When did momondo last update prices for flights from Ireland to Northern Ireland?

Prices for flights from Ireland to Northern Ireland are refreshed on a daily basis.

How old do you have to be to fly from Ireland 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 Ireland to Northern Ireland.

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

The travel and health documents required for your trip to Northern Ireland can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Northern Ireland. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

€43 Cheap Flights from Ireland to Northern Ireland in 2026/27

Find the cheapest flights from Ireland to Northern Ireland

Return

One-way

Recent return flight deals from Ireland to Northern Ireland

Enter your travel dates to find the best prices.

15:30 - 10:05NOC Knock Intl-BFS Belfast Intl

18h 35m1 stop London Luton

22:05 - 10:15BFS Belfast Intl-NOC Knock Intl

12h 10m1 stop London Stansted

€85Multiple Airlines

Sat, 21 Nov - Wed, 25 Nov

06:10 - 19:45DUB Dublin-BFS Belfast Intl

13h 35m1 stop Manchester

09:25 - 15:40BFS Belfast Intl-DUB Dublin

6h 15m1 stop Manchester

€91Multiple Airlines

Thu, 17 Dec - Thu, 24 Dec

20:55 - 08:25DUB Dublin-BFS Belfast Intl

11h 30m1 stop Edinburgh Turnhouse

09:30 - 19:00BFS Belfast Intl-DUB Dublin

9h 30m1 stop Edinburgh Turnhouse

€92Multiple Airlines

Sat, 19 Dec - Sat, 26 Dec

19:25 - 08:25DUB Dublin-BFS Belfast Intl

13h 00m1 stop Edinburgh Turnhouse

07:50 - 07:05BFS Belfast Intl-DUB Dublin

23h 15m1 stop Manchester

€93Multiple Airlines

Sat, 12 Dec - Sun, 20 Dec

21:55 - 09:05DUB Dublin-BFS Belfast Intl

11h 10m1 stop London Stansted

19:20 - 23:45BFS Belfast Intl-DUB Dublin

4h 25m1 stop London Stansted

€94Multiple Airlines

Fri, 4 Dec - Fri, 11 Dec

20:35 - 07:30DUB Dublin-BFS Belfast Intl

10h 55m1 stop London Stansted

15:25 - 20:00BFS Belfast Intl-DUB Dublin

4h 35m1 stop London Stansted

€95Multiple Airlines

Tue, 17 Nov - Sat, 21 Nov

21:00 - 10:05DUB Dublin-BFS Belfast Intl

13h 05m1 stop London Stansted

19:05 - 07:50BFS Belfast Intl-DUB Dublin

12h 45m1 stop London Stansted

€97Multiple Airlines

Sat, 5 Dec - Sat, 12 Dec

08:30 - 20:25DUB Dublin-BFS Belfast Intl

11h 55m1 stop Bristol

08:45 - 20:20BFS Belfast Intl-DUB Dublin

11h 35m1 stop Bristol

€100Multiple Airlines

Tue, 1 Dec - Tue, 8 Dec

06:55 - 19:50DUB Dublin-BFS Belfast Intl

12h 55m1 stop Manchester

09:25 - 23:25BFS Belfast Intl-DUB Dublin

14h 00m1 stop Manchester

€101Multiple Airlines

Fri, 11 Dec - Thu, 17 Dec

18:00 - 22:45DUB Dublin-BFS Belfast Intl

4h 45m1 stop Glasgow Intl

17:20 - 23:25BFS Belfast Intl-DUB Dublin

6h 05m1 stop Manchester

€102Multiple Airlines

Fri, 11 Dec - Thu, 17 Dec

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Use the filters below to find and compare flights from Ireland to Northern Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

