Cheap flights from Boston to Northern Ireland from $457

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 6/29. 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
1 adult, Economy, 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
8:50 pm - 7:30 pm
BOS
-
BFS
17h 40m
2 stops
Multiple Airlines Logo
10:15 am - 9:05 pm
BFS
-
BOS
15h 50m
1 stop
$653Multiple Airlines
Sat, Oct 10 - Thu, Oct 22
Multiple Airlines Logo
8:50 pm - 6:45 pm
BOS
-
BFS
16h 55m
2 stops
Multiple Airlines Logo
10:15 am - 9:05 pm
BFS
-
BOS
15h 50m
1 stop
$656Multiple Airlines
Sun, Oct 4 - Thu, Oct 22
Multiple Airlines Logo
11:00 pm - 7:40 pm
BOS
-
BFS
15h 40m
2 stops
Multiple Airlines Logo
10:15 am - 9:05 pm
BFS
-
BOS
15h 50m
1 stop
$670Multiple Airlines
Wed, Oct 7 - Thu, Oct 22
Multiple Airlines Logo
8:50 pm - 9:30 pm
BOS
-
BFS
19h 40m
2 stops
Multiple Airlines Logo
10:15 am - 9:05 pm
BFS
-
BOS
15h 50m
1 stop
$708Multiple Airlines
Sat, Sep 5 - Thu, Sep 17
Multiple Airlines Logo
8:50 pm - 9:30 pm
BOS
-
BFS
19h 40m
2 stops
Multiple Airlines Logo
8:40 pm - 2:55 pm
BFS
-
BOS
23h 15m
2 stops
$718Multiple Airlines
Sat, Sep 5 - Thu, Sep 17
Multiple Airlines Logo
8:50 pm - 8:35 pm
BOS
-
BHD
18h 45m
2 stops
Multiple Airlines Logo
8:40 pm - 2:55 pm
BHD
-
BOS
23h 15m
2 stops
$751Multiple Airlines
Sat, Sep 5 - Thu, Sep 17
Multiple Airlines Logo
8:50 pm - 10:40 pm
BOS
-
BFS
20h 50m
2 stops
Multiple Airlines Logo
9:40 pm - 2:45 pm
BFS
-
BOS
46h 05m
3 stops
$761Multiple Airlines
Sat, Sep 12 - Sat, Sep 19
Multiple Airlines Logo
7:50 pm - 8:45 pm
BOS
-
BFS
19h 55m
3 stops
Multiple Airlines Logo
9:20 pm - 2:40 pm
BFS
-
BOS
46h 20m
3 stops
$775Multiple Airlines
Wed, Nov 4 - Wed, Nov 18
British Airways Logo
9:50 pm - 1:35 pm
BOS
-
BHD
10h 45m
1 stop
British Airways Logo
10:05 am - 8:05 pm
BHD
-
BOS
15h 00m
1 stop
$867British Airways
Wed, Oct 7 - Wed, Oct 21
British Airways Logo
9:30 pm - 2:50 pm
BOS
-
BHD
12h 20m
1 stop
British Airways Logo
6:35 am - 2:20 pm
BHD
-
BOS
12h 45m
1 stop
$869British Airways
Tue, Nov 3 - Tue, Nov 10

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British Airways flights from Boston to Northern Ireland

Our best British Airways deals on Boston to Northern Ireland flight tickets
British Airways
Oct 7
BOS9:50 pmBoston Logan Intl
10h 45m
1 stop
BHD1:35 pmBelfast City
Oct 21
BHD10:05 amBelfast City
15h 00m
1 stop
BOS8:05 pmBoston Logan Intl
$867
British Airways
Nov 3
BOS9:30 pmBoston Logan Intl
12h 20m
1 stop
BHD2:50 pmBelfast City
Nov 10
BHD6:35 amBelfast City
12h 45m
1 stop
BOS2:20 pmBoston Logan Intl
$869
British Airways
Oct 7
BOS3:31 pmBoston Logan Intl
15h 29m
2 stops
BHD12:00 pmBelfast City
Oct 21
BHD11:35 amBelfast City
10h 25m
1 stop
BOS5:00 pmBoston Logan Intl
$872

KLM flights from Boston to Northern Ireland

Our best KLM deals on Boston to Northern Ireland flight tickets
KLM
Sep 25
BOS8:25 pmBoston Logan Intl
31h 50m
1 stop
BHD9:15 amBelfast City
Sep 28
BHD9:50 amBelfast City
32h 29m
1 stop
BOS1:19 pmBoston Logan Intl
$970
KLM
Nov 4
BOS12:55 pmBoston Logan Intl
15h 15m
2 stops
BHD9:10 amBelfast City
Nov 9
BHD9:40 amBelfast City
26h 44m
2 stops
BOS7:24 amBoston Logan Intl
$985
KLM
Jul 2
BOS4:40 pmBoston Logan Intl
11h 40m
1 stop
BHD9:20 amBelfast City
Jul 5
BHD5:30 pmBelfast City
30h 00m
1 stop
BOS6:30 pmBoston Logan Intl
$1,414

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 June 21, 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

Sat 10/10

8:50 pm-7:30 pm

2 stops17h 40m

Belfast Intl

Thu 10/22

10:15 am-9:05 pm

1 stop15h 50m

$653

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sun 10/4

8:50 pm-6:45 pm

2 stops16h 55m

Belfast Intl

Thu 10/22

10:15 am-9:05 pm

1 stop15h 50m

$656

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Wed 10/7

11:00 pm-7:40 pm

2 stops15h 40m

Belfast Intl

Thu 10/22

10:15 am-9:05 pm

1 stop15h 50m

$670

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sat 9/5

8:50 pm-9:30 pm

2 stops19h 40m

Belfast Intl

Thu 9/17

10:15 am-9:05 pm

1 stop15h 50m

$708

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sat 9/5

8:50 pm-9:30 pm

2 stops19h 40m

Belfast Intl

Thu 9/17

8:40 pm-2:55 pm

2 stops23h 15m

$718

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Sat 9/5

8:50 pm-8:35 pm

2 stops18h 45m

Belfast City

Thu 9/17

8:40 pm-2:55 pm

2 stops23h 15m

$751

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Sat 9/12

8:50 pm-10:40 pm

2 stops20h 50m

Belfast Intl

Sat 9/19

9:40 pm-2:45 pm

3 stops46h 05m

$761

BostonBelfast

BOS - BFS

BOSBFS

Boston Logan Intl

Wed 11/4

7:50 pm-8:45 pm

3 stops19h 55m

Belfast Intl

Wed 11/18

9:20 pm-2:40 pm

3 stops46h 20m

$775

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Wed 10/7

9:50 pm-1:35 pm

1 stop10h 45m

Belfast City

Wed 10/21

10:05 am-8:05 pm

1 stop15h 00m

$867
Quickest round-trip

BostonBelfast

BOS - BHD

BOSBHD

Boston Logan Intl

Tue 11/3

9:30 pm-2:50 pm

1 stop12h 20m

Belfast City

Tue 11/10

6:35 am-2:20 pm

1 stop12h 45m

$869

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 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 March. Flight prices, which tend to average around $513, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of March, then book flights to Northern Ireland from Boston during September instead. Flights to Northern Ireland in September, while not as cheap as those in March, still average around $525.

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

11h 45m

Direct flights

None
The fastest flight from Boston to Northern Ireland takes 11h 45m
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
8,062 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
Tue 7/21
Tue 7/28

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