

2 stops19h 40m

Belfast Intl

Sat 22/8

06:55-20:55

3 stops19h 00m

£721

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Wed 12/8

17:25-14:30

2 stops16h 05m

Belfast Intl

Tue 18/8

22:45-18:50

2 stops25h 05m

£737

HartfordBelfast

BDL - BFS

BDLBFS

Hartford Bradley Intl

Tue 8/9

18:00-15:40

2 stops16h 40m

Belfast Intl

Tue 15/9

20:10-16:30

2 stops25h 20m

£1,173

HartfordBelfast

BDL - BFS

BDLBFS

Hartford Bradley Intl

Tue 28/7

18:00-19:50

2 stops20h 50m

Belfast Intl

Fri 31/7

22:15-16:30

2 stops23h 15m

£1,475

Flights are sorted by cheapest return flights first.

Deals found on 13/7

Showing 1-10 of 16 resultsSorted by cheapest first
1
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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

No data available for this route at this time. Please check back soon.

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.

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

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

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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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