Cheap flights from Massachusetts to Belfast from £227

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 12/2. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BHD
23 Nov — 30 Nov1
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 24 October 2025.

Round-trip from

£404

One-way from

£229

Popular in

December

Cheapest in

September

Average price

£499
American Airlines
  • American Airlines
  • 17/11-3/12
  • 2 total stops
  • 24h 40m total
  • Massachusetts to Belfast
Delta
  • Delta
  • 6/3
  • 1 total stop
  • 15h 00m total
  • Massachusetts to Belfast
Highest demand for flights based on searches. 11% potential increase in price (£53 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£15 potential savings vs. average return price).
Average for round-trip flights in October 2025

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 24 October 2025.

Mon 17/1119:25BOS - BHD
1 stop10h 15mAmerican Airlines
Wed 3/1206:35BHD - BOS
1 stop14h 25mAmerican Airlines
Deal found 23/10£404
Mon 17/1117:00BOS - BHD
2 stops23h 00mDelta
Wed 3/1206:30BHD - BOS
1 stop11h 50mDelta
Deal found 23/10£419
Mon 17/1117:00BOS - BFS
2 stops23h 10mMultiple Airlines
Wed 3/1207:00BFS - BOS
1 stop16h 35mMultiple Airlines
Deal found 23/10£435
Mon 17/1115:47BOS - BHD
2 stops13h 53mBritish Airways
Wed 3/1219:25BHD - BOS
2 stops32h 23mBritish Airways
Deal found 23/10£442
Mon 27/1022:20BOS - BHD
2 stops30h 05mBritish Airways
Wed 29/1011:25BHD - BOS
1 stop15h 30mBritish Airways
Deal found 23/10£447
Thu 13/1119:10BOS - BHD
1 stop16h 40mMultiple Airlines
Mon 17/1117:20BHD - BOS
1 stop25h 00mMultiple Airlines
Deal found 23/10£457
Thu 20/1107:30BOS - BHD
1 stop19h 00mBritish Airways
Thu 27/1106:35BHD - BOS
1 stop18h 10mBritish Airways
Deal found 23/10£469
Thu 13/1117:10BOS - BFS
2 stops22h 15mMultiple Airlines
Mon 17/1120:50BFS - BOS
2 stops22h 05mMultiple Airlines
Deal found 23/10£474
Sun 7/1217:10BOS - BFS
2 stops20h 45mMultiple Airlines
Sun 14/1207:10BFS - BOS
2 stops16h 45mMultiple Airlines
Deal found 23/10£483
Thu 13/1119:25BOS - BHD
1 stop18h 25mAmerican Airlines
Mon 17/1106:35BHD - BOS
1 stop14h 35mAmerican Airlines
Deal found 23/10£487
Thu 13/1107:30BOS - BHD
1 stop21h 50mBritish Airways
Mon 17/1119:25BHD - BOS
2 stops29h 36mBritish Airways
Deal found 23/10£490
Sat 6/1210:15BOS - BFS
2 stops19h 40mMultiple Airlines
Sat 13/1209:40BFS - BOS
2 stops33h 25mMultiple Airlines
Deal found 22/10£509

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 24 October 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

Mon 17/11

19:25-10:40

1 stop10h 15m

Belfast City

Wed 3/12

06:35-16:00

1 stop14h 25m

£404

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Mon 17/11

17:00-21:00

2 stops23h 00m

Belfast City

Wed 3/12

06:30-13:20

1 stop11h 50m

£419

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Mon 17/11

17:00-21:10

2 stops23h 10m

Belfast Intl

Wed 3/12

07:00-18:35

1 stop16h 35m

£435

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Mon 17/11

15:47-10:40

2 stops13h 53m

Belfast City

Wed 3/12

19:25-22:48

2 stops32h 23m

£442

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Thu 13/11

19:10-16:50

1 stop16h 40m

Belfast City

Mon 17/11

17:20-13:20

1 stop25h 00m

£457

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Thu 20/11

07:30-07:30

1 stop19h 00m

Belfast City

Thu 27/11

06:35-19:45

1 stop18h 10m

£469

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Thu 13/11

17:10-20:25

2 stops22h 15m

Belfast Intl

Mon 17/11

20:50-13:55

2 stops22h 05m

£479

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sun 7/12

17:10-18:55

2 stops20h 45m

Belfast Intl

Sun 14/12

07:10-18:55

2 stops16h 45m

£483

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Thu 13/11

19:25-18:50

1 stop18h 25m

Belfast City

Mon 17/11

06:35-16:10

1 stop14h 35m

£487

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Thu 13/11

07:30-10:20

1 stop21h 50m

Belfast City

Mon 17/11

19:25-20:01

2 stops29h 36m

£490

Flights are sorted by cheapest return flights first.

Deals found on 23/10

Showing 1-10 of 26 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 £400). Flying from Massachusetts to Belfast in December is currently the most expensive (average of £745). 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 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 10h 15m. American Airlines provides one of the quickest options available for as low as £404. 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?

  • 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 £400). Flying from Massachusetts to Belfast in December is currently the most expensive (average of £745). 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.

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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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