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Cheap flights from Massachusetts to Belfast from £241

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 28/9. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BHD
25 May — 1 Jun1
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 25 April 2026.

Mon 11/516:45
BOS
-
BFS
2 stops22h 15m
Multiple Airlines
Sun 17/520:20
BFS
-
BOS
2 stops23h 25m
Multiple Airlines
Deal found 23/4£556
Sun 1/1111:40
BOS
-
BFS
3 stops27h 30m
Multiple Airlines
Sat 7/1105:45
BFS
-
BOS
3 stops37h 55m
Multiple Airlines
Deal found 22/4£580
Sun 13/920:50
BOS
-
BFS
3 stops20h 40m
Multiple Airlines
Mon 21/908:40
BFS
-
BOS
3 stops35h 05m
Multiple Airlines
Deal found 25/4£629
Fri 5/610:05
BOS
-
BFS
2 stops30h 45m
Multiple Airlines
Thu 18/620:05
BFS
-
BOS
2 stops29h 50m
Multiple Airlines
Deal found 25/4£643
Sun 1/1111:40
BOS
-
BHD
3 stops27h 50m
Multiple Airlines
Sat 7/1107:25
BHD
-
BOS
2 stops15h 25m
Multiple Airlines
Deal found 22/4£652
Wed 12/819:35
BOS
-
BHD
1 stop13h 00m
British Airways
Thu 20/806:30
BHD
-
BOS
1 stop15h 30m
British Airways
Deal found 25/4£659
Sun 13/921:55
BOS
-
BHD
1 stop11h 40m
British Airways
Mon 21/911:35
BHD
-
BOS
1 stop10h 30m
British Airways
Deal found 25/4£661
Tue 2/610:05
BOS
-
BFS
2 stops25h 15m
Multiple Airlines
Sat 6/606:55
BFS
-
BOS
3 stops31h 50m
Multiple Airlines
Deal found 22/4£671
Mon 10/807:25
BOS
-
BHD
1 stop20h 25m
British Airways
Tue 18/813:45
BHD
-
BOS
1 stop13h 50m
British Airways
Deal found 25/4£672
Sun 15/1118:55
BOS
-
BHD
1 stop14h 00m
British Airways
Thu 19/1106:35
BHD
-
BOS
1 stop12h 45m
British Airways
Deal found 22/4£673
Thu 13/819:35
BOS
-
BHD
1 stop9h 35m
British Airways
Tue 18/813:45
BHD
-
BOS
1 stop13h 50m
British Airways
Deal found 25/4£674
Thu 13/819:35
BOS
-
BHD
1 stop9h 35m
British Airways
Fri 21/811:00
BHD
-
BOS
1 stop11h 00m
British Airways
Deal found 25/4£676

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 25 April 2026.

Round-trip from

£556

One-way from

£241

Popular in

November

Cheapest in

February

Average price

£590
11/5-17/5
  • 11/5-17/5
  • 4 total stops
  • 45h 40m total
  • Massachusetts to Belfast
Search Deals
28/9
  • 28/9
  • 3 total stops
  • 33h 45m total
  • Massachusetts to Belfast
Search Deals
Highest demand for flights based on searches. 29% potential increase in price (£178 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 April 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 25 April 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 - BHD

BOSBHD

Boston Logan Intl

Mon 10/8

07:25-08:50

1 stop20h 25m

Belfast City

Thu 20/8

09:35-17:00

1 stop12h 25m

£673

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Sat 15/8

19:35-10:05

1 stop9h 30m

Belfast City

Mon 17/8

19:35-16:55

1 stop26h 20m

£674

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Wed 17/6

05:50-17:05

3 stops30h 15m

Belfast Intl

Sat 20/6

07:20-21:27

3 stops19h 07m

£700

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Fri 28/8

19:05-16:55

1 stop16h 50m

Belfast City

Mon 31/8

09:50-22:36

2 stops17h 46m

£739

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sun 7/6

05:50-18:50

3 stops32h 00m

Belfast Intl

Sun 14/6

21:05-19:55

2 stops27h 50m

£745

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Wed 8/7

23:00-20:40

2 stops16h 40m

Belfast Intl

Tue 14/7

18:50-20:20

3 stops30h 30m

£746

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Tue 19/5

15:17-10:45

2 stops14h 28m

Belfast City

Tue 26/5

16:25-22:35

1 stop11h 10m

£747

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Wed 1/7

15:35-20:05

2 stops23h 30m

Belfast Intl

Wed 8/7

21:10-14:41

2 stops22h 31m

£762
Fastest return journey

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Fri 7/8

16:45-09:20

1 stop11h 35m

Belfast City

Fri 14/8

09:50-18:30

1 stop13h 40m

£768

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Fri 7/8

19:35-18:10

1 stop17h 35m

Belfast City

Fri 14/8

11:00-22:30

2 stops16h 30m

£810

Flights are sorted by cheapest return flights first.

Deals found on 24/4

Showing 1-10 of 38 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

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 14h 10m. British Airways provides one of the quickest options available for as low as £1,473. The distance from Massachusetts to Belfast is about 3066 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.

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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