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Northern Ireland

$273+ 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 1/11. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BFS
Jan 3 — Jan 101
Sat 1/3
Sat 1/10
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 December 4, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 12/4. 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 12/86:55 pmBOS - BHD
2 stops12h 20mBritish Airways
Wed 12/102:00 pmBHD - BOS
2 stops12h 55mBritish Airways
Deal found 12/4$1,093
This Delta deal was found by Cheapflights users on 12/3. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/235:17 pmBOS - BHD
2 stops18h 33mDelta
Sat 1/36:30 amBHD - BOS
2 stops18h 41mDelta
Deal found 12/3$1,922
This KLM deal was found by Cheapflights users on 12/4. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/237:10 pmBOS - BHD
1 stop16h 40mKLM
Sat 1/35:20 pmBHD - BOS
1 stop30h 35mKLM
Deal found 12/4$3,347

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 December 4, 2025.

Round-trip from

$516
(American Airlines)

One-way from

$273
(Mytrip)

Popular in

November

Cheapest in

September

Average price

$1,027
From Boston Logan Intl to Northern Ireland
Search Deals
One-way flight from Boston Logan Intl to Northern Ireland
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Highest demand for flights based on searches. 23% potential increase in price ($249 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($62 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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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 December 4, 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 1/11

7:15 pm-1:55 pm

1 stop13h 40m

Belfast City

Tue 1/27

8:45 am-4:15 pm

1 stop12h 30m

$516

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Sun 1/25

8:50 pm-4:50 pm

1 stop15h 00m

Belfast City

Tue 2/10

5:20 pm-6:55 pm

1 stop30h 35m

$516

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Sun 1/25

7:35 pm-1:55 pm

2 stops13h 20m

Belfast City

Tue 2/10

10:00 am-7:33 pm

2 stops14h 33m

$543

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Thu 1/29

7:30 am-10:20 am

1 stop21h 50m

Belfast City

Mon 2/2

11:30 am-2:20 pm

1 stop31h 50m

$568

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Wed 2/11

6:55 pm-9:10 am

1 stop9h 15m

Belfast City

Sun 2/15

9:10 am-9:55 pm

1 stop17h 45m

$568

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sun 1/11

8:00 pm-9:55 pm

1 stop20h 55m

Belfast Intl

Tue 1/27

6:30 am-8:55 pm

2 stops19h 25m

$574

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Thu 1/1

7:30 am-7:30 am

1 stop19h 00m

Belfast City

Thu 1/8

10:40 am-7:45 pm

1 stop14h 05m

$574

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Sun 1/25

7:30 am-8:25 am

1 stop19h 55m

Belfast City

Sat 1/31

6:00 pm-2:20 pm

1 stop25h 20m

$596

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sat 1/17

5:10 pm-9:40 pm

2 stops23h 30m

Belfast Intl

Sat 1/24

7:30 pm-6:59 pm

2 stops28h 29m

$628

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sun 1/25

8:00 pm-9:05 am

1 stop32h 05m

Belfast Intl

Tue 2/10

8:55 pm-4:50 pm

2 stops24h 55m

$722

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/4

Showing 1-10 of 15 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 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, September is the cheapest month in which you can book a flight from Boston to Northern Ireland (average of $534). Flying from Boston to Northern Ireland in December is currently the most expensive (average of $995). 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 December 4, 2025.
Peruse reviews from past customers who have flown with American Airlines and 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.
American Airlines
7.2
Good
11,043 reviews

Crew

8.0

Food

6.5

Boarding

7.5

Overall

7.2

Entertainment

6.9

Comfort

7.2

Reviews

1 / 20
4.0
Okay

Cameron,Nov 2025

PDX - LHR

The plane was very old...had no WiFi available. The crew were not friendly nor helpful.
American Airlines
7.2
Good
11,043 reviews
American Airlines
7.2
Good
11,043 reviews

Crew

8.0

Food

6.5

Boarding

7.5

Overall

7.2

Entertainment

6.9

Comfort

7.2

Reviews

1 / 20
4.0
Okay

Cameron,Nov 2025

PDX - LHR

The plane was very old...had no WiFi available. The crew were not friendly nor helpful.
British Airways
6.7
Okay
7,559 reviews
American Airlines
7.2
Good
11,043 reviews

Crew

8.0

Food

6.5

Boarding

7.5

Overall

7.2

Entertainment

6.9

Comfort

7.2

Reviews

1 / 20
4.0
Okay

Cameron,Nov 2025

PDX - LHR

The plane was very old...had no WiFi available. The crew were not friendly nor helpful.

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 13h 20m. There are 2981 mi between Boston and Northern Ireland. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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, September is the cheapest month in which you can book a flight from Boston to Northern Ireland (average of $534). Flying from Boston to Northern Ireland in December is currently the most expensive (average of $995). 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.

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Alternative routes for Boston to Northern Ireland

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Top 2 airlines flying from Boston to Northern Ireland

Discover the top 2 airlines 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 December 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$542Average$708FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$565Average$800FlexibilityNo cancel feeOn-time71%

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