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Cheap flights from Northern Ireland to Ireland from €46

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Northern Ireland to Ireland departing on 24/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags
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Find the cheapest flights from Northern Ireland to Ireland

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
19:20 - 01:00
BFS
-
DUB
5h 40m
1 stop
Multiple Airlines Logo
22:05 - 12:20
DUB
-
BFS
14h 15m
1 stop
€86Multiple Airlines
Fri, 17 Apr - Mon, 20 Apr
Multiple Airlines Logo
18:20 - 07:50
BFS
-
DUB
13h 30m
1 stop
Multiple Airlines Logo
06:15 - 19:15
DUB
-
BFS
13h 00m
1 stop
€87Multiple Airlines
Thu, 16 Apr - Thu, 23 Apr
Multiple Airlines Logo
09:40 - 01:00
BFS
-
DUB
15h 20m
1 stop
Multiple Airlines Logo
22:05 - 12:20
DUB
-
BFS
14h 15m
1 stop
€88Multiple Airlines
Fri, 17 Apr - Mon, 20 Apr
Multiple Airlines Logo
07:30 - 12:30
BFS
-
DUB
5h 00m
1 stop
Multiple Airlines Logo
16:15 - 23:20
DUB
-
BFS
7h 05m
1 stop
€89Multiple Airlines
Wed, 15 Apr - Wed, 22 Apr
Multiple Airlines Logo
15:40 - 23:55
BFS
-
ORK
8h 15m
1 stop
Multiple Airlines Logo
17:15 - 23:20
ORK
-
BFS
6h 05m
1 stop
€89Multiple Airlines
Wed, 15 Apr - Wed, 22 Apr
Multiple Airlines Logo
16:40 - 21:00
BFS
-
ORK
4h 20m
1 stop
Multiple Airlines Logo
22:25 - 07:05
ORK
-
BFS
8h 40m
1 stop
€92Multiple Airlines
Tue, 14 Apr - Tue, 21 Apr
Multiple Airlines Logo
10:45 - 00:10
BFS
-
DUB
13h 25m
1 stop
Multiple Airlines Logo
06:30 - 12:20
DUB
-
BFS
5h 50m
1 stop
€93Multiple Airlines
Tue, 14 Apr - Tue, 21 Apr
Multiple Airlines Logo
16:40 - 21:35
BFS
-
SNN
4h 55m
1 stop
Multiple Airlines Logo
08:00 - 12:20
SNN
-
BFS
4h 20m
1 stop
€93Multiple Airlines
Tue, 14 Apr - Tue, 21 Apr
Multiple Airlines Logo
09:15 - 17:30
BFS
-
DUB
8h 15m
1 stop
Multiple Airlines Logo
21:20 - 07:05
DUB
-
BFS
9h 45m
1 stop
€94Multiple Airlines
Tue, 31 Mar - Tue, 7 Apr
Multiple Airlines Logo
17:05 - 20:30
BFS
-
DUB
3h 25m
1 stop
Multiple Airlines Logo
14:35 - 21:30
DUB
-
BFS
6h 55m
1 stop
€96Multiple Airlines
Fri, 17 Apr - Mon, 20 Apr

British Airways flights from Northern Ireland to Ireland

Our best British Airways deals on Northern Ireland to Ireland flight tickets
British Airways
16 Apr
BHD06:30Belfast City
11h 30m
1 stop
DUB18:00Dublin
20 Apr
DUB20:30Dublin
12h 20m
1 stop
BHD08:50Belfast City
€203
British Airways
16 Apr
BHD06:30Belfast City
11h 30m
1 stop
DUB18:00Dublin
20 Apr
DUB20:30Dublin
11h 05m
1 stop
BHD07:35Belfast City
€204
British Airways
2 Jun
BHD13:45Belfast City
5h 50m
1 stop
DUB19:35Dublin
3 Jun
DUB20:30Dublin
12h 20m
1 stop
BHD08:50Belfast City
€205

