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Cheap flights from Massachusetts to Belfast from £202

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 26/9. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BHD
10 Jul — 17 Jul1
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 10 June 2026.

Sun 20/920:50
BOS
-
BFS
2 stops20h 45m
Multiple Airlines
Wed 23/909:35
BFS
-
BOS
1 stop16h 30m
Multiple Airlines
Deal found 9/6£517
Sun 4/1020:50
BOS
-
BFS
2 stops12h 00m
Multiple Airlines
Wed 7/1009:35
BFS
-
BOS
1 stop16h 30m
Multiple Airlines
Deal found 9/6£577
Wed 2/920:50
BOS
-
BFS
2 stops16h 05m
Multiple Airlines
Mon 7/915:35
BFS
-
BOS
2 stops32h 15m
Multiple Airlines
Deal found 9/6£583
Mon 15/620:50
BOS
-
BFS
2 stops29h 40m
Multiple Airlines
Wed 24/617:45
BFS
-
BOS
1 stop33h 20m
Multiple Airlines
Deal found 7/6£646
Sun 20/921:55
BOS
-
BHD
1 stop11h 40m
British Airways
Wed 23/916:05
BHD
-
BOS
1 stop11h 30m
British Airways
Deal found 9/6£647
Wed 25/1119:50
BOS
-
BFS
2 stops18h 30m
Multiple Airlines
Sun 29/1107:00
BFS
-
BOS
3 stops36h 40m
Multiple Airlines
Deal found 10/6£654
Sun 4/1021:55
BOS
-
BHD
1 stop11h 40m
British Airways
Wed 7/1010:05
BHD
-
BOS
2 stops16h 24m
British Airways
Deal found 9/6£655
Wed 2/920:50
BOS
-
BHD
2 stops13h 15m
Multiple Airlines
Mon 7/907:00
BHD
-
BOS
2 stops16h 50m
Multiple Airlines
Deal found 9/6£665
Wed 5/820:50
BOS
-
BFS
2 stops18h 25m
Multiple Airlines
Wed 12/822:45
BFS
-
BOS
2 stops25h 30m
Multiple Airlines
Deal found 8/6£665
Wed 25/1119:50
BOS
-
BHD
2 stops20h 15m
Multiple Airlines
Sun 29/1107:00
BHD
-
BOS
3 stops36h 40m
Multiple Airlines
Deal found 10/6£673
Wed 25/1121:30
BOS
-
BHD
1 stop11h 45m
British Airways
Sun 29/1112:10
BHD
-
BOS
1 stop14h 40m
British Airways
Deal found 10/6£678
Thu 1/1021:50
BOS
-
BHD
1 stop12h 40m
British Airways
Tue 6/1012:40
BHD
-
BOS
1 stop12h 25m
British Airways
Deal found 7/6£687

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 10 June 2026.

Round-trip from

£517

One-way from

£202

Popular in

November

Cheapest in

February

Average price

£723
20/9-23/9
  • 20/9-23/9
  • 3 total stops
  • 37h 15m total
  • Massachusetts to Belfast
Search Deals
26/9
  • 26/9
  • 3 total stops
  • 34h 30m total
  • Massachusetts to Belfast
Search Deals
Highest demand for flights based on searches. 30% potential increase in price (£203 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease (£34 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 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 10 June 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

Wed 2/9

20:50-17:55

2 stops16h 05m

Belfast Intl

Mon 7/9

15:35-18:50

2 stops32h 15m

£583

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sun 20/9

20:50-21:30

2 stops19h 40m

Belfast Intl

Wed 23/9

08:30-21:45

2 stops18h 15m

£651

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Wed 25/11

19:50-19:20

2 stops18h 30m

Belfast Intl

Sun 29/11

07:00-14:40

3 stops36h 40m

£654

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Thu 3/9

17:40-21:45

2 stops23h 05m

Belfast Intl

Mon 7/9

10:50-15:35

3 stops33h 45m

£697

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Sun 13/9

07:25-10:30

1 stop22h 05m

Belfast City

Thu 17/9

14:20-20:05

1 stop10h 45m

£709

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Thu 3/9

17:40-20:50

2 stops22h 10m

Belfast City

Mon 7/9

15:25-15:35

3 stops29h 10m

£715

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Fri 4/9

21:50-15:30

1 stop12h 40m

Belfast City

Mon 7/9

09:40-20:05

1 stop15h 25m

£716

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Wed 2/9

18:26-15:40

2 stops16h 14m

Belfast City

Mon 7/9

15:20-22:35

1 stop12h 15m

£718

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Fri 4/9

20:25-09:15

1 stop31h 50m

Belfast City

Mon 7/9

09:50-13:19

1 stop32h 29m

£725

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Thu 3/9

11:53-10:10

2 stops17h 17m

Belfast City

Mon 7/9

15:20-22:35

1 stop12h 15m

£727

Flights are sorted by cheapest return flights first.

Deals found on 8/6

Showing 1-10 of 25 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 £384). Flying from Massachusetts to Belfast in December is currently the most expensive (average of £742). 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 22h 05m. British Airways provides one of the quickest options available for as low as £709. 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.

  • 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 £384). Flying from Massachusetts to Belfast in December is currently the most expensive (average of £742). 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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