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Cheap flights from Northern Ireland to Ireland from £38

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 3/8. 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
15:40 - 20:45
BFS
-
DUB
5h 05m
1 stop
Multiple Airlines Logo
20:30 - 08:05
DUB
-
BFS
11h 35m
1 stop
£74Multiple Airlines
Wed, 10 Jun - Tue, 30 Jun
Multiple Airlines Logo
15:40 - 23:55
BFS
-
ORK
8h 15m
1 stop
Multiple Airlines Logo
09:55 - 15:15
ORK
-
BFS
5h 20m
1 stop
£74Multiple Airlines
Wed, 3 Jun - Wed, 10 Jun
Multiple Airlines Logo
22:45 - 08:20
BFS
-
ORK
9h 35m
1 stop
Multiple Airlines Logo
09:55 - 15:15
ORK
-
BFS
5h 20m
1 stop
£75Multiple Airlines
Thu, 4 Jun - Wed, 10 Jun
Multiple Airlines Logo
07:30 - 12:30
BFS
-
DUB
5h 00m
1 stop
Multiple Airlines Logo
20:30 - 08:05
DUB
-
BFS
11h 35m
1 stop
£75Multiple Airlines
Wed, 10 Jun - Tue, 30 Jun
Multiple Airlines Logo
22:45 - 08:20
BFS
-
ORK
9h 35m
1 stop
Multiple Airlines Logo
17:25 - 22:20
ORK
-
BFS
4h 55m
1 stop
£75Multiple Airlines
Thu, 28 May - Thu, 4 Jun
Multiple Airlines Logo
22:45 - 08:20
BFS
-
ORK
9h 35m
1 stop
Multiple Airlines Logo
09:55 - 15:15
ORK
-
BFS
5h 20m
1 stop
£76Multiple Airlines
Thu, 4 Jun - Wed, 10 Jun
Multiple Airlines Logo
07:30 - 12:30
BFS
-
DUB
5h 00m
1 stop
Multiple Airlines Logo
20:30 - 08:05
DUB
-
BFS
11h 35m
1 stop
£77Multiple Airlines
Wed, 10 Jun - Tue, 30 Jun
Multiple Airlines Logo
12:45 - 16:55
BFS
-
ORK
4h 10m
1 stop
Multiple Airlines Logo
15:20 - 19:50
ORK
-
BFS
4h 30m
1 stop
£77Multiple Airlines
Thu, 4 Jun - Wed, 10 Jun
Multiple Airlines Logo
08:40 - 14:55
BFS
-
DUB
6h 15m
1 stop
Multiple Airlines Logo
20:35 - 10:00
DUB
-
BFS
13h 25m
1 stop
£78Multiple Airlines
Mon, 8 Jun - Mon, 15 Jun
British Airways Logo
06:30 - 16:10
BHD
-
SNN
9h 40m
1 stop
British Airways Logo
21:15 - 08:50
SNN
-
BHD
11h 35m
1 stop
£345British Airways
Tue, 16 Jun - Wed, 17 Jun

British Airways flights from Northern Ireland to Ireland

Our best British Airways deals on Northern Ireland to Ireland flight tickets
British Airways
4 Sept
BHD06:30Belfast City
12h 50m
1 stop
DUB19:20Dublin
7 Sept
DUB20:30Dublin
12h 20m
1 stop
BHD08:50Belfast City
£193
British Airways
30 May
BHD07:05Belfast City
12h 20m
1 stop
DUB19:25Dublin
3 Jun
DUB20:30Dublin
17h 05m
1 stop
BHD13:35Belfast City
£205
British Airways
30 May
BHD07:05Belfast City
10h 45m
1 stop
DUB17:50Dublin
3 Jun
DUB20:30Dublin
12h 20m
1 stop
BHD08:50Belfast City
£210

Aer Lingus flights from Northern Ireland to Ireland

Our best Aer Lingus deals on Northern Ireland to Ireland flight tickets
Aer Lingus
4 Jun
BHD17:05Belfast City
4h 25m
1 stop
DUB21:30Dublin
7 Jun
DUB06:30Dublin
13h 35m
1 stop
BHD20:05Belfast City
£159
Aer Lingus
28 May
BHD12:50Belfast City
6h 00m
1 stop
ORK18:50Cork
4 Jun
ORK07:10Cork
6h 30m
1 stop
BHD13:40Belfast City
£395

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 13 May 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

Wed 10/6

15:40-20:45

1 stop5h 05m

Dublin

Tue 30/6

20:30-08:05

1 stop11h 35m

£74

BelfastCork

BFS - ORK

BFSORK

Belfast Intl

Wed 3/6

15:40-23:55

1 stop8h 15m

Cork

Wed 10/6

09:55-15:15

1 stop5h 20m

£74

BelfastCork

BFS - ORK

BFSORK

Belfast Intl

Thu 4/6

22:45-08:20

1 stop9h 35m

Cork

Wed 10/6

09:55-15:15

1 stop5h 20m

£75

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Wed 10/6

07:30-12:30

1 stop5h 00m

Dublin

Tue 30/6

20:30-08:05

1 stop11h 35m

£75

BelfastCork

BFS - ORK

BFSORK

Belfast Intl

Thu 28/5

22:45-08:20

1 stop9h 35m

Cork

Thu 4/6

17:25-22:20

1 stop4h 55m

£75

BelfastCork

BFS - ORK

BFSORK

Belfast Intl

Thu 4/6

22:45-08:20

1 stop9h 35m

Cork

Wed 10/6

09:55-15:15

1 stop5h 20m

£76

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Wed 10/6

07:30-12:30

1 stop5h 00m

Dublin

Tue 30/6

20:30-08:05

1 stop11h 35m

£77
Fastest return journey

BelfastCork

BFS - ORK

BFSORK

Belfast Intl

Thu 4/6

12:45-16:55

1 stop4h 10m

Cork

Wed 10/6

15:20-19:50

1 stop4h 30m

£77

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Mon 8/6

08:40-14:55

1 stop6h 15m

Dublin

Mon 15/6

20:35-10:00

1 stop13h 25m

£78

BelfastShannon

BHD - SNN

BHDSNN

Belfast City

Tue 16/6

06:30-16:10

1 stop9h 40m

Shannon

Wed 17/6

21:15-08:50

1 stop11h 35m

£345

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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?

British Airways is the most popular carrier 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

4h 20m

Direct flights

None
The fastest flight from Northern Ireland to Ireland takes 4h 20m
There are no direct flights from Northern Ireland to Ireland. There are no popular flight routes from Northern Ireland to Ireland.
Search flight deals

Frequently asked questions about flying 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 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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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 £29
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Flights to Donegalfrom £137