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Cheap flights from Ireland to Northern Ireland from €49

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ireland to Northern Ireland departing on 3/12. 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 Ireland to Northern Ireland

Recent return flight deals from Ireland to Northern Ireland

Enter your travel dates to find the best prices.
Multiple Airlines Logo
07:00 - 12:00DUB-BFS
5h 00m1 stop
Multiple Airlines Logo
17:15 - 22:25BFS-DUB
5h 10m1 stop
€108Multiple Airlines
Find Deal
Tue, 16 Dec - Thu, 18 Dec
Multiple Airlines Logo
22:40 - 06:45ORK-BFS
8h 05m1 stop
Multiple Airlines Logo
23:05 - 07:10BFS-ORK
8h 05m1 stop
€113Multiple Airlines
Find Deal
Sat, 20 Dec - Sun, 21 Dec
Multiple Airlines Logo
22:10 - 07:55DUB-BFS
9h 45m1 stop
Multiple Airlines Logo
17:30 - 00:35BFS-DUB
7h 05m1 stop
€114Multiple Airlines
Find Deal
Mon, 1 Dec - Mon, 8 Dec
Multiple Airlines Logo
18:55 - 08:25DUB-BFS
13h 30m1 stop
Multiple Airlines Logo
21:05 - 07:15BFS-DUB
10h 10m1 stop
€115Multiple Airlines
Find Deal
Sat, 6 Dec - Fri, 12 Dec
KLM Logo
13:25 - 21:00DUB-BHD
7h 35m1 stop
KLM Logo
17:20 - 22:10BHD-DUB
4h 50m1 stop
€198KLM
Find Deal
Sat, 6 Dec - Fri, 12 Dec
KLM Logo
13:25 - 21:00DUB-BHD
7h 35m1 stop
KLM Logo
17:20 - 22:10BHD-DUB
4h 50m1 stop
€199KLM
Find Deal
Sat, 22 Nov - Sat, 29 Nov
Aer Lingus Logo
08:30 - 20:50DUB-BHD
12h 20m1 stop
Aer Lingus Logo
07:00 - 18:25BHD-DUB
11h 25m1 stop
€217Aer Lingus
Find Deal
Sat, 6 Dec - Fri, 12 Dec
British Airways Logo
17:55 - 09:10DUB-BHD
15h 15m1 stop
British Airways Logo
19:35 - 07:55BHD-DUB
12h 20m1 stop
€226British Airways
Find Deal
Sat, 6 Dec - Fri, 12 Dec
British Airways Logo
20:40 - 09:10DUB-BHD
12h 30m1 stop
British Airways Logo
19:35 - 07:55BHD-DUB
12h 20m1 stop
€227British Airways
Find Deal
Sat, 6 Dec - Fri, 12 Dec
Aer Lingus Logo
08:30 - 20:50DUB-BHD
12h 20m1 stop
Aer Lingus Logo
07:00 - 20:45BHD-DUB
13h 45m1 stop
€281Aer Lingus
Find Deal
Sat, 6 Dec - Fri, 12 Dec

KLM flights from Ireland to Northern Ireland

Our best KLM deals on Ireland to Northern Ireland flight tickets
KLM
6 Dec
DUB13:25Dublin
7h 35m
1 stop
BHD21:00Belfast City
12 Dec
BHD17:20Belfast City
4h 50m
1 stop
DUB22:10Dublin
€198
Find similar
KLM
22 Nov
DUB13:25Dublin
7h 35m
1 stop
BHD21:00Belfast City
29 Nov
BHD17:20Belfast City
4h 50m
1 stop
DUB22:10Dublin
€198
Find similar
KLM
8 Dec
ORK06:00Cork
15h 00m
1 stop
BHD21:00Belfast City
15 Dec
BHD17:20Belfast City
17h 25m
1 stop
ORK10:45Cork
€244
Find similar

Aer Lingus flights from Ireland to Northern Ireland

Our best Aer Lingus deals on Ireland to Northern Ireland flight tickets
Aer Lingus
6 Dec
DUB08:30Dublin
12h 20m
1 stop
BHD20:50Belfast City
12 Dec
BHD07:00Belfast City
11h 25m
1 stop
DUB18:25Dublin
€217
Find similar
Aer Lingus
6 Dec
DUB08:30Dublin
12h 20m
1 stop
BHD20:50Belfast City
12 Dec
BHD07:00Belfast City
13h 45m
1 stop
DUB20:45Dublin
€281
Find similar
Aer Lingus
22 Nov
DUB08:30Dublin
12h 20m
1 stop
BHD20:50Belfast City
29 Nov
BHD07:00Belfast City
10h 00m
1 stop
DUB17:00Dublin
€317
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Ireland 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 13,528 searches. Data last updated 2 November 2025.
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

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Tue 16/12

07:00-12:00

1 stop5h 00m

Belfast Intl

Thu 18/12

17:15-22:25

1 stop5h 10m

€108

CorkBelfast

ORK - BFS

ORKBFS

Cork

Sat 20/12

22:40-06:45

1 stop8h 05m

Belfast Intl

Sun 21/12

23:05-07:10

1 stop8h 05m

€113

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Mon 1/12

22:10-07:55

1 stop9h 45m

Belfast Intl

Mon 8/12

17:30-00:35

1 stop7h 05m

€114

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Sat 6/12

18:55-08:25

1 stop13h 30m

Belfast Intl

Fri 12/12

21:05-07:15

1 stop10h 10m

€115

DublinBelfast

DUB - BHD

DUBBHD

Dublin

Sat 6/12

13:25-21:00

1 stop7h 35m

Belfast City

Fri 12/12

17:20-22:10

1 stop4h 50m

€198

DublinBelfast

DUB - BHD

DUBBHD

Dublin

Sat 22/11

13:25-21:00

1 stop7h 35m

Belfast City

Sat 29/11

17:20-22:10

1 stop4h 50m

€198

DublinBelfast

DUB - BHD

DUBBHD

Dublin

Sat 6/12

08:30-20:50

1 stop12h 20m

Belfast City

Fri 12/12

07:00-18:25

1 stop11h 25m

€217

DublinBelfast

DUB - BHD

DUBBHD

Dublin

Sat 6/12

17:55-09:10

1 stop15h 15m

Belfast City

Fri 12/12

19:35-07:55

1 stop12h 20m

€226

DublinBelfast

DUB - BHD

DUBBHD

Dublin

Sat 6/12

20:40-09:10

1 stop12h 30m

Belfast City

Fri 12/12

19:35-07:55

1 stop12h 20m

€227

DublinBelfast

DUB - BHD

DUBBHD

Dublin

Sat 6/12

08:30-20:50

1 stop12h 20m

Belfast City

Fri 12/12

07:00-20:45

1 stop13h 45m

€281

Flights are sorted by cheapest return 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 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

What is the cheapest airline that flies from Ireland to Northern Ireland?

Aer Lingus and KLM are the most popular carriers operating from Ireland to Northern Ireland

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

Direct flights

None
There are no direct flights from Ireland to Northern Ireland. There are no popular flight routes from Ireland to Northern Ireland.
Search flight deals

  • 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 many operators does momondo search for flights from Ireland to Northern Ireland?

  • 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.

Best airlines flying from Ireland to Northern Ireland

Compare and see reviews for airlines that fly from Ireland to Northern Ireland with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom €263Free CancellationRating
6.7
7,494 reviews
Search British Airways flights

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.

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Find better results for your trip to Northern Ireland

Popular Cities in Northern Ireland

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