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Cheap flights from Ireland to Northern Ireland from €48

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 15/12. 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
06:45 - 10:20DUB-BFS
3h 35m1 stop
Multiple Airlines Logo
07:55 - 13:25BFS-DUB
5h 30m1 stop
€90Multiple Airlines
Find Deal
Wed, 7 Jan - Wed, 14 Jan
Multiple Airlines Logo
05:45 - 18:55DUB-BFS
13h 10m1 stop
Multiple Airlines Logo
19:20 - 22:30BFS-DUB
3h 10m1 stop
€91Multiple Airlines
Find Deal
Mon, 5 Jan - Mon, 12 Jan
Multiple Airlines Logo
22:15 - 07:35ORK-BFS
9h 20m1 stop
Multiple Airlines Logo
22:20 - 07:20BFS-ORK
9h 00m1 stop
€96Multiple Airlines
Find Deal
Mon, 5 Jan - Mon, 12 Jan
Multiple Airlines Logo
05:45 - 19:20DUB-BFS
13h 35m1 stop
Multiple Airlines Logo
08:50 - 19:35BFS-DUB
10h 45m1 stop
€97Multiple Airlines
Find Deal
Thu, 15 Jan - Thu, 22 Jan
Multiple Airlines Logo
22:25 - 08:55ORK-BFS
10h 30m1 stop
Multiple Airlines Logo
10:30 - 19:00BFS-ORK
8h 30m1 stop
€97Multiple Airlines
Find Deal
Mon, 5 Jan - Mon, 12 Jan
Multiple Airlines Logo
05:45 - 16:45SNN-BFS
11h 00m1 stop
Multiple Airlines Logo
06:00 - 13:55BFS-SNN
7h 55m1 stop
€98Multiple Airlines
Find Deal
Thu, 15 Jan - Wed, 21 Jan
Multiple Airlines Logo
20:00 - 09:20DUB-BFS
13h 20m1 stop
Multiple Airlines Logo
06:00 - 20:05BFS-DUB
14h 05m1 stop
€98Multiple Airlines
Find Deal
Wed, 7 Jan - Wed, 14 Jan
Multiple Airlines Logo
22:15 - 07:35ORK-BFS
9h 20m1 stop
Multiple Airlines Logo
10:30 - 19:00BFS-ORK
8h 30m1 stop
€98Multiple Airlines
Find Deal
Mon, 5 Jan - Mon, 12 Jan
KLM Logo
08:50 - 17:35DUB-LDY
8h 45m2 stops
KLM Logo
09:05 - 22:10LDY-DUB
13h 05m2 stops
€313KLM
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Mon, 12 Jan - Sun, 18 Jan
British Airways Logo
10:45 - 17:35DUB-LDY
6h 50m1 stop
British Airways Logo
09:05 - 14:15LDY-DUB
5h 10m1 stop
€322British Airways
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Mon, 12 Jan - Sun, 18 Jan

Aer Lingus flights from Ireland to Northern Ireland

Our best Aer Lingus deals on Ireland to Northern Ireland flight tickets
Aer Lingus
21 Dec
DUB06:40Dublin
13h 15m
1 stop
BHD19:55Belfast City
28 Dec
BHD06:55Belfast City
7h 55m
1 stop
DUB14:50Dublin
€162
Find similar
Aer Lingus
20 Dec
DUB06:40Dublin
14h 15m
1 stop
BHD20:55Belfast City
27 Dec
BHD07:15Belfast City
6h 00m
1 stop
DUB13:15Dublin
€182
Find similar
Aer Lingus
19 Dec
DUB07:30Dublin
6h 35m
1 stop
BHD14:05Belfast City
22 Dec
BHD12:00Belfast City
5h 40m
1 stop
DUB17:40Dublin
€187
Find similar

KLM flights from Ireland to Northern Ireland

Our best KLM deals on Ireland to Northern Ireland flight tickets
KLM
15 Jan
DUB05:55Dublin
10h 55m
1 stop
BHD16:50Belfast City
22 Jan
BHD17:20Belfast City
4h 50m
1 stop
DUB22:10Dublin
€199
Find similar
KLM
15 Jan
ORK06:00Cork
10h 50m
1 stop
BHD16:50Belfast City
22 Jan
BHD17:20Belfast City
21h 25m
2 stops
ORK14:45Cork
€298
Find similar
KLM
12 Jan
DUB08:50Dublin
8h 45m
2 stops
LDY17:35Londonderry Eglinton
18 Jan
LDY09:05Londonderry Eglinton
13h 05m
2 stops
DUB22:10Dublin
€313
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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 23 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

Wed 7/1

06:45-10:20

1 stop3h 35m

Belfast Intl

Wed 14/1

07:55-13:25

1 stop5h 30m

€90

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Mon 5/1

05:45-18:55

1 stop13h 10m

Belfast Intl

Mon 12/1

19:20-22:30

1 stop3h 10m

€91

CorkBelfast

ORK - BFS

ORKBFS

Cork

Mon 5/1

22:15-07:35

1 stop9h 20m

Belfast Intl

Mon 12/1

22:20-07:20

1 stop9h 00m

€96

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Thu 15/1

05:45-19:20

1 stop13h 35m

Belfast Intl

Thu 22/1

08:50-19:35

1 stop10h 45m

€97

CorkBelfast

ORK - BFS

ORKBFS

Cork

Mon 5/1

22:25-08:55

1 stop10h 30m

Belfast Intl

Mon 12/1

10:30-19:00

1 stop8h 30m

€97

ShannonBelfast

SNN - BFS

SNNBFS

Shannon

Thu 15/1

05:45-16:45

1 stop11h 00m

Belfast Intl

Wed 21/1

06:00-13:55

1 stop7h 55m

€98

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Wed 7/1

20:00-09:20

1 stop13h 20m

Belfast Intl

Wed 14/1

06:00-20:05

1 stop14h 05m

€98

CorkBelfast

ORK - BFS

ORKBFS

Cork

Mon 5/1

22:15-07:35

1 stop9h 20m

Belfast Intl

Mon 12/1

10:30-19:00

1 stop8h 30m

€98

DublinLondonderry

DUB - LDY

DUBLDY

Dublin

Mon 12/1

08:50-17:35

2 stops8h 45m

Londonderry Eglinton

Sun 18/1

09:05-22:10

2 stops13h 05m

€313

DublinLondonderry

DUB - LDY

DUBLDY

Dublin

Mon 12/1

10:45-17:35

1 stop6h 50m

Londonderry Eglinton

Sun 18/1

09:05-14:15

1 stop5h 10m

€322

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?

Ryanair is the most popular carrier 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
7,535 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.

An easier way to manage your Northern Ireland trip

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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
Flights to Londonfrom €33
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Flights to Newcastle upon Tynefrom €37
Flights to Leedsfrom €34
Flights to Aberdeenfrom €100
Flights to Exeterfrom €128