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Cheap flights from Massachusetts to Belfast from £235

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 11/9. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BHD
8 Jun — 15 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 9 May 2026.

Thu 1/1020:50
BOS
-
BFS
2 stops21h 15m
Multiple Airlines
Mon 5/1009:10
BFS
-
BOS
2 stops34h 35m
Multiple Airlines
Deal found 9/5£636
Thu 16/723:35
BOS
-
BFS
2 stops18h 55m
Multiple Airlines
Wed 29/717:45
BFS
-
BOS
1 stop33h 00m
Multiple Airlines
Deal found 7/5£651
Sun 16/819:30
BOS
-
BHD
1 stop10h 00m
British Airways
Sun 30/806:30
BHD
-
BOS
1 stop18h 40m
British Airways
Deal found 9/5£658
Thu 1/1021:50
BOS
-
BHD
1 stop12h 40m
British Airways
Mon 5/1006:30
BHD
-
BOS
1 stop15h 30m
British Airways
Deal found 9/5£661
Mon 19/1007:25
BOS
-
BHD
1 stop20h 25m
British Airways
Thu 22/1012:45
BHD
-
BOS
1 stop12h 20m
British Airways
Deal found 7/5£668
Fri 8/520:25
BOS
-
BHD
1 stop31h 55m
Virgin Atlantic
Thu 21/517:30
BHD
-
BOS
1 stop30h 00m
Virgin Atlantic
Deal found 7/5£678
Sun 10/520:10
BOS
-
BHD
1 stop17h 35m
American Airlines
Sun 17/506:30
BHD
-
BOS
1 stop12h 00m
American Airlines
Deal found 9/5£681
Sat 9/518:50
BOS
-
BHD
1 stop17h 05m
Delta
Fri 22/509:50
BHD
-
BOS
1 stop11h 35m
Delta
Deal found 8/5£687
Sat 9/513:10
BOS
-
BHD
2 stops15h 10m
KLM
Fri 22/509:50
BHD
-
BOS
1 stop11h 35m
KLM
Deal found 8/5£688
Sun 16/820:50
BOS
-
BFS
3 stops21h 00m
Multiple Airlines
Sun 30/822:00
BFS
-
BOS
3 stops28h 45m
Multiple Airlines
Deal found 8/5£688
Sat 9/513:10
BOS
-
BHD
2 stops15h 10m
KLM
Sat 16/517:30
BHD
-
BOS
1 stop24h 40m
KLM
Deal found 8/5£691
Wed 3/610:35
BOS
-
BFS
3 stops30h 55m
Multiple Airlines
Wed 10/606:35
BFS
-
BOS
2 stops18h 35m
Multiple Airlines
Deal found 9/5£731

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 9 May 2026.

Round-trip from

£636

One-way from

£235

Popular in

November

Cheapest in

February

Average price

£607
1/10-5/10
  • 1/10-5/10
  • 4 total stops
  • 55h 50m total
  • Massachusetts to Belfast
Search Deals
11/9
  • 11/9
  • 3 total stops
  • 42h 50m total
  • Massachusetts to Belfast
Search Deals
Highest demand for flights based on searches. 29% potential increase in price (£176 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease (£35 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 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 9 May 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

Thu 1/10

20:50-23:05

2 stops21h 15m

Belfast Intl

Mon 5/10

09:10-14:45

2 stops34h 35m

£636

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Thu 16/7

23:35-23:30

2 stops18h 55m

Belfast Intl

Wed 29/7

17:45-21:45

1 stop33h 00m

£651

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Mon 19/10

07:25-08:50

1 stop20h 25m

Belfast City

Thu 22/10

12:45-20:05

1 stop12h 20m

£668

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Sun 16/8

12:56-10:30

2 stops16h 34m

Belfast City

Sun 30/8

11:00-20:10

1 stop14h 10m

£675

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sun 16/8

20:50-21:20

2 stops19h 30m

Belfast Intl

Sun 30/8

22:00-21:45

3 stops28h 45m

£703

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Wed 3/6

10:35-22:30

3 stops30h 55m

Belfast Intl

Wed 10/6

06:35-20:10

2 stops18h 35m

£731

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Fri 19/6

10:50-16:30

2 stops24h 40m

Belfast Intl

Fri 26/6

22:15-22:38

2 stops29h 23m

£773

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Fri 19/6

10:40-16:30

3 stops24h 50m

Belfast Intl

Thu 25/6

21:05-14:41

2 stops22h 36m

£783

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Fri 22/5

17:25-16:30

2 stops18h 05m

Belfast Intl

Tue 26/5

23:30-14:55

2 stops20h 25m

£797

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Tue 19/5

05:50-11:55

3 stops25h 05m

Belfast City

Fri 22/5

07:00-09:05

3 stops31h 05m

£799

Flights are sorted by cheapest return flights first.

Deals found on 5/5

Showing 1-10 of 28 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 20h 25m. British Airways provides one of the quickest options available for as low as £668. The distance from Massachusetts to Belfast is about 2981 mi.

  • 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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