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Northern Ireland

$250+ Cheap flights from Boston (BOS) to Northern Ireland

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 4/23. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BFS
Apr 10 — Apr 171
Fri 4/10
Fri 4/17
1 adult, Economy
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Cheap flight deals from Boston to Northern Ireland

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 March 11, 2026.

This Trip.com deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/2511:00 pm
BOS
-
BFS
2 stops18h 40m
Multiple Airlines
Thu 4/306:10 am
BFS
-
BOS
2 stops20h 35m
Multiple Airlines
Deal found 3/10$621
This SmartFares deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/279:50 pm
BOS
-
BHD
1 stop12h 40m
British Airways
Tue 5/121:45 pm
BHD
-
BOS
1 stop11h 20m
British Airways
Deal found 3/6$640
This Mytrip deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/48:50 pm
BOS
-
BFS
2 stops18h 50m
Multiple Airlines
Wed 5/137:35 am
BFS
-
BOS
2 stops16h 15m
Multiple Airlines
Deal found 3/7$646
This Cheapflightsfares deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/49:50 pm
BOS
-
BHD
1 stop12h 40m
British Airways
Wed 5/1311:35 am
BHD
-
BOS
1 stop10h 25m
British Airways
Deal found 3/9$651
This oojo deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/197:35 pm
BOS
-
BHD
1 stop13h 00m
British Airways
Wed 8/2611:35 am
BHD
-
BOS
1 stop10h 25m
British Airways
Deal found 3/7$652
This British Airways deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/157:35 pm
BOS
-
BHD
1 stop10h 10m
British Airways
Mon 9/217:35 pm
BHD
-
BOS
1 stop26h 20m
British Airways
Deal found 3/7$657
This American Airlines deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/205:04 pm
BOS
-
BHD
2 stops12h 41m
American Airlines
Tue 10/278:45 am
BHD
-
BOS
1 stop12h 35m
American Airlines
Deal found 3/7$660
This American Airlines deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/278:10 pm
BOS
-
BHD
1 stop11h 45m
American Airlines
Tue 5/121:45 pm
BHD
-
BOS
2 stops15h 07m
American Airlines
Deal found 3/7$665
This Mytrip deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2311:00 pm
BOS
-
BFS
2 stops16h 35m
Multiple Airlines
Thu 4/306:10 am
BFS
-
BOS
2 stops20h 35m
Multiple Airlines
Deal found 3/9$673
This FlightHub deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/51:01 pm
BOS
-
BHD
2 stops18h 54m
British Airways
Tue 10/1312:40 pm
BHD
-
BOS
1 stop14h 55m
British Airways
Deal found 3/7$676
This Air France deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/274:35 pm
BOS
-
BHD
1 stop19h 20m
Multiple Airlines
Tue 5/129:50 am
BHD
-
BOS
2 stops18h 47m
Multiple Airlines
Deal found 3/6$679
This Kiwi.com deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2711:10 pm
BOS
-
BFS
1 stop12h 05m
Multiple Airlines
Tue 5/128:45 am
BFS
-
BOS
2 stops17h 20m
Multiple Airlines
Deal found 3/6$689

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 March 11, 2026.

Round-trip from

$617
(Kiwi.com)

One-way from

$250
(Kiwi.com)

Popular in

November

Cheapest in

February

Average price

$598
From Boston Logan Intl to Northern Ireland
Search Deals
One-way flight from Boston Logan Intl to Northern Ireland
Search Deals
Highest demand for flights based on searches. 29% potential increase in price ($329 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($64 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated March 11, 2026.
Use the filters below to find and compare flights from Boston to Northern Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Tue 9/1

1:10 pm-10:45 am

2 stops16h 35m

Belfast City

Tue 9/8

1:45 pm-10:35 pm

1 stop13h 50m

$662

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Mon 5/4

3:05 pm-12:55 pm

2 stops16h 50m

Belfast City

Wed 5/13

11:35 am-5:00 pm

1 stop10h 25m

$662

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Thu 4/23

11:00 pm-8:35 pm

2 stops16h 35m

Belfast Intl

Thu 4/30

6:10 am-9:45 pm

2 stops20h 35m

$673

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Mon 4/27

11:10 pm-4:15 pm

1 stop12h 05m

Belfast Intl

Tue 5/12

8:45 am-9:05 pm

2 stops17h 20m

$689

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Tue 4/7

8:50 pm-4:20 pm

2 stops14h 30m

Belfast Intl

Tue 4/14

7:15 am-6:50 pm

2 stops16h 35m

$724

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Tue 4/7

11:30 am-9:20 am

2 stops16h 50m

Belfast City

Tue 4/14

9:50 am-11:07 pm

2 stops18h 17m

$739

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Mon 4/13

11:00 pm-7:35 am

2 stops27h 35m

Belfast Intl

Mon 4/20

9:10 am-9:05 pm

1 stop16h 55m

$745

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Mon 5/25

7:25 am-8:50 am

1 stop20h 25m

Belfast City

Thu 6/4

2:20 pm-8:05 pm

1 stop10h 45m

$782

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Sun 5/24

7:25 am-8:40 am

1 stop20h 15m

Belfast City

Tue 6/2

6:20 pm-8:05 pm

1 stop30h 45m

$782

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Sun 5/24

7:25 am-8:40 am

1 stop20h 15m

Belfast City

Thu 6/4

4:35 pm-10:35 pm

1 stop11h 00m

$782

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/6

Showing 1-10 of 32 resultsSorted by cheapest first
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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 round-trip 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, March is the cheapest month in which you can book a flight from Boston to Northern Ireland (average of $525). Flying from Boston to Northern Ireland in December is currently the most expensive (average of $1,015). 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.

Reviews of airlines servicing Northern Ireland

Get insights into the airlines that provide service to Northern Ireland. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Northern Ireland. Reviews last updated March 11, 2026.
Peruse reviews from past customers who have flown with British Airways from Boston to Northern Ireland to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
7,781 reviews

Food

6.4

Boarding

6.9

Comfort

6.8

Entertainment

6.4

Crew

7.6

Overall

6.7

Reviews

1 / 20
2.0
Mediocre

Natasha,Feb 2026

SEA - LHR

I already said the thing about the list luggage, which actually this flight.
British Airways
6.7
Okay
7,781 reviews
British Airways
6.7
Okay
7,781 reviews

Food

6.4

Boarding

6.9

Comfort

6.8

Entertainment

6.4

Crew

7.6

Overall

6.7

Reviews

1 / 20
2.0
Mediocre

Natasha,Feb 2026

SEA - LHR

I already said the thing about the list luggage, which actually this flight.

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?

    Boston Logan Intl (BOS), located 2.6 mi from the city center, is the airport you fly out of when you book flights from Boston to Northern Ireland.

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

    Departing from Boston to Northern Ireland will take you 16h 35m. There are 2981 mi between Boston and Northern Ireland.

  • 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 vacation 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, March is the cheapest month in which you can book a flight from Boston to Northern Ireland (average of $525). Flying from Boston to Northern Ireland in December is currently the most expensive (average of $1,015). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top airline flying from Boston to Northern Ireland

Discover the top airline that operate flights from Boston to Northern Ireland. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$538Average$760FlexibilityNo cancel feeOn-time70%

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