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$309+ Cheap flights from Massachusetts to Belfast

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 3/6. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BHD
Dec 3 — Dec 101
Wed 12/3
Wed 12/10
1 adult, Economy
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Cheap flight deals from Massachusetts to Belfast

Keep the following information in mind while searching for Massachusetts to Belfast flight deals. Data was last updated November 3, 2025.

Round-trip from

$590
(Cheapflightsfares)

One-way from

$309
(Delta)

Popular in

December

Cheapest in

September

Average price

$661
From Massachusetts to Belfast
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One-way flight from Massachusetts to Belfast
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Highest demand for flights based on searches. 11% potential increase in price ($97 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($25 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find flight deals from Massachusetts to Belfast

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 November 3, 2025.

This Ticket deal was found by Cheapflights users on 11/1. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/98:50 pmBOS - BHD
1 stop15h 00mKLM
Tue 11/256:30 amBHD - BOS
1 stop11h 50mKLM
Deal found 11/1$531
This American Airlines deal was found by Cheapflights users on 11/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/97:25 pmBOS - BHD
1 stop9h 55mAmerican Airlines
Tue 11/2511:25 amBHD - BOS
1 stop13h 20mAmerican Airlines
Deal found 11/1$534
This Ticket deal was found by Cheapflights users on 11/1. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/98:50 pmBOS - BHD
1 stop15h 00mMultiple Airlines
Tue 11/256:30 amBHD - BOS
2 stops14h 44mMultiple Airlines
Deal found 11/1$538
This Delta deal was found by Cheapflights users on 11/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/97:10 pmBOS - BHD
1 stop20h 50mDelta
Tue 11/256:30 amBHD - BOS
1 stop11h 50mDelta
Deal found 11/1$555
This FlightHub deal was found by Cheapflights users on 11/2. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/67:30 amBOS - BHD
1 stop19h 00mBritish Airways
Sat 11/86:35 amBHD - BOS
2 stops18h 15mBritish Airways
Deal found 11/2$587
This Air France deal was found by Cheapflights users on 11/1. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/137:10 pmBOS - BHD
1 stop16h 40mMultiple Airlines
Mon 11/175:20 pmBHD - BOS
1 stop25h 00mMultiple Airlines
Deal found 11/1$607
This Trip.com deal was found by Cheapflights users on 11/1. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/911:43 amBOS - BFS
2 stops28h 47mMultiple Airlines
Tue 11/256:00 amBFS - BOS
1 stop15h 00mMultiple Airlines
Deal found 11/1$616
This Air France deal was found by Cheapflights users on 11/2. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/38:50 pmBOS - BHD
1 stop19h 10mKLM
Mon 11/105:20 pmBHD - BOS
1 stop25h 00mKLM
Deal found 11/2$626
This FlightHub deal was found by Cheapflights users on 11/1. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/137:30 amBOS - BHD
1 stop19h 00mBritish Airways
Mon 11/177:25 pmBHD - BOS
2 stops29h 36mBritish Airways
Deal found 11/1$650
This Cheapflightsfares deal was found by Cheapflights users on 11/2. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/147:30 amBOS - BHD
1 stop19h 55mBritish Airways
Thu 12/186:35 amBHD - BOS
1 stop20h 20mBritish Airways
Deal found 11/2$655
This Mytrip deal was found by Cheapflights users on 11/2. 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.
Thu 11/69:50 pmBOS - BFS
2 stops19h 30mMultiple Airlines
Sat 11/86:00 amBFS - BOS
2 stops17h 35mMultiple Airlines
Deal found 11/2$912
This Mytrip deal was found by Cheapflights users on 11/2. 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.
Sun 11/29:50 pmBOS - BFS
2 stops17h 25mMultiple Airlines
Sun 11/910:45 pmBFS - BOS
3 stops26h 10mMultiple Airlines
Deal found 11/2$1,075

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated November 3, 2025.
Use the filters below to find and compare flights from Massachusetts to Belfast that are best for you.

Fly from

Massachusetts

Fly to

Belfast

Route

Depart

Return

Price

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Fri 3/13

8:30 am-8:25 am

1 stop19h 55m

Belfast City

Fri 3/20

11:30 am-10:55 pm

1 stop15h 25m

$590

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Sun 3/8

8:50 pm-6:40 pm

2 stops17h 50m

Belfast City

Fri 3/13

6:45 am-6:50 pm

2 stops16h 05m

$614

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sun 3/8

8:50 pm-8:10 pm

2 stops19h 20m

Belfast Intl

Fri 3/13

6:30 am-6:50 pm

2 stops16h 20m

$614

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Fri 3/13

7:39 pm-2:15 pm

2 stops14h 36m

Belfast City

Fri 3/20

8:45 am-4:55 pm

1 stop12h 10m

$615

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Thu 11/13

7:30 am-7:30 am

1 stop19h 00m

Belfast City

Mon 11/17

7:25 pm-8:01 pm

2 stops29h 36m

$650

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Fri 5/1

9:50 pm-3:30 pm

1 stop12h 40m

Belfast City

Sat 5/9

7:05 am-10:35 pm

1 stop20h 30m

$652

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Sun 12/14

7:30 am-8:25 am

1 stop19h 55m

Belfast City

Thu 12/18

6:35 am-9:55 pm

1 stop20h 20m

$655

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Sun 3/8

7:55 pm-6:40 pm

1 stop18h 45m

Belfast City

Fri 3/13

11:30 am-10:55 pm

1 stop15h 25m

$664

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Sun 3/8

7:39 pm-1:55 pm

2 stops14h 16m

Belfast City

Fri 3/13

2:50 pm-10:55 pm

1 stop12h 05m

$679

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sun 3/15

6:10 pm-6:55 pm

2 stops20h 45m

Belfast Intl

Sun 3/29

8:10 pm-7:50 pm

3 stops28h 40m

$794

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/1

Showing 1-10 of 38 results
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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 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

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

Currently, September is the cheapest month in which you can book a flight from Massachusetts to Belfast (average of $534). Flying from Massachusetts to Belfast in December is currently the most expensive (average of $994). 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.

How much does it cost to fly round-trip 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?

    Departing from Massachusetts to Belfast will take you 14h 36m. There are 2981 mi between Massachusetts and Belfast. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Massachusetts to Belfast one-way?

    The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as $309. However, be on the lookout for offers from British Airways and American Airlines, as they are both options that can get you from Massachusetts to Belfast for a low price.

  • 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 Intl.

  • 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 vacation 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.

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

    Currently, September is the cheapest month in which you can book a flight from Massachusetts to Belfast (average of $534). Flying from Massachusetts to Belfast in December is currently the most expensive (average of $994). 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

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Alternative routes for Massachusetts to Belfast

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

Discover the top 2 airlines that operate flights from Massachusetts to Belfast. 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 November 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$538Average$676FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$565Average$694FlexibilityNo cancel feeOn-time71%

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