Cheap flights from Massachusetts to Belfast Intl Airport from £174

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 15/9. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BFS
22 Aug — 29 Aug1
1 adult

Cheap flight deals from Massachusetts to Belfast Intl

Keep the following information in mind while searching for Massachusetts to Belfast Intl flight deals. Data was last updated 17 August 2025.

Round-trip from

£440

One-way from

£174

Popular in

December

Cheapest in

February

Average price

£493
29/9-6/10
  • 29/9-6/10
  • 4 total stops
  • 49h 40m total
  • Massachusetts to Belfast
15/9
  • 15/9
  • 2 total stops
  • 13h 45m total
  • Massachusetts to Belfast
Highest demand for flights based on searches. 12% potential increase in price (£57 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£14 potential savings vs. average return price).
Average for round-trip flights in August 2025

Find flight deals from Massachusetts to Belfast Intl

Cheapest flights from Massachusetts to Belfast Intl
Explore the most affordable flight options available from Massachusetts to Belfast Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 August 2025.

Mon 29/920:05BOS - BFS
2 stops22h 45mMultiple Airlines
Mon 6/1017:30BFS - BOS
2 stops26h 55mMultiple Airlines
Deal found 14/8£440
Tue 30/917:30BOS - BFS
2 stops16h 30mMultiple Airlines
Tue 7/1007:05BFS - BOS
2 stops16h 40mMultiple Airlines
Deal found 16/8£443
Tue 30/921:25BOS - BFS
2 stops14h 15mMultiple Airlines
Mon 6/1020:55BFS - BOS
3 stops46h 25mMultiple Airlines
Deal found 17/8£464
Mon 15/920:50BOS - BFS
2 stops20h 40mMultiple Airlines
Mon 22/921:00BFS - BOS
3 stops28h 05mMultiple Airlines
Deal found 16/8£479
Wed 1/1012:20BOS - BFS
2 stops27h 15mMultiple Airlines
Mon 6/1020:55BFS - BOS
3 stops46h 25mMultiple Airlines
Deal found 17/8£487

Cheapflights Fare Finder

 
Customise your flight search to find flights from Massachusetts to Belfast Intl 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 17 August 2025.
Use the filters below to find and compare flights from Massachusetts to Belfast Intl Airport that are best for you.

Fly from

Massachusetts

Fly to

Belfast Intl

Route

Depart

Return

Price

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Mon 29/9

20:05-23:50

2 stops22h 45m

Belfast Intl

Mon 6/10

17:30-15:25

2 stops26h 55m

£440

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Tue 30/9

17:30-15:00

2 stops16h 30m

Belfast Intl

Tue 7/10

07:05-18:45

2 stops16h 40m

£443

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Tue 30/9

21:25-16:40

2 stops14h 15m

Belfast Intl

Mon 6/10

20:55-14:20

3 stops46h 25m

£464

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Mon 15/9

20:50-22:30

2 stops20h 40m

Belfast Intl

Mon 22/9

21:00-20:05

3 stops28h 05m

£479

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Wed 1/10

12:20-20:35

2 stops27h 15m

Belfast Intl

Mon 6/10

20:55-14:20

3 stops46h 25m

£487

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Mon 15/9

21:25-16:10

2 stops13h 45m

£174

Flights are sorted by cheapest return flights first.

Deals found on 15/8

Best time to book a flight from Massachusetts to Belfast Intl

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

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

Currently, January is the cheapest month in which you can book a flight from Massachusetts to Belfast Intl Airport (average of £67). Flying from Massachusetts to Belfast Intl Airport in July is currently the most expensive (average of £90). 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 Intl Airport?

Related info for your journey

Find useful and relevant information for your journey from Massachusetts to Belfast Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • Can I find deals for flights from Massachusetts to Belfast Intl that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Massachusetts to Belfast Intl 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 Intl Airport?

    Currently, January is the cheapest month in which you can book a flight from Massachusetts to Belfast Intl Airport (average of £67). Flying from Massachusetts to Belfast Intl Airport in July is currently the most expensive (average of £90). 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

Travelling to a place near Belfast Intl Airport?

Book flights to Belfast Intl Airport if you plan to visit one of these locations
Armagh
Newry
Ballymena
Cookstown
Dungannon

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Massachusetts to Belfast Intl flexibly with Cheapflights today.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Belfast Intl from Massachusetts today and book when prices fit your budget.

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