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Cheap flights from Boston to Northern Ireland from £181

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 28/1. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BFS
14 Jan — 21 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Boston to Northern Ireland

Enter your travel dates to find the best prices.

Cheapest flights from Boston to Northern Ireland
Explore the most affordable flight options available from Boston to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 December 2025.

Fri 26/1219:15BOS - BHD
1 stop32h 00mBritish Airways
Sun 4/112:10BHD - BOS
1 stop32h 50mBritish Airways
Deal found 12/12£1,494
Tue 23/1219:25BOS - BHD
2 stops16h 20mMultiple Airlines
Sat 3/109:45BHD - BOS
2 stops19h 31mMultiple Airlines
Deal found 14/12£2,009
Mon 22/1219:56BOS - BHD
2 stops34h 34mMultiple Airlines
Sun 4/112:10BHD - BOS
2 stops36h 50mMultiple Airlines
Deal found 12/12£2,032
Mon 22/1219:15BOS - BHD
2 stops12h 00mBritish Airways
Sun 4/120:25BHD - BOS
1 stop24h 35mBritish Airways
Deal found 12/12£2,035
Mon 22/1220:50BOS - BHD
1 stop19h 10mKLM
Sun 4/106:30BHD - BOS
1 stop12h 00mKLM
Deal found 12/12£2,060
Tue 23/1219:15BOS - BHD
1 stop14h 35mBritish Airways
Sat 3/118:55BHD - BOS
2 stops26h 05mBritish Airways
Deal found 14/12£2,141
Tue 23/1219:15BOS - BHD
1 stop11h 15mFinnair
Sat 3/111:35BHD - BOS
1 stop15h 20mFinnair
Deal found 13/12£2,506
Tue 23/1219:10BOS - BHD
1 stop16h 40mKLM
Sat 3/117:20BHD - BOS
1 stop25h 10mKLM
Deal found 14/12£2,520
Mon 22/1212:29BOS - BFS
2 stops38h 26mMultiple Airlines
Sun 4/114:45BFS - BOS
1 stop30h 18mMultiple Airlines
Deal found 12/12£3,180

Find flight deals from Boston to Northern Ireland

Keep the following information in mind while searching for Boston to Northern Ireland flight deals. Data was last updated 15 December 2025.

Round-trip from

£400

One-way from

£181

Popular in

November

Cheapest in

September

Average price

£913
British Airways
  • British Airways
  • 11/1-27/1
  • 2 total stops
  • 21h 00m total
  • Boston to Northern Ireland
Search Deals
28/1
  • 28/1
  • 2 total stops
  • 20h 00m total
  • Boston to Northern Ireland
Search Deals
Highest demand for flights based on searches. 25% potential increase in price (£162 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease (£34 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Boston to Northern Ireland 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 15 December 2025.
Use the filters below to find and compare flights from Boston to Northern Ireland that are best for you.

Fly from

Boston

Fly to

Northern Ireland

Route

Depart

Return

Price

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Sun 11/1

18:55-10:20

1 stop10h 25m

Belfast City

Tue 27/1

08:45-14:20

1 stop10h 35m

£400

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Mon 23/2

15:47-09:05

2 stops12h 18m

Belfast City

Mon 2/3

19:25-14:20

1 stop23h 55m

£407

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sun 11/1

20:00-18:15

1 stop17h 15m

Belfast Intl

Tue 27/1

06:00-16:00

1 stop15h 00m

£437

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Thu 29/1

21:35-16:40

1 stop14h 05m

Belfast City

Mon 2/2

17:45-14:20

1 stop25h 35m

£449

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Thu 23/4

19:35-19:20

1 stop18h 45m

Belfast City

Wed 29/4

06:50-17:00

1 stop15h 10m

£453

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Wed 28/1

19:50-20:50

2 stops20h 00m

Belfast Intl

Wed 4/2

07:20-17:50

2 stops15h 30m

£471

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Sun 19/4

16:35-16:55

1 stop19h 20m

Belfast City

Sun 26/4

17:30-18:30

1 stop30h 00m

£475

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Mon 20/4

16:35-16:55

1 stop19h 20m

Belfast City

Sun 26/4

17:30-17:45

2 stops53h 15m

£486

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Sun 19/4

16:35-09:20

1 stop11h 45m

Belfast City

Sun 26/4

17:30-17:45

2 stops53h 15m

£486

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Tue 2/6

22:50-15:55

1 stop12h 05m

Belfast Intl

Tue 9/6

07:00-21:05

2 stops19h 05m

£632

Flights are sorted by cheapest return flights first.

Deals found on 14/12

Showing 1-10 of 14 results
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Best time to book a flight from Boston to Northern Ireland

Have a flexible travel schedule? Discover the best time to fly to Northern Ireland from Boston 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 Boston to Northern Ireland

What is the cheapest month to book a flight from Boston to Northern Ireland?

Currently, September is the cheapest month in which you can book a flight from Boston to Northern Ireland (average of £399). Flying from Boston to Northern Ireland in December is currently the most expensive (average of £759). 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 Boston to Northern Ireland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Boston to Northern Ireland?

    For a flight from Boston to Northern Ireland, you will be flying from Logan Intl. Boston Logan Intl (BOS) is just 2.6 mi from the center of the city.

  • How long is the flight from Boston to Northern Ireland?

    Airlines like British Airways fly from Boston to Northern Ireland in about 10h 25m. The time it takes to get you to your destination can typically vary by up to . The distance from Boston to Northern Ireland is about 2981 mi.

  • What are the most popular routes from Boston to Northern Ireland?

    When deciding which route to take from Boston to Northern Ireland consider Boston Logan Intl - Belfast Intl, Boston Logan Intl - Belfast City or Boston Logan Intl - Campbeltown Machrihanish as they are the most popular.

  • Can I find deals for flights from Boston to Northern Ireland that include hotel bookings?

    Yes. In addition to deals on Boston to Northern Ireland flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Boston to Northern Ireland?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to Northern Ireland.

  • Can I find deals for business class flights from Boston to Northern Ireland?

    Yes. Cheapflights offers flight deals from Boston to Northern Ireland 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 Boston to Northern Ireland?

    Currently, September is the cheapest month in which you can book a flight from Boston to Northern Ireland (average of £399). Flying from Boston to Northern Ireland in December is currently the most expensive (average of £759). 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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Alternative routes for Boston to Northern Ireland

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How does Cheapflights help users find flights from Boston to Northern Ireland?

When you search for this flight from Boston to Northern Ireland, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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