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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 6/3. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BHD
14 Dec — 21 Dec1
1 adult
1 adult, Economy, 0 bags

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 14 November 2025.

Round-trip from

£407

One-way from

£235

Popular in

November

Cheapest in

September

Average price

£1,131
American Airlines
  • American Airlines
  • 2/12-9/12
  • 2 total stops
  • 22h 15m total
  • Massachusetts to Belfast
Search Deals
Delta
  • Delta
  • 6/3
  • 2 total stops
  • 22h 47m total
  • Massachusetts to Belfast
Search Deals
Highest demand for flights based on searches. 22% potential increase in price (£139 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease (£36 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
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Find 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 14 November 2025.

Tue 2/1219:15BOS - BHD
1 stop11h 15mAmerican Airlines
Tue 9/1210:00BHD - BOS
1 stop11h 00mAmerican Airlines
Deal found 13/11£407
Wed 10/1217:10BOS - BFS
2 stops18h 00mMultiple Airlines
Wed 17/1210:50BFS - BOS
2 stops13h 05mMultiple Airlines
Deal found 12/11£442
Wed 10/1207:30BOS - BHD
1 stop19h 45mBritish Airways
Wed 17/1219:25BHD - BOS
1 stop29h 20mBritish Airways
Deal found 12/11£448
Sun 23/1119:15BOS - BHD
1 stop13h 00mBritish Airways
Wed 17/1219:25BHD - BOS
2 stops29h 25mBritish Airways
Deal found 12/11£452
Tue 2/1205:30BOS - BFS
3 stops26h 55mMultiple Airlines
Tue 9/1220:55BFS - BOS
2 stops28h 25mMultiple Airlines
Deal found 13/11£464
Wed 19/1119:25BOS - BHD
1 stop9h 50mBritish Airways
Mon 1/1219:25BHD - BOS
1 stop25h 45mBritish Airways
Deal found 12/11£486
Tue 2/1217:10BOS - BHD
2 stops14h 45mAer Lingus
Tue 9/1206:55BHD - BOS
2 stops17h 00mAer Lingus
Deal found 13/11£489
Sun 23/1119:50BOS - BFS
2 stops21h 05mMultiple Airlines
Wed 17/1206:30BFS - BOS
3 stops42h 40mMultiple Airlines
Deal found 12/11£515
Fri 12/1219:50BOS - BFS
3 stops24h 05mMultiple Airlines
Mon 15/1207:00BFS - BOS
3 stops36h 45mMultiple Airlines
Deal found 13/11£527
Sat 13/1219:50BOS - BFS
2 stops21h 50mMultiple Airlines
Sat 20/1222:25BFS - BOS
3 stops26h 35mMultiple Airlines
Deal found 13/11£660
Wed 12/1117:45BDL - BHD
2 stops22h 15mDelta
Sun 16/1106:30BHD - BDL
2 stops19h 35mDelta
Deal found 11/11£909

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 14 November 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

Tue 2/12

19:15-10:30

1 stop10h 15m

Belfast City

Tue 9/12

06:35-16:23

2 stops14h 48m

£415

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Wed 10/12

17:10-16:10

2 stops18h 00m

Belfast Intl

Wed 17/12

10:50-18:55

2 stops13h 05m

£442

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Fri 13/3

19:55-10:30

1 stop10h 35m

Belfast City

Fri 20/3

08:45-20:45

1 stop16h 00m

£448

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Thu 5/3

21:35-16:40

1 stop14h 05m

Belfast City

Tue 17/3

08:45-20:45

1 stop16h 00m

£448

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Sun 23/11

19:15-13:15

1 stop13h 00m

Belfast City

Wed 17/12

19:25-19:50

2 stops29h 25m

£452

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Thu 5/3

15:45-10:20

2 stops13h 35m

Belfast City

Tue 17/3

10:00-16:55

1 stop10h 55m

£456

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Wed 10/12

06:05-08:15

2 stops21h 10m

Belfast City

Wed 17/12

19:25-19:50

2 stops29h 25m

£456

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Tue 2/12

05:30-13:25

3 stops26h 55m

Belfast Intl

Tue 9/12

20:55-20:20

2 stops28h 25m

£464

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Fri 13/3

19:39-14:15

2 stops14h 36m

Belfast City

Fri 20/3

08:45-16:55

1 stop12h 10m

£467

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Tue 2/12

17:10-12:55

2 stops14h 45m

Belfast City

Tue 9/12

06:55-18:55

2 stops17h 00m

£489

Flights are sorted by cheapest return flights first.

Deals found on 12/11

Showing 1-10 of 23 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 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

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 £406). Flying from Massachusetts to Belfast in December is currently the most expensive (average of £756). 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. 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 10h 15m. American Airlines provides one of the quickest options available for as low as £415. 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.

  • 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 £406). Flying from Massachusetts to Belfast in December is currently the most expensive (average of £756). 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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Fly with Cheapflights

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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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