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Cheap flights from Boston to Northern Ireland from £242

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 14/5. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — BFS
5 May — 12 May1
1 adult

Cheap 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 30 April 2025.

Round-trip from

£426

One-way from

£242

Popular in

July

Cheapest in

February

Average price

£493
Iberia
  • Iberia
  • 15/9-24/9
  • 2 total stops
  • 32h 10m total
  • Boston to Northern Ireland
Search Deals
14/5
  • 14/5
  • 2 total stops
  • 15h 15m total
  • Boston to Northern Ireland
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£70 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£14 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

Find 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 30 April 2025.

Mon 5/519:15BOS - BFS
2 stops13h 35mMultiple Airlines
Tue 13/506:45BFS - BOS
2 stops16h 05mMultiple Airlines
Deal found 28/4£424
Mon 15/919:40BOS - BHD
1 stop16h 50mIberia
Wed 24/906:50BHD - BOS
1 stop15h 20mIberia
Deal found 29/4£426
Mon 8/922:00BOS - BHD
1 stop12h 40mMultiple Airlines
Tue 16/916:25BHD - BOS
1 stop23h 50mMultiple Airlines
Deal found 29/4£430
Wed 27/821:55BOS - BHD
1 stop12h 40mAmerican Airlines
Wed 3/916:05BHD - BOS
1 stop11h 40mAmerican Airlines
Deal found 30/4£438
Wed 27/817:59BOS - BHD
2 stops14h 31mBritish Airways
Wed 3/906:50BHD - BOS
2 stops18h 00mBritish Airways
Deal found 30/4£459
Tue 29/418:50BOS - BHD
2 stops17h 05mDelta
Wed 7/506:30BHD - BOS
2 stops17h 38mDelta
Deal found 29/4£535
Thu 3/721:25BOS - BHD
2 stops15h 15mAer Lingus
Sun 6/710:20BHD - BOS
2 stops19h 07mAer Lingus
Deal found 30/4£873

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 30 April 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

Mon 15/9

19:40-17:30

1 stop16h 50m

Belfast City

Wed 24/9

06:50-17:10

1 stop15h 20m

£426

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Mon 8/9

22:00-15:40

1 stop12h 40m

Belfast City

Tue 16/9

16:25-11:15

1 stop23h 50m

£430

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Wed 27/8

21:55-15:35

1 stop12h 40m

Belfast City

Wed 3/9

16:05-22:45

1 stop11h 40m

£438

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Wed 27/8

17:59-13:30

2 stops14h 31m

Belfast City

Wed 3/9

06:50-19:50

2 stops18h 00m

£459

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Thu 12/6

08:45-16:15

3 stops26h 30m

Belfast Intl

Thu 19/6

06:10-07:12

3 stops30h 02m

£590

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Sun 1/6

13:05-16:55

2 stops22h 50m

Belfast City

Sun 8/6

17:25-07:59

2 stops19h 34m

£669

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Thu 3/7

21:25-17:40

2 stops15h 15m

Belfast City

Sun 6/7

10:20-00:27

2 stops19h 07m

£873

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Wed 14/5

19:15-15:30

2 stops15h 15m

£242

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Wed 14/5

19:15-14:40

2 stops14h 25m

£249

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Wed 14/5

19:40-11:55

1 stop11h 15m

£324

Flights are sorted by cheapest return flights first.

Deals found on 29/4

Showing 1-10 of 12 results
1
2

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, January is the cheapest month in which you can book a flight from Boston to Northern Ireland (average of £67). Flying from Boston to Northern Ireland in July is currently the most expensive (average of £90). 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.

Rainfall in Northern Ireland by month

Plan your trip to Northern Ireland by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Northern Ireland ranges from 50.0 - 90.0 inches per month. October is typically the wettest month, when rainfall can reach 90.0 mm. April is typically the driest time to visit Northern Ireland when rainfall is around 50.0 mm.

Temperature in Northern Ireland by month

Plan your trip to Northern Ireland by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Northern Ireland, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 16.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).

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 30 April 2025.
Read reviews from past customers who have flown Delta, American Airlines and Aer Lingus from Boston to Northern Ireland. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
7,936 reviews
Check prices

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very Good
7,936 reviews
Delta
8.0
Very Good
7,936 reviews
Check prices

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very Good
7,936 reviews
Check prices

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Aer Lingus
7.0
Good
1,076 reviews
Delta
8.0
Very Good
7,936 reviews
Check prices

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Iberia
7.0
Good
2,700 reviews
Delta
8.0
Very Good
7,936 reviews
Check prices

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
British Airways
6.6
Okay
6,837 reviews
Delta
8.0
Very Good
7,936 reviews
Check prices

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

  • What are the cheapest airlines to fly from Boston to Northern Ireland one-way?

    The cheapet airlines for a one-way flight from Boston to Northern Ireland are Iberia (£324), American Airlines (£436), and British Airways (£443).

  • 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, January is the cheapest month in which you can book a flight from Boston to Northern Ireland (average of £67). Flying from Boston to Northern Ireland in July is currently the most expensive (average of £90). 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

See prices for flight routes from nearby airports that may be better suited for you.
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