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Cheap flights from Boston to Northern Ireland from £174

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 23/3. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BFS
5 Mar — 12 Mar1
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 3 February 2026.

Tue 28/420:10
BOS
-
BHD
1 stop14h 10m
American Airlines
Tue 5/506:30
BHD
-
BOS
1 stop11h 55m
American Airlines
Deal found 1/2£419
Tue 28/421:50
BOS
-
BHD
1 stop12h 30m
British Airways
Tue 5/513:45
BHD
-
BOS
2 stops15h 07m
British Airways
Deal found 1/2£420
Mon 6/421:50
BOS
-
BHD
1 stop12h 40m
British Airways
Mon 13/419:35
BHD
-
BOS
1 stop26h 20m
British Airways
Deal found 2/2£431
Thu 19/312:35
BOS
-
BFS
2 stops27h 50m
Multiple Airlines
Thu 26/307:05
BFS
-
BOS
2 stops15h 45m
Multiple Airlines
Deal found 2/2£452
Mon 6/421:15
BOS
-
BFS
2 stops20h 50m
Multiple Airlines
Mon 13/406:30
BFS
-
BOS
2 stops17h 20m
Multiple Airlines
Deal found 2/2£453
Fri 14/807:25
BOS
-
BHD
1 stop20h 25m
British Airways
Tue 18/819:30
BHD
-
BOS
1 stop26h 30m
British Airways
Deal found 1/2£455
Thu 5/219:50
BOS
-
BHD
2 stops19h 40m
Multiple Airlines
Sat 7/214:15
BHD
-
BOS
2 stops32h 35m
Multiple Airlines
Deal found 1/2£463
Thu 5/219:50
BOS
-
BFS
2 stops21h 30m
Multiple Airlines
Sat 7/210:40
BFS
-
BOS
2 stops36h 10m
Multiple Airlines
Deal found 1/2£467
Thu 30/419:35
BOS
-
BHD
1 stop9h 35m
British Airways
Sun 10/511:00
BHD
-
BOS
1 stop10h 55m
British Airways
Deal found 2/2£488
Sun 1/318:55
BOS
-
BHD
1 stop10h 25m
British Airways
Thu 5/309:05
BHD
-
BOS
1 stop15h 40m
British Airways
Deal found 31/1£502
Sun 3/521:55
BOS
-
BHD
1 stop11h 40m
British Airways
Thu 7/519:30
BHD
-
BOS
1 stop26h 30m
British Airways
Deal found 1/2£509
Mon 6/405:35
BOS
-
BHD
2 stops22h 45m
Multiple Airlines
Mon 13/417:30
BHD
-
BOS
2 stops31h 10m
Multiple Airlines
Deal found 2/2£517

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 3 February 2026.

Round-trip from

£419

One-way from

£174

Popular in

November

Cheapest in

September

Average price

£567
American Airlines
  • American Airlines
  • 28/4-5/5
  • 2 total stops
  • 26h 05m total
  • Boston to Northern Ireland
Search Deals
23/3
  • 23/3
  • 2 total stops
  • 33h 30m total
  • Boston to Northern Ireland
Search Deals
Highest demand for flights based on searches. 26% potential increase in price (£158 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease (£33 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
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 3 February 2026.
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

Tue 28/4

20:10-15:20

1 stop14h 10m

Belfast City

Tue 5/5

06:30-13:25

1 stop11h 55m

£419

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Tue 28/4

21:50-15:20

1 stop12h 30m

Belfast City

Tue 5/5

13:45-23:52

2 stops15h 07m

£420

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Thu 19/3

12:35-20:25

2 stops27h 50m

Belfast Intl

Thu 26/3

07:05-18:50

2 stops15h 45m

£452

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Mon 6/4

21:15-23:05

2 stops20h 50m

Belfast Intl

Mon 13/4

06:30-18:50

2 stops17h 20m

£453

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Sun 1/3

18:55-10:20

1 stop10h 25m

Belfast City

Thu 5/3

09:05-19:45

1 stop15h 40m

£502

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Sun 3/5

21:55-14:35

1 stop11h 40m

Belfast City

Thu 7/5

19:30-17:00

1 stop26h 30m

£509

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Wed 18/3

20:50-16:10

2 stops15h 20m

Belfast Intl

Wed 25/3

06:55-21:00

2 stops18h 05m

£533

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Fri 8/5

23:00-21:50

2 stops17h 50m

Belfast Intl

Mon 18/5

09:10-21:05

1 stop16h 55m

£539

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Fri 20/3

08:30-10:30

1 stop22h 00m

Belfast City

Sun 22/3

20:25-15:20

1 stop22h 55m

£545

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Sun 19/4

21:55-13:25

1 stop10h 30m

Belfast City

Sat 25/4

19:05-16:18

2 stops26h 13m

£566

Flights are sorted by cheapest return flights first.

Deals found on 1/2

Showing 1-10 of 22 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 £390). Flying from Boston to Northern Ireland 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.

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 American Airlines and British Airways fly from Boston to Northern Ireland in about 12h 30m. The time it takes to get you to your destination can typically vary by up to 1h 40m. The distance from Boston to Northern Ireland is about 2981 mi. This flight may include one or multiple stops.

  • 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 £390). Flying from Boston to Northern Ireland 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 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.

Why should you use Cheapflights to find cheap flight tickets from Boston to Northern Ireland?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Boston to Northern Ireland.

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Yes! Cheapflights helps users easily find flights from Boston to Northern Ireland with no change fees.

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