KnockBelfast

NOC Knock Intl - BFS Belfast Intl

NOCBFS

Knock Intl

Sat 21/11

15:30-10:05

1 stop18h 35m

Belfast Intl

Wed 25/11

22:05-10:15

1 stop12h 10m

€85

DublinBelfast

DUB Dublin - BFS Belfast Intl

DUBBFS

Dublin

Thu 17/12

06:10-19:45

1 stop13h 35m

Belfast Intl

Thu 24/12

09:25-15:40

1 stop6h 15m

€91

DublinBelfast

DUB Dublin - BFS Belfast Intl

DUBBFS

Dublin

Sat 19/12

20:55-08:25

1 stop11h 30m

Belfast Intl

Sat 26/12

09:30-19:00

1 stop9h 30m

€92

DublinBelfast

DUB Dublin - BFS Belfast Intl

DUBBFS

Dublin

Sat 12/12

19:25-08:25

1 stop13h 00m

Belfast Intl

Sun 20/12

07:50-07:05

1 stop23h 15m

€93

DublinBelfast

DUB Dublin - BFS Belfast Intl

DUBBFS

Dublin

Fri 4/12

21:55-09:05

1 stop11h 10m

Belfast Intl

Fri 11/12

19:20-23:45

1 stop4h 25m

€94

DublinBelfast

DUB Dublin - BFS Belfast Intl

DUBBFS

Dublin

Tue 17/11

20:35-07:30

1 stop10h 55m

Belfast Intl

Sat 21/11

15:25-20:00

1 stop4h 35m

€95

DublinBelfast

DUB Dublin - BFS Belfast Intl

DUBBFS

Dublin

Sat 5/12

21:00-10:05

1 stop13h 05m

Belfast Intl

Sat 12/12

19:05-07:50

1 stop12h 45m

€97

DublinBelfast

DUB Dublin - BFS Belfast Intl

DUBBFS

Dublin

Tue 1/12

08:30-20:25

1 stop11h 55m

Belfast Intl

Tue 8/12

08:45-20:20

1 stop11h 35m

€100

DublinBelfast

DUB Dublin - BFS Belfast Intl

DUBBFS

Dublin

Fri 11/12

06:55-19:50

1 stop12h 55m

Belfast Intl

Thu 17/12

09:25-23:25

1 stop14h 00m

€101

Fastest return journey

DublinBelfast

DUB Dublin - BFS Belfast Intl

DUBBFS

Dublin

Fri 11/12

18:00-22:45

1 stop4h 45m

Belfast Intl

Thu 17/12

17:20-23:25

1 stop6h 05m

€102

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Ireland 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

How long is the flight from Ireland to Northern Ireland?

The flight from Ireland to Northern Ireland depends on which airports you’re departing from and arriving to, and whether or not you have a layover. If you fly from Shannon (a popular airport in Ireland) to Belfast Intl Airport (the most popular airport in Northern Ireland), then the flight time is 6h 45m on average. If you fly from Milltown (Kerry) (another popular airport in Ireland) to Belfast Intl Airport, then the average flight time is 6h 55m.

Cheap Ireland to Northern Ireland flight deals and tips

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

Best price found	€43
Fastest flight time	4h 40m
Direct flights	None

The best one-way flight to Northern Ireland from Ireland in the past 72 hours is €43. The best return flight deal from Ireland to Northern Ireland found on momondo in the last 72 hours is €85.

The fastest flight from Ireland to Northern Ireland takes 4h 40m

There are no direct flights from Ireland to Northern Ireland. There are no popular flight routes from Ireland to Northern Ireland.

Search flight deals

Frequently asked questions about flying from Ireland to Northern Ireland

When did momondo last update prices for flights from Ireland to Northern Ireland?
Prices for flights from Ireland to Northern Ireland are refreshed on a daily basis.
How old do you have to be to fly from Ireland 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 Ireland to Northern Ireland.
What documentation or ID do you need to fly to Northern Ireland?
The travel and health documents required for your trip to Northern Ireland can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Northern Ireland. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Ireland to Northern Ireland for you.

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

All flight searches from Ireland to Northern Ireland on momondo can be filtered to show those which offer flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to Northern Ireland from Ireland. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes. momondo can track prices for Ireland to Northern Ireland flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.