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Cheap flights from Massachusetts to Belfast from £167

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 8/4. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BHD
17 Jan — 24 Jan1
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 18 December 2025.

Mon 22/1206:14BOS - BHD
2 stops22h 51mBritish Airways
Mon 29/1206:35BHD - BOS
1 stop12h 45mBritish Airways
Deal found 16/12£1,259
Mon 22/1220:50BOS - BHD
1 stop19h 10mKLM
Mon 29/1206:30BHD - BOS
1 stop11h 50mKLM
Deal found 16/12£1,319
Mon 22/1205:45BOS - BHD
3 stops33h 45mMultiple Airlines
Mon 29/1214:15BHD - BOS
2 stops35h 05mMultiple Airlines
Deal found 16/12£1,634
Tue 23/1215:48BOS - BHD
2 stops19h 57mBritish Airways
Sat 3/106:35BHD - BOS
2 stops20h 23mBritish Airways
Deal found 17/12£1,853
Tue 23/1217:00BOS - BHD
2 stops18h 50mDelta
Sat 3/106:30BHD - BOS
2 stops19h 38mDelta
Deal found 16/12£2,328
Tue 23/1219:15BOS - BHD
1 stop14h 35mMultiple Airlines
Sat 3/111:35BHD - BOS
1 stop13h 10mMultiple Airlines
Deal found 17/12£2,517
Tue 23/1219:15BOS - BHD
1 stop11h 15mFinnair
Sat 3/111:35BHD - BOS
1 stop15h 20mFinnair
Deal found 16/12£2,541

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 18 December 2025.

Round-trip from

£410

One-way from

£167

Popular in

November

Cheapest in

September

Average price

£913
American Airlines
  • American Airlines
  • 11/1-27/1
  • 2 total stops
  • 24h 45m total
  • Massachusetts to Belfast
Search Deals
British Airways
  • British Airways
  • 8/4
  • 1 total stop
  • 10h 40m total
  • Massachusetts to Belfast
Search Deals
Highest demand for flights based on searches. 25% potential increase in price (£162 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease (£34 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
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 18 December 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

Sun 11/1

19:15-10:20

1 stop10h 05m

Belfast City

Tue 27/1

06:35-16:15

1 stop14h 40m

£410

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sun 11/1

19:50-18:15

2 stops17h 25m

Belfast Intl

Tue 27/1

06:30-17:50

2 stops16h 20m

£425

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Fri 23/1

15:35-10:30

2 stops13h 55m

Belfast City

Fri 30/1

08:45-19:45

1 stop16h 00m

£446

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Thu 29/1

07:30-10:20

1 stop21h 50m

Belfast City

Mon 2/2

17:45-14:20

1 stop25h 35m

£449

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Fri 1/5

15:34-18:15

2 stops21h 41m

Belfast City

Mon 4/5

09:50-20:05

1 stop15h 15m

£511

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Wed 15/4

07:25-08:50

1 stop20h 25m

Belfast City

Fri 24/4

11:55-23:26

2 stops16h 31m

£542

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sat 31/1

21:15-21:40

2 stops19h 25m

Belfast Intl

Sat 7/2

07:20-18:59

2 stops16h 39m

£550

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Sun 19/4

21:55-14:40

1 stop11h 45m

Belfast City

Sat 25/4

19:00-17:41

2 stops27h 41m

£566

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Wed 8/4

21:50-13:30

1 stop10h 40m

£167

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sat 31/1

22:25-18:25

3 stops39h 00m

£209

Flights are sorted by cheapest return flights first.

Deals found on 17/12

Showing 1-10 of 19 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 £399). Flying from Massachusetts to Belfast in December is currently the most expensive (average of £759). 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 05m. American Airlines provides one of the quickest options available for as low as £410. 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 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 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 £399). Flying from Massachusetts to Belfast in December is currently the most expensive (average of £759). 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

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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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