Cheap flights from Boston to Northern Ireland from $334

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Northern Ireland departing on 8/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Boston to Northern Ireland

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
11:35 pm - 11:30 pm
BOS
-
BFS
18h 55m
2 stops
Multiple Airlines Logo
5:45 pm - 9:45 pm
BFS
-
BOS
33h 00m
1 stop
$822Multiple Airlines
Thu, Jul 16 - Wed, Jul 29
Multiple Airlines Logo
11:00 pm - 8:40 pm
BOS
-
BFS
16h 40m
2 stops
Multiple Airlines Logo
9:35 am - 9:15 pm
BFS
-
BOS
16h 40m
1 stop
$835Multiple Airlines
Mon, Aug 31 - Wed, Sep 9
Multiple Airlines Logo
11:00 pm - 9:00 pm
BOS
-
BFS
17h 00m
2 stops
Multiple Airlines Logo
9:35 am - 9:15 pm
BFS
-
BOS
16h 40m
1 stop
$852Multiple Airlines
Sun, Aug 30 - Wed, Sep 9
Multiple Airlines Logo
8:20 pm - 4:50 pm
BOS
-
BHD
16h 30m
1 stop
Multiple Airlines Logo
7:20 am - 5:50 pm
BHD
-
BOS
15h 30m
2 stops
$865Multiple Airlines
Wed, Oct 28 - Mon, Nov 2
Multiple Airlines Logo
8:50 pm - 7:50 pm
BOS
-
BFS
18h 00m
3 stops
Multiple Airlines Logo
2:50 pm - 8:20 pm
BFS
-
BOS
34h 30m
3 stops
$868Multiple Airlines
Tue, Aug 25 - Thu, Sep 10
Multiple Airlines Logo
11:00 pm - 8:40 pm
BOS
-
BFS
16h 40m
2 stops
Multiple Airlines Logo
10:15 am - 9:15 pm
BFS
-
BOS
16h 00m
1 stop
$870Multiple Airlines
Mon, Aug 31 - Thu, Sep 10
Multiple Airlines Logo
11:00 pm - 9:00 pm
BOS
-
BFS
17h 00m
2 stops
Multiple Airlines Logo
10:15 am - 9:15 pm
BFS
-
BOS
16h 00m
1 stop
$887Multiple Airlines
Sun, Aug 30 - Thu, Sep 10
British Airways Logo
9:50 pm - 3:20 pm
BOS
-
BHD
12h 30m
1 stop
British Airways Logo
9:35 am - 8:05 pm
BHD
-
BOS
15h 30m
1 stop
$892British Airways
Tue, Aug 25 - Thu, Sep 10
Multiple Airlines Logo
11:00 pm - 10:15 pm
BOS
-
BFS
18h 15m
2 stops
Multiple Airlines Logo
2:50 pm - 8:20 pm
BFS
-
BOS
34h 30m
3 stops
$894Multiple Airlines
Tue, Aug 25 - Thu, Sep 10
British Airways Logo
9:50 pm - 12:55 pm
BOS
-
BHD
10h 05m
1 stop
British Airways Logo
11:35 am - 5:00 pm
BHD
-
BOS
10h 25m
1 stop
$896British Airways
Mon, Sep 28 - Mon, Oct 5

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KLM flights from Boston to Northern Ireland

Our best KLM deals on Boston to Northern Ireland flight tickets
KLM
May 9
BOS6:50 pmBoston Logan Intl
17h 05m
1 stop
BHD4:55 pmBelfast City
May 16
BHD5:30 pmBelfast City
27h 55m
1 stop
BOS4:25 pmBoston Logan Intl
$936
KLM
Oct 29
BOS8:45 pmBoston Logan Intl
16h 05m
2 stops
BHD4:50 pmBelfast City
Nov 2
BHD5:20 pmBelfast City
25h 05m
1 stop
BOS1:25 pmBoston Logan Intl
$1,040
KLM
Sep 2
BOS1:10 pmBoston Logan Intl
15h 10m
2 stops
BHD9:20 amBelfast City
Sep 8
BHD5:30 pmBelfast City
24h 49m
1 stop
BOS1:19 pmBoston Logan Intl
$1,109

