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Cheap flights from Massachusetts to Belfast from £213

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 — BHD
3 Aug — 10 Aug1
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 4 July 2026.

Sun 16/819:10
BOS
-
BFS
1 stop21h 45m
Multiple Airlines
Tue 1/907:35
BFS
-
BOS
2 stops42h 30m
Multiple Airlines
Deal found 30/6£502
Fri 18/910:50
BOS
-
BFS
2 stops30h 00m
Multiple Airlines
Tue 22/908:50
BFS
-
BOS
3 stops34h 55m
Multiple Airlines
Deal found 30/6£569
Fri 18/920:50
BOS
-
BHD
2 stops18h 40m
Multiple Airlines
Tue 22/917:00
BHD
-
BOS
3 stops32h 20m
Multiple Airlines
Deal found 30/6£573
Sun 30/823:45
BOS
-
BFS
2 stops18h 25m
Multiple Airlines
Sun 6/906:10
BFS
-
BOS
1 stop20h 35m
Multiple Airlines
Deal found 1/7£575
Wed 7/1020:50
BOS
-
BFS
2 stops18h 25m
Multiple Airlines
Wed 21/1009:35
BFS
-
BOS
2 stops34h 10m
Multiple Airlines
Deal found 1/7£591
Wed 16/910:50
BOS
-
BFS
2 stops25h 15m
Multiple Airlines
Sun 27/921:10
BFS
-
BOS
2 stops27h 45m
Multiple Airlines
Deal found 2/7£591
Sun 2/820:50
BOS
-
BFS
3 stops19h 40m
Multiple Airlines
Mon 17/820:35
BFS
-
BOS
3 stops26h 52m
Multiple Airlines
Deal found 1/7£593
Tue 29/920:50
BOS
-
BFS
2 stops19h 15m
Multiple Airlines
Mon 5/1009:10
BFS
-
BOS
2 stops34h 35m
Multiple Airlines
Deal found 29/6£597
Sat 10/1022:45
BOS
-
BFS
2 stops30h 00m
Multiple Airlines
Mon 19/1010:30
BFS
-
BOS
1 stop14h 50m
Multiple Airlines
Deal found 1/7£601
Fri 6/1119:50
BOS
-
BFS
2 stops21h 45m
Multiple Airlines
Sat 14/1108:50
BFS
-
BOS
3 stops34h 50m
Multiple Airlines
Deal found 1/7£604
Tue 6/1017:40
BOS
-
BFS
2 stops17h 15m
Multiple Airlines
Thu 22/1010:15
BFS
-
BOS
1 stop15h 50m
Multiple Airlines
Deal found 1/7£608
Wed 7/1020:50
BOS
-
BHD
2 stops17h 50m
Multiple Airlines
Wed 21/1007:00
BHD
-
BOS
2 stops19h 45m
Multiple Airlines
Deal found 1/7£616

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 4 July 2026.

Round-trip from

£502

One-way from

£213

Popular in

November

Cheapest in

February

Average price

£621
16/8-1/9
  • 16/8-1/9
  • 3 total stops
  • 64h 15m total
  • Massachusetts to Belfast
Search Deals
15/9
  • 15/9
  • 2 total stops
  • 26h 45m total
  • Massachusetts to Belfast
Search Deals
Highest demand for flights based on searches. 38% potential increase in price (£338 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 15% potential price decrease (£72 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 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 4 July 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

Sun 16/8

19:10-21:55

1 stop21h 45m

Belfast Intl

Tue 1/9

07:35-21:05

2 stops42h 30m

£502

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Fri 18/9

10:50-21:50

2 stops30h 00m

Belfast Intl

Tue 22/9

08:50-14:45

3 stops34h 55m

£569

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Wed 7/10

20:50-20:15

2 stops18h 25m

Belfast Intl

Wed 21/10

09:35-14:45

2 stops34h 10m

£591

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Wed 16/9

10:50-17:05

2 stops25h 15m

Belfast Intl

Sun 27/9

21:10-19:55

2 stops27h 45m

£591

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sat 10/10

22:45-09:45

2 stops30h 00m

Belfast Intl

Mon 19/10

10:30-20:20

1 stop14h 50m

£601

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Tue 29/9

20:50-21:05

2 stops19h 15m

Belfast Intl

Mon 5/10

21:05-20:20

3 stops28h 15m

£612

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Wed 4/11

21:30-16:35

1 stop14h 05m

Belfast City

Wed 11/11

11:25-19:40

1 stop13h 15m

£644

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Mon 17/8

10:40-11:15

2 stops19h 35m

Belfast Intl

Mon 24/8

20:35-21:27

2 stops29h 52m

£645

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Sun 8/11

12:03-08:35

2 stops15h 32m

Belfast City

Sat 14/11

11:35-21:50

1 stop15h 15m

£647

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sat 10/10

20:50-20:40

2 stops18h 50m

Belfast Intl

Tue 13/10

20:15-20:20

3 stops29h 05m

£648

Flights are sorted by cheapest return flights first.

Deals found on 1/7

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
No data available for this route at this time. Please check back soon.

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 05m. British Airways provides one of the quickest options available for as low as £644. 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.

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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