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Cheap flights from Massachusetts to Belfast from £235

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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BHD
4 Jun — 11 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Massachusetts to Belfast

Enter your travel dates to find the best prices.

Cheapest flights from Massachusetts to Belfast
Explore the most affordable flight options available from Massachusetts to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 May 2026.

Thu 16/723:35
BOS
-
BFS
2 stops18h 55m
Multiple Airlines
Wed 29/717:45
BFS
-
BOS
1 stop33h 00m
Multiple Airlines
Deal found 2/5£606
Mon 31/823:00
BOS
-
BFS
2 stops16h 40m
Multiple Airlines
Wed 9/909:35
BFS
-
BOS
1 stop16h 40m
Multiple Airlines
Deal found 1/5£616
Sun 30/823:00
BOS
-
BFS
2 stops17h 00m
Multiple Airlines
Wed 9/909:35
BFS
-
BOS
1 stop16h 40m
Multiple Airlines
Deal found 1/5£628
Tue 25/820:50
BOS
-
BFS
3 stops18h 00m
Multiple Airlines
Thu 10/914:50
BFS
-
BOS
3 stops34h 30m
Multiple Airlines
Deal found 1/5£640
Mon 31/823:00
BOS
-
BFS
2 stops16h 40m
Multiple Airlines
Thu 10/910:15
BFS
-
BOS
1 stop16h 00m
Multiple Airlines
Deal found 1/5£642
Sun 30/823:00
BOS
-
BFS
2 stops17h 00m
Multiple Airlines
Thu 10/910:15
BFS
-
BOS
1 stop16h 00m
Multiple Airlines
Deal found 1/5£654
Tue 25/821:50
BOS
-
BHD
1 stop12h 30m
British Airways
Thu 10/909:35
BHD
-
BOS
1 stop15h 30m
British Airways
Deal found 1/5£658
Mon 28/921:50
BOS
-
BHD
1 stop10h 05m
British Airways
Mon 5/1011:35
BHD
-
BOS
1 stop10h 25m
British Airways
Deal found 1/5£661
Sun 30/821:55
BOS
-
BHD
1 stop11h 40m
British Airways
Thu 10/909:35
BHD
-
BOS
1 stop12h 30m
British Airways
Deal found 1/5£670
Tue 1/921:50
BOS
-
BHD
1 stop12h 30m
British Airways
Thu 10/912:45
BHD
-
BOS
1 stop12h 20m
British Airways
Deal found 1/5£672
Sun 30/819:30
BOS
-
BHD
1 stop10h 00m
British Airways
Sun 6/915:50
BHD
-
BOS
1 stop11h 45m
British Airways
Deal found 1/5£673
Thu 3/921:50
BOS
-
BHD
1 stop12h 40m
British Airways
Tue 8/913:45
BHD
-
BOS
1 stop13h 50m
British Airways
Deal found 1/5£675

Find flight deals from Massachusetts to Belfast

Keep the following information in mind while searching for Massachusetts to Belfast flight deals. Data was last updated 5 May 2026.

Round-trip from

£606

One-way from

£235

Popular in

November

Cheapest in

February

Average price

£611
16/7-29/7
  • 16/7-29/7
  • 3 total stops
  • 51h 55m total
  • Massachusetts to Belfast
Search Deals
1/9
  • 1/9
  • 3 total stops
  • 37h 30m total
  • Massachusetts to Belfast
Search Deals
Highest demand for flights based on searches. 29% potential increase in price (£177 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease (£35 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Massachusetts to Belfast 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 5 May 2026.
Use the filters below to find and compare flights from Massachusetts to Belfast that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sun 30/8

23:00-21:00

2 stops17h 00m

Belfast Intl

Wed 9/9

09:35-21:15

1 stop16h 40m

£628

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Mon 31/8

23:00-20:40

2 stops16h 40m

Belfast Intl

Thu 10/9

10:15-21:15

1 stop16h 00m

£642

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Mon 19/10

21:50-15:30

1 stop12h 40m

Belfast City

Thu 22/10

12:45-20:05

1 stop12h 20m

£672
Fastest return journey

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Tue 1/9

21:50-15:20

1 stop12h 30m

Belfast City

Sun 6/9

11:00-17:00

1 stop11h 00m

£675

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Tue 25/8

18:26-15:20

2 stops15h 54m

Belfast City

Thu 10/9

09:35-18:49

2 stops14h 14m

£682

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Mon 31/8

09:55-09:20

2 stops18h 25m

Belfast City

Tue 8/9

17:30-16:35

1 stop28h 05m

£686

HartfordBelfast

BDL - BHD

BDLBHD

Hartford Bradley Intl

Thu 10/9

19:45-15:30

2 stops14h 45m

Belfast City

Thu 17/9

06:30-20:59

2 stops19h 29m

£700

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Fri 12/6

10:05-21:50

2 stops30h 45m

Belfast Intl

Thu 18/6

20:05-20:55

2 stops29h 50m

£704

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Tue 2/6

11:15-14:45

2 stops22h 30m

Belfast Intl

Thu 4/6

10:15-22:05

1 stop16h 50m

£720

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sat 6/6

10:05-18:55

3 stops27h 50m

Belfast Intl

Sat 13/6

06:55-17:59

2 stops16h 04m

£735

Flights are sorted by cheapest return flights first.

Deals found on 4/5

Showing 1-10 of 34 resultsSorted by cheapest first
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Best time to book a flight from Massachusetts to Belfast

Have a flexible travel schedule? Discover the best time to fly to Belfast 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

How much does it cost for a return flight from Massachusetts to Belfast?

Related info for your journey

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

  • How long is the flight from Massachusetts to Belfast?

    A quick flight from Massachusetts to Belfast can take about 12h 40m. British Airways provides one of the quickest options available for as low as £672. The distance from Massachusetts to Belfast is about 2981 mi. This flight may include one or multiple stops.

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

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

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

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

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

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

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

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

See more FAQs

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

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Massachusetts to Belfast. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Belfast from Massachusetts.

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

Need flexible booking options for your flight to Belfast from Massachusetts? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes, Cheapflights offers price alerts on Massachusetts to Belfast flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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