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Cheap flights from Massachusetts to Belfast from £221

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 8/9. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BHD
16 Apr — 23 Apr1
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 17 March 2026.

Mon 13/423:00
BOS
-
BFS
2 stops16h 25m
Multiple Airlines
Wed 29/407:00
BFS
-
BOS
2 stops43h 45m
Multiple Airlines
Deal found 15/3£463
Mon 27/423:00
BOS
-
BFS
2 stops16h 25m
Multiple Airlines
Mon 4/506:10
BFS
-
BOS
2 stops20h 35m
Multiple Airlines
Deal found 13/3£482
Mon 13/423:00
BOS
-
BHD
2 stops16h 30m
Multiple Airlines
Wed 29/407:00
BHD
-
BOS
2 stops43h 45m
Multiple Airlines
Deal found 15/3£485
Wed 29/418:05
BOS
-
BFS
2 stops16h 30m
Multiple Airlines
Wed 6/506:10
BFS
-
BOS
2 stops19h 10m
Multiple Airlines
Deal found 14/3£515
Thu 14/520:50
BOS
-
BFS
2 stops21h 40m
Multiple Airlines
Mon 18/507:00
BFS
-
BOS
2 stops40h 50m
Multiple Airlines
Deal found 14/3£548
Mon 4/522:45
BOS
-
BFS
2 stops16h 40m
Multiple Airlines
Wed 13/506:10
BFS
-
BOS
2 stops19h 10m
Multiple Airlines
Deal found 15/3£557
Wed 29/418:05
BOS
-
BHD
2 stops16h 00m
Multiple Airlines
Sat 9/507:00
BHD
-
BOS
2 stops18h 20m
Multiple Airlines
Deal found 16/3£571
Tue 28/420:50
BOS
-
BFS
3 stops19h 30m
Multiple Airlines
Tue 5/520:15
BFS
-
BOS
3 stops47h 30m
Multiple Airlines
Deal found 14/3£577
Mon 4/522:45
BOS
-
BHD
2 stops16h 45m
Multiple Airlines
Wed 13/507:00
BHD
-
BOS
2 stops18h 20m
Multiple Airlines
Deal found 15/3£578
Tue 6/1023:00
BOS
-
BFS
2 stops19h 10m
Multiple Airlines
Tue 13/1008:00
BFS
-
BOS
2 stops18h 45m
Multiple Airlines
Deal found 13/3£584
Thu 3/917:40
BOS
-
BFS
2 stops22h 50m
Multiple Airlines
Mon 7/908:00
BFS
-
BOS
2 stops36h 35m
Multiple Airlines
Deal found 14/3£585
Sat 25/423:00
BOS
-
BFS
2 stops16h 15m
Multiple Airlines
Fri 1/506:05
BFS
-
BOS
2 stops20h 40m
Multiple Airlines
Deal found 14/3£587

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 17 March 2026.

Round-trip from

£463

One-way from

£221

Popular in

November

Cheapest in

February

Average price

£449
13/4-29/4
  • 13/4-29/4
  • 4 total stops
  • 60h 10m total
  • Massachusetts to Belfast
Search Deals
British Airways
  • British Airways
  • 8/9
  • 2 total stops
  • 14h 38m total
  • Massachusetts to Belfast
Search Deals
Highest demand for flights based on searches. 28% potential increase in price (£180 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 March 2026
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 17 March 2026.
Use the filters below to find and compare flights from Massachusetts to Belfast that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Mon 27/4

23:00-20:25

2 stops16h 25m

Belfast Intl

Mon 4/5

06:10-21:45

2 stops20h 35m

£482

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Wed 29/4

18:05-15:35

2 stops16h 30m

Belfast Intl

Wed 6/5

06:10-20:20

2 stops19h 10m

£515

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Tue 28/4

20:50-21:20

3 stops19h 30m

Belfast Intl

Tue 5/5

20:15-14:45

3 stops47h 30m

£577

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Mon 11/5

20:50-15:30

2 stops13h 40m

Belfast Intl

Wed 27/5

06:10-21:45

2 stops20h 35m

£601

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Mon 13/4

23:00-20:25

2 stops16h 25m

Belfast Intl

Wed 29/4

20:15-20:20

3 stops29h 05m

£602

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Mon 13/4

22:45-20:25

2 stops16h 40m

Belfast Intl

Mon 20/4

08:15-14:45

3 stops35h 30m

£605

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Thu 14/5

21:50-23:25

1 stop20h 35m

Belfast Intl

Mon 18/5

06:40-20:05

1 stop18h 25m

£623

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Mon 4/5

19:35-12:55

1 stop12h 20m

Belfast City

Wed 13/5

11:35-23:52

2 stops17h 17m

£633

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sat 4/4

20:50-23:25

3 stops21h 35m

Belfast Intl

Sat 11/4

08:30-14:40

3 stops35h 10m

£643

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Mon 13/4

15:35-23:10

3 stops26h 35m

Belfast Intl

Sun 19/4

07:10-20:20

3 stops42h 10m

£649

Flights are sorted by cheapest return flights first.

Deals found on 14/3

Showing 1-10 of 40 resultsSorted by cheapest first
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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, March is the cheapest month in which you can book a flight from Massachusetts to Belfast (average of £394). Flying from Massachusetts to Belfast in December is currently the most expensive (average of £761). 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 12h 20m. American Airlines provides one of the quickest options available for as low as £633. 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, March is the cheapest month in which you can book a flight from Massachusetts to Belfast (average of £394). Flying from Massachusetts to Belfast in December is currently the most expensive (average of £761). 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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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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