KLM flights from Northern Ireland to Ireland

Our best KLM deals on Northern Ireland to Ireland flight tickets
KLM
17 Apr
BHD17:30Belfast City
14h 50m
1 stop
DUB08:20Dublin
20 Apr
DUB13:25Dublin
19h 55m
1 stop
BHD09:20Belfast City
€323
KLM
18 Apr
LDY06:30Londonderry Eglinton
15h 55m
2 stops
DUB22:25Dublin
25 Apr
DUB11:10Dublin
25h 40m
2 stops
LDY12:50Londonderry Eglinton
€380
KLM
9 Apr
LDY06:30Londonderry Eglinton
15h 55m
2 stops
DUB22:25Dublin
15 Apr
DUB08:55Dublin
8h 45m
2 stops
LDY17:40Londonderry Eglinton
€441

momondo Fare Finder

 
Customise your flight search to find flights from Northern Ireland to 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 5 March 2026.
Use the filters below to find and compare flights from Northern Ireland to Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Fri 17/4

19:20-01:00

1 stop5h 40m

Dublin

Mon 20/4

22:05-12:20

1 stop14h 15m

€86

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Thu 16/4

18:20-07:50

1 stop13h 30m

Dublin

Thu 23/4

06:15-19:15

1 stop13h 00m

€87

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Fri 17/4

09:40-01:00

1 stop15h 20m

Dublin

Mon 20/4

22:05-12:20

1 stop14h 15m

€88

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Wed 15/4

07:30-12:30

1 stop5h 00m

Dublin

Wed 22/4

16:15-23:20

1 stop7h 05m

€89

BelfastCork

BFS - ORK

BFSORK

Belfast Intl

Wed 15/4

15:40-23:55

1 stop8h 15m

Cork

Wed 22/4

17:15-23:20

1 stop6h 05m

€89

BelfastCork

BFS - ORK

BFSORK

Belfast Intl

Tue 14/4

16:40-21:00

1 stop4h 20m

Cork

Tue 21/4

22:25-07:05

1 stop8h 40m

€92

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Tue 14/4

10:45-00:10

1 stop13h 25m

Dublin

Tue 21/4

06:30-12:20

1 stop5h 50m

€93
Fastest return journey

BelfastShannon

BFS - SNN

BFSSNN

Belfast Intl

Tue 14/4

16:40-21:35

1 stop4h 55m

Shannon

Tue 21/4

08:00-12:20

1 stop4h 20m

€93

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Tue 31/3

09:15-17:30

1 stop8h 15m

Dublin

Tue 7/4

21:20-07:05

1 stop9h 45m

€94

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Fri 17/4

17:05-20:30

1 stop3h 25m

Dublin

Mon 20/4

14:35-21:30

1 stop6h 55m

€96

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 Ireland from

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

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

Cheap Northern Ireland to Ireland flight deals and tips

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

Fastest flight time

3h 45m

Direct flights

None
The fastest flight from Northern Ireland to Ireland takes 3h 45m
There are no direct flights from Northern Ireland to Ireland. There are no popular flight routes from Northern Ireland to Ireland.
Search flight deals

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

    Prices for flights from Northern Ireland to Ireland are updated daily.

  • How old do you have to be to fly from Northern Ireland to Ireland?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Northern Ireland to Ireland.

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

    The required travel and health documents for your 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 licence and a passport valid for six months after your intended arrival at Ireland. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

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

It is quick and easy to find Northern Ireland to 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 Ireland that suits you.

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

Yes. All flights to Ireland from Northern Ireland on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Ireland from Northern Ireland.

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

If you are simply researching potential flights to Ireland, momondo offers a useful price alert feature which will track prices for flights to Ireland from Northern Ireland and alert you when they change.

An easier way to manage your Ireland trip

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Find better results for your trip to Ireland

Popular Cities in Ireland

Popular flights according to clicks in the last 7 days on momondo
Flights to Dublinfrom €38
Flights to Corkfrom €80
Flights to Shannon, Clarefrom €82
Flights to Donegalfrom €101
Flights to Milltown (Kerry)from €38