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Cheap flights from Northern Ireland to 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 Northern Ireland to Ireland departing on 10/8. 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
1 adult, Economy, 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
12:45 - 23:55
BFS
-
DUB
11h 10m
1 stop
Multiple Airlines Logo
10:20 - 22:20
DUB
-
BFS
12h 00m
1 stop
€84Multiple Airlines
Thu, 23 Jul - Thu, 6 Aug
Multiple Airlines Logo
15:40 - 23:35
BFS
-
SNN
7h 55m
1 stop
Multiple Airlines Logo
08:50 - 15:15
SNN
-
BFS
6h 25m
1 stop
€84Multiple Airlines
Wed, 12 Aug - Wed, 19 Aug
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
€85Multiple Airlines
Wed, 5 Aug - Wed, 12 Aug
Multiple Airlines Logo
15:40 - 21:30
BFS
-
DUB
5h 50m
1 stop
Multiple Airlines Logo
06:30 - 15:15
DUB
-
BFS
8h 45m
1 stop
€86Multiple Airlines
Wed, 22 Jul - Wed, 29 Jul
Multiple Airlines Logo
12:45 - 23:55
BFS
-
DUB
11h 10m
1 stop
Multiple Airlines Logo
07:30 - 15:20
DUB
-
BFS
7h 50m
1 stop
€88Multiple Airlines
Thu, 30 Jul - Thu, 6 Aug
Multiple Airlines Logo
15:40 - 23:35
BFS
-
SNN
7h 55m
1 stop
Multiple Airlines Logo
08:50 - 15:15
SNN
-
BFS
6h 25m
1 stop
€88Multiple Airlines
Wed, 12 Aug - Wed, 19 Aug
Multiple Airlines Logo
21:40 - 08:30
BFS
-
ORK
10h 50m
1 stop
Multiple Airlines Logo
08:00 - 21:15
ORK
-
BFS
13h 15m
1 stop
€88Multiple Airlines
Sat, 8 Aug - Sat, 15 Aug
Multiple Airlines Logo
12:45 - 18:10
BFS
-
DUB
5h 25m
1 stop
Multiple Airlines Logo
21:20 - 07:05
DUB
-
BFS
9h 45m
1 stop
€89Multiple Airlines
Thu, 13 Aug - Tue, 18 Aug
Aer Lingus Logo
06:40 - 16:10
BHD
-
SNN
33h 30m
3 stops
Aer Lingus Logo
21:15 - 21:05
SNN
-
BHD
23h 50m
3 stops
€764Aer Lingus
Mon, 13 Jul - Mon, 20 Jul
British Airways Logo
06:30 - 11:20
BHD
-
SNN
4h 50m
1 stop
British Airways Logo
07:30 - 15:30
SNN
-
BHD
8h 00m
1 stop
€799British Airways
Wed, 16 Sep - Sat, 19 Sep

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British Airways flights from Northern Ireland to Ireland

Our best British Airways deals on Northern Ireland to Ireland flight tickets
British Airways
23 Sept
BHD19:40Belfast City
14h 00m
1 stop
DUB09:40Dublin
26 Sept
DUB20:15Dublin
13h 50m
1 stop
BHD10:05Belfast City
€192
British Airways
19 Aug
BHD11:35Belfast City
7h 15m
1 stop
DUB18:50Dublin
26 Aug
DUB08:35Dublin
9h 00m
1 stop
BHD17:35Belfast City
€208
British Airways
13 Aug
BHD20:35Belfast City
11h 10m
1 stop
DUB07:45Dublin
17 Aug
DUB20:30Dublin
12h 20m
1 stop
BHD08:50Belfast City
€209

KLM flights from Northern Ireland to Ireland

Our best KLM deals on Northern Ireland to Ireland flight tickets
KLM
13 Aug
BHD17:30Belfast City
4h 55m
1 stop
DUB22:25Dublin
17 Aug
DUB08:55Dublin
8h 00m
1 stop
BHD16:55Belfast City
€408
KLM
26 Jul
BHD17:30Belfast City
45h 10m
2 stops
ORK14:40Cork
2 Aug
ORK15:10Cork
25h 45m
2 stops
BHD16:55Belfast City
€598
KLM
2 Jul
LDY18:10Londonderry Eglinton
16h 15m
2 stops
DUB10:25Dublin
8 Jul
DUB08:55Dublin
12h 50m
2 stops
LDY21:45Londonderry Eglinton
€1,451

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 29 June 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

Thu 23/7

12:45-23:55

1 stop11h 10m

Dublin

Thu 6/8

10:20-22:20

1 stop12h 00m

€84

BelfastShannon

BFS - SNN

BFSSNN

Belfast Intl

Wed 12/8

15:40-23:35

1 stop7h 55m

Shannon

Wed 19/8

08:50-15:15

1 stop6h 25m

€84

BelfastCork

BFS - ORK

BFSORK

Belfast Intl

Wed 5/8

15:40-23:55

1 stop8h 15m

Cork

Wed 12/8

09:55-15:15

1 stop5h 20m

€85

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Wed 22/7

15:40-21:30

1 stop5h 50m

Dublin

Wed 29/7

06:30-15:15

1 stop8h 45m

€86

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Thu 30/7

12:45-23:55

1 stop11h 10m

Dublin

Thu 6/8

07:30-15:20

1 stop7h 50m

€88

BelfastShannon

BFS - SNN

BFSSNN

Belfast Intl

Wed 12/8

15:40-23:35

1 stop7h 55m

Shannon

Wed 19/8

08:50-15:15

1 stop6h 25m

€88

BelfastCork

BFS - ORK

BFSORK

Belfast Intl

Sat 8/8

21:40-08:30

1 stop10h 50m

Cork

Sat 15/8

08:00-21:15

1 stop13h 15m

€88

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Thu 13/8

12:45-18:10

1 stop5h 25m

Dublin

Tue 18/8

21:20-07:05

1 stop9h 45m

€89

BelfastShannon

BHD - SNN

BHDSNN

Belfast City

Mon 13/7

06:40-16:10

3 stops33h 30m

Shannon

Mon 20/7

21:15-21:05

3 stops23h 50m

€764
Fastest return journey

BelfastShannon

BHD - SNN

BHDSNN

Belfast City

Wed 16/9

06:30-11:20

1 stop4h 50m

Shannon

Sat 19/9

07:30-15:30

1 stop8h 00m

€799

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?

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

3h 30m

Direct flights

None
The fastest flight from Northern Ireland to Ireland takes 3h 30m
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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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 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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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 €40
Flights to Corkfrom €85
Flights to Shannon, Clarefrom €89
Flights to Milltown (Kerry)from €36
Flights to Donegalfrom €85