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Cheap flights from Northern Ireland to Ireland from £43

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 2/12. 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 Northern Ireland to Ireland

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
20:10 - 09:20BFS-DUB
13h 10m1 stop
Multiple Airlines Logo
21:40 - 09:05DUB-BFS
11h 25m1 stop
£82Multiple Airlines
Find Deal
gio, 15 gen - lun, 19 gen
Multiple Airlines Logo
14:45 - 19:10BFS-DUB
4h 25m1 stop
Multiple Airlines Logo
19:40 - 09:20DUB-BFS
13h 40m1 stop
£83Multiple Airlines
Find Deal
gio, 8 gen - mer, 14 gen
Multiple Airlines Logo
18:35 - 07:20BFS-ORK
12h 45m1 stop
Multiple Airlines Logo
13:40 - 22:40ORK-BFS
9h 00m1 stop
£83Multiple Airlines
Find Deal
gio, 8 gen - dom, 11 gen
Multiple Airlines Logo
22:25 - 07:00BFS-ORK
8h 35m1 stop
Multiple Airlines Logo
22:40 - 06:45ORK-BFS
8h 05m1 stop
£83Multiple Airlines
Find Deal
sab, 10 gen - sab, 17 gen
Multiple Airlines Logo
07:05 - 19:00BFS-DUB
11h 55m1 stop
Multiple Airlines Logo
10:05 - 16:10DUB-BFS
6h 05m1 stop
£84Multiple Airlines
Find Deal
gio, 8 gen - gio, 15 gen
Multiple Airlines Logo
14:00 - 23:45BFS-DUB
9h 45m1 stop
Multiple Airlines Logo
06:20 - 14:55DUB-BFS
8h 35m1 stop
£85Multiple Airlines
Find Deal
gio, 15 gen - lun, 19 gen
Aer Lingus Logo
14:25 - 18:10BHD-DUB
3h 45m1 stop
Aer Lingus Logo
06:40 - 11:20DUB-BHD
4h 40m1 stop
£133Aer Lingus
Find Deal
ven, 26 dic - ven, 2 gen
British Airways Logo
06:35 - 12:15BHD-DUB
5h 40m1 stop
British Airways Logo
10:45 - 16:45DUB-BHD
6h 00m1 stop
£176British Airways
Find Deal
gio, 15 gen - dom, 18 gen
British Airways Logo
06:35 - 15:05BHD-DUB
8h 30m1 stop
British Airways Logo
17:55 - 07:40DUB-BHD
13h 45m1 stop
£177British Airways
Find Deal
sab, 17 gen - lun, 19 gen
KLM Logo
17:20 - 22:10BHD-DUB
4h 50m1 stop
KLM Logo
05:55 - 16:50DUB-BHD
10h 55m1 stop
£209KLM
Find Deal
gio, 15 gen - lun, 19 gen

British Airways flights from Northern Ireland to Ireland

Our best British Airways deals on Northern Ireland to Ireland flight tickets
British Airways
15 Jan
BHD06:35Belfast City
5h 40m
1 stop
DUB12:15Dublin
18 Jan
DUB10:45Dublin
6h 00m
1 stop
BHD16:45Belfast City
£176
Find similar
British Airways
17 Jan
BHD06:35Belfast City
8h 30m
1 stop
DUB15:05Dublin
19 Jan
DUB17:55Dublin
13h 45m
1 stop
BHD07:40Belfast City
£177
Find similar
British Airways
8 Jan
LDY06:30Londonderry Eglinton
5h 45m
1 stop
DUB12:15Dublin
14 Jan
DUB20:40Dublin
13h 35m
1 stop
LDY10:15Londonderry Eglinton
£225
Find similar

KLM flights from Northern Ireland to Ireland

Our best KLM deals on Northern Ireland to Ireland flight tickets
KLM
15 Jan
BHD17:20Belfast City
4h 50m
1 stop
DUB22:10Dublin
19 Jan
DUB05:55Dublin
10h 55m
1 stop
BHD16:50Belfast City
£209
Find similar
KLM
8 Jan
LDY06:30Londonderry Eglinton
9h 50m
2 stops
DUB16:20Dublin
14 Jan
DUB05:55Dublin
11h 40m
2 stops
LDY17:35Londonderry Eglinton
£286
Find similar
KLM
17 Jan
BHD17:20Belfast City
21h 40m
2 stops
ORK15:00Cork
24 Jan
ORK15:40Cork
25h 10m
2 stops
BHD16:50Belfast City
£295
Find similar

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 279,928 searches. Data last updated 27 novembre 2025.
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

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

gio 15/1

20:10-09:20

1 stop13h 10m

Dublin

lun 19/1

21:40-09:05

1 stop11h 25m

£82

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

gio 8/1

14:45-19:10

1 stop4h 25m

Dublin

mer 14/1

19:40-09:20

1 stop13h 40m

£83

BelfastCork

BFS - ORK

BFSORK

Belfast Intl

gio 8/1

18:35-07:20

1 stop12h 45m

Cork

dom 11/1

13:40-22:40

1 stop9h 00m

£83

BelfastCork

BFS - ORK

BFSORK

Belfast Intl

sab 10/1

22:25-07:00

1 stop8h 35m

Cork

sab 17/1

22:40-06:45

1 stop8h 05m

£83

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

gio 8/1

07:05-19:00

1 stop11h 55m

Dublin

gio 15/1

10:05-16:10

1 stop6h 05m

£84

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

gio 15/1

14:00-23:45

1 stop9h 45m

Dublin

lun 19/1

06:20-14:55

1 stop8h 35m

£85

BelfastDublin

BHD - DUB

BHDDUB

Belfast City

ven 26/12

14:25-18:10

1 stop3h 45m

Dublin

ven 2/1

06:40-11:20

1 stop4h 40m

£133

BelfastDublin

BHD - DUB

BHDDUB

Belfast City

gio 15/1

06:35-12:15

1 stop5h 40m

Dublin

dom 18/1

10:45-16:45

1 stop6h 00m

£176

BelfastDublin

BHD - DUB

BHDDUB

Belfast City

sab 17/1

06:35-15:05

1 stop8h 30m

Dublin

lun 19/1

17:55-07:40

1 stop13h 45m

£177

BelfastDublin

BHD - DUB

BHDDUB

Belfast City

gio 15/1

17:20-22:10

1 stop4h 50m

Dublin

lun 19/1

05:55-16:50

1 stop10h 55m

£209

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 time of day to depart on your flight to Ireland?

In the afternoon is the cheapest time of day to fly from Northern Ireland to Ireland when you can find flight prices for as low as £139. Flying to Ireland in the afternoon is an ideal time because this is during off-peak travel hours. Flights to Ireland are more costly in the morning, with an average ticket price of £159. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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 39m

Direct flights

None
The fastest flight from Northern Ireland to Ireland takes 3h 39m
There are no direct flights from Northern Ireland to Ireland. There are no popular flight routes from Northern Ireland to Ireland.
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  • When did momondo last update prices for flights from Northern Ireland to Ireland?

    Prices for flights from Northern Ireland to Ireland were last updated today.

  • 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 layovers. 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 license 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?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Northern Ireland to Ireland . Millions of users trust and use momondo every year so you are in good hands.

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?

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

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

Price alerts on flights to Ireland from Northern Ireland 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.

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