Cheap flights from Northern Ireland to Ireland from €57

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 21/1. 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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Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
07:00 - 17:20BFS-DUB
10h 20m1 stop
Multiple Airlines Logo
07:20 - 20:45DUB-BFS
13h 25m1 stop
€108Multiple Airlines
Find Deal
Thu, 4 Dec - Mon, 8 Dec
Multiple Airlines Logo
21:05 - 07:15BFS-DUB
10h 10m1 stop
Multiple Airlines Logo
06:30 - 10:30DUB-BFS
4h 00m1 stop
€113Multiple Airlines
Find Deal
Fri, 21 Nov - Fri, 28 Nov
Multiple Airlines Logo
08:00 - 21:25LDY-DUB
13h 25m1 stop
Multiple Airlines Logo
08:30 - 12:45DUB-LDY
4h 15m1 stop
€113Multiple Airlines
Find Deal
Fri, 7 Nov - Sat, 8 Nov
Multiple Airlines Logo
14:00 - 23:45BFS-DUB
9h 45m1 stop
Multiple Airlines Logo
10:00 - 22:10DUB-BFS
12h 10m1 stop
€114Multiple Airlines
Find Deal
Thu, 27 Nov - Thu, 4 Dec
Multiple Airlines Logo
06:40 - 15:05BFS-DUB
8h 25m1 stop
Multiple Airlines Logo
16:30 - 22:50DUB-BFS
6h 20m1 stop
€115Multiple Airlines
Find Deal
Mon, 10 Nov - Thu, 13 Nov
Aer Lingus Logo
10:20 - 17:20BHD-DUB
7h 00m1 stop
Aer Lingus Logo
07:20 - 12:50DUB-BHD
5h 30m1 stop
€163Aer Lingus
Find Deal
Thu, 4 Dec - Mon, 8 Dec
British Airways Logo
15:05 - 19:50BHD-DUB
4h 45m1 stop
British Airways Logo
17:55 - 07:40DUB-BHD
13h 45m1 stop
€195British Airways
Find Deal
Sat, 7 Mar - Mon, 9 Mar
British Airways Logo
09:15 - 15:05BHD-DUB
5h 50m1 stop
British Airways Logo
10:45 - 18:40DUB-BHD
7h 55m1 stop
€196British Airways
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Sat, 7 Mar - Mon, 9 Mar
KLM Logo
17:20 - 23:25BHD-ORK
6h 05m1 stop
KLM Logo
11:15 - 16:50ORK-BHD
5h 35m1 stop
€280KLM
Find Deal
Sat, 6 Dec - Sat, 13 Dec
KLM Logo
17:20 - 23:25BHD-ORK
6h 05m1 stop
KLM Logo
11:15 - 16:50ORK-BHD
5h 35m1 stop
€280KLM
Find Deal
Sat, 6 Dec - Sat, 13 Dec

Aer Lingus flights from Northern Ireland to Ireland

Our best Aer Lingus deals on Northern Ireland to Ireland flight tickets
Aer Lingus
4 Dec
BHD10:20Belfast City
7h 00m
1 stop
DUB17:20Dublin
8 Dec
DUB07:20Dublin
5h 30m
1 stop
BHD12:50Belfast City
Aer Lingus
18 Oct
BHD06:50Belfast City
16h 55m
3 stops
ORK23:45Cork
25 Oct
ORK20:30Cork
25h 25m
3 stops
BHD21:55Belfast City
€1,059
Find similar

British Airways flights from Northern Ireland to Ireland

Our best British Airways deals on Northern Ireland to Ireland flight tickets
British Airways
7 Mar
BHD15:05Belfast City
4h 45m
1 stop
DUB19:50Dublin
9 Mar
DUB17:55Dublin
13h 45m
1 stop
BHD07:40Belfast City
British Airways
7 Mar
BHD09:15Belfast City
5h 50m
1 stop
DUB15:05Dublin
9 Mar
DUB10:45Dublin
7h 55m
1 stop
BHD18:40Belfast City
British Airways
30 Mar
BHD18:30Belfast City
13h 15m
1 stop
DUB07:45Dublin
31 Mar
DUB10:30Dublin
5h 10m
1 stop
BHD15:40Belfast City

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 13 October 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

Thu 4/12

07:00-17:20

1 stop10h 20m

Dublin

Mon 8/12

07:20-20:45

1 stop13h 25m

€108

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Fri 21/11

21:05-07:15

1 stop10h 10m

Dublin

Fri 28/11

06:30-10:30

1 stop4h 00m

€113

LondonderryDublin

LDY - DUB

LDYDUB

Londonderry Eglinton

Fri 7/11

08:00-21:25

1 stop13h 25m

Dublin

Sat 8/11

08:30-12:45

1 stop4h 15m

€113

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Thu 27/11

14:00-23:45

1 stop9h 45m

Dublin

Thu 4/12

10:00-22:10

1 stop12h 10m

€114

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Mon 10/11

06:40-15:05

1 stop8h 25m

Dublin

Thu 13/11

16:30-22:50

1 stop6h 20m

€115

BelfastDublin

BHD - DUB

BHDDUB

Belfast City

Thu 4/12

10:20-17:20

1 stop7h 00m

Dublin

Mon 8/12

07:20-12:50

1 stop5h 30m

€163

BelfastDublin

BHD - DUB

BHDDUB

Belfast City

Sat 7/3

15:05-19:50

1 stop4h 45m

Dublin

Mon 9/3

17:55-07:40

1 stop13h 45m

€195

BelfastDublin

BHD - DUB

BHDDUB

Belfast City

Sat 7/3

09:15-15:05

1 stop5h 50m

Dublin

Mon 9/3

10:45-18:40

1 stop7h 55m

€196

BelfastCork

BHD - ORK

BHDORK

Belfast City

Sat 6/12

17:20-23:25

1 stop6h 05m

Cork

Sat 13/12

11:15-16:50

1 stop5h 35m

€280

BelfastCork

BHD - ORK

BHDORK

Belfast City

Sat 6/12

17:20-23:25

1 stop6h 05m

Cork

Sat 13/12

11:15-16:50

1 stop5h 35m

€280

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?

Ryanair 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

Direct flights

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

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1 adult
Wed 12/11
Wed 19/11

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