Delta flights from Boston to Northern Ireland

Our best Delta deals on Boston to Northern Ireland flight tickets
Delta
Aug 30
BOS9:55 amBoston Logan Intl
18h 25m
2 stops
BHD9:20 amBelfast City
Sep 11
BHD9:50 amBelfast City
11h 45m
1 stop
BOS4:35 pmBoston Logan Intl
$930
Delta
Jul 18
BOS8:25 pmBoston Logan Intl
15h 30m
1 stop
BHD4:55 pmBelfast City
Jul 29
BHD9:50 amBelfast City
11h 50m
1 stop
BOS4:40 pmBoston Logan Intl
$1,066
Delta
Jul 18
BOS8:25 pmBoston Logan Intl
31h 55m
1 stop
BHD9:20 amBelfast City
Jul 30
BHD9:50 amBelfast City
17h 53m
2 stops
BOS10:43 pmBoston Logan Intl
$1,076

momondo 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, momondo users made 832,500 searches. Data last updated May 4, 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 - BFS

BOSBFS

Boston Logan Intl

Thu 7/16

11:35 pm-11:30 pm

2 stops18h 55m

Belfast Intl

Wed 7/29

5:45 pm-9:45 pm

1 stop33h 00m

$822

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Mon 8/31

11:00 pm-8:40 pm

2 stops16h 40m

Belfast Intl

Wed 9/9

9:35 am-9:15 pm

1 stop16h 40m

$835

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sun 8/30

11:00 pm-9:00 pm

2 stops17h 00m

Belfast Intl

Wed 9/9

9:35 am-9:15 pm

1 stop16h 40m

$852

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Wed 10/28

8:20 pm-4:50 pm

1 stop16h 30m

Belfast City

Mon 11/2

7:20 am-5:50 pm

2 stops15h 30m

$865

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Tue 8/25

8:50 pm-7:50 pm

3 stops18h 00m

Belfast Intl

Thu 9/10

2:50 pm-8:20 pm

3 stops34h 30m

$868

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Mon 8/31

11:00 pm-8:40 pm

2 stops16h 40m

Belfast Intl

Thu 9/10

10:15 am-9:15 pm

1 stop16h 00m

$870

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sun 8/30

11:00 pm-9:00 pm

2 stops17h 00m

Belfast Intl

Thu 9/10

10:15 am-9:15 pm

1 stop16h 00m

$887

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Tue 8/25

9:50 pm-3:20 pm

1 stop12h 30m

Belfast City

Thu 9/10

9:35 am-8:05 pm

1 stop15h 30m

$892

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Tue 8/25

11:00 pm-10:15 pm

2 stops18h 15m

Belfast Intl

Thu 9/10

2:50 pm-8:20 pm

3 stops34h 30m

$894
Quickest round-trip

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Mon 9/28

9:50 pm-12:55 pm

1 stop10h 05m

Belfast City

Mon 10/5

11:35 am-5:00 pm

1 stop10h 25m

$896

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Northern Ireland from

How to get the cheapest flight ticket from Boston to Northern Ireland

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Northern Ireland?

The cheapest month to fly to Northern Ireland from Boston is in February. Flight prices, which tend to average around $0, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of February, then book flights to Northern Ireland from Boston during March instead. Flights to Northern Ireland in March, while not as cheap as those in February, still average around $513.

Cheap Boston to Northern Ireland flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to Northern Ireland

Fastest flight time

10h 05m

Direct flights

None
The fastest flight from Boston to Northern Ireland takes 10h 05m
There are no direct flights from Boston to Northern Ireland. There are no popular flight routes from Boston to Northern Ireland.

Frequently asked questions about flying from Boston to Northern Ireland

  • When did momondo last update prices for flights from Boston Logan Intl Airport to Northern Ireland?

    Prices for flights from Boston Logan Intl Airport to Northern Ireland were last updated today.

  • How many operators does momondo search for flights from Boston Logan Intl Airport to Northern Ireland?

  • How old do you have to be to fly from Boston Logan Intl Airport to Northern Ireland?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Boston Logan Intl Airport to Northern Ireland.

  • What documentation or ID do you need to fly to Northern Ireland?

    The required travel and health documents for your Northern Ireland trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Northern Ireland. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Boston to Northern Ireland

Compare and see reviews for airlines that fly from Boston to Northern Ireland with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom $534Free CancellationRating
6.7
7,943 reviews
Search British Airways flights

Why use momondo?

Why should I use momondo to find a flight deal from Boston to Northern Ireland?

It is quick and easy to find Boston to Northern Ireland flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Northern Ireland that suits you.

Can I find flights from Boston to Northern Ireland with flexible booking policies on momondo?

momondo does allow users to show only those flights to Northern Ireland from Boston which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Boston to Northern Ireland?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Boston to Northern Ireland.

I’m not ready to book a flight from Boston to Northern Ireland right now. Can momondo alert me if prices change?

Price alerts on flights to Northern Ireland from Boston are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Northern Ireland trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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1 adult
Wed 6/3
Wed 6/10

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Popular cities in Northern Ireland

Popular flights according to clicks in the last 7 days on momondo