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Cheap flights from Northern Ireland to Ireland from £42

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 26/3. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — DUB
6 Mar — 13 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Northern Ireland to Ireland

Enter your travel dates to find the best prices.

Cheapest flights from Northern Ireland to Ireland
Explore the most affordable flight options available from Northern Ireland to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 February 2026.

Sat 21/322:25
BFS
-
DUB
1 stop11h 00m
Multiple Airlines
Mon 23/320:00
DUB
-
BFS
1 stop13h 05m
Multiple Airlines
Deal found 3/2£79
Fri 6/318:00
BFS
-
ORK
1 stop13h 00m
Multiple Airlines
Sun 8/322:25
ORK
-
BFS
1 stop9h 00m
Multiple Airlines
Deal found 2/2£81
Mon 9/222:20
BFS
-
DUB
1 stop9h 30m
Multiple Airlines
Wed 11/206:45
DUB
-
BFS
1 stop3h 35m
Multiple Airlines
Deal found 2/2£83
Mon 2/322:20
BFS
-
DUB
1 stop9h 30m
Multiple Airlines
Mon 9/312:30
DUB
-
BFS
1 stop6h 25m
Multiple Airlines
Deal found 2/2£86
Sun 22/305:45
BFS
-
DUB
1 stop5h 50m
Multiple Airlines
Wed 25/306:45
DUB
-
BFS
1 stop3h 35m
Multiple Airlines
Deal found 3/2£87
Fri 20/318:00
BFS
-
DUB
1 stop5h 25m
Multiple Airlines
Fri 27/320:25
DUB
-
BFS
1 stop11h 00m
Multiple Airlines
Deal found 3/2£92
Tue 3/318:25
BFS
-
DUB
1 stop4h 40m
Multiple Airlines
Tue 10/321:15
DUB
-
BFS
1 stop10h 25m
Multiple Airlines
Deal found 3/2£93
Tue 3/309:25
BHD
-
DUB
1 stop5h 25m
Multiple Airlines
Tue 10/307:20
DUB
-
BHD
1 stop4h 15m
Multiple Airlines
Deal found 3/2£93
Thu 19/306:00
BFS
-
DUB
1 stop11h 50m
Multiple Airlines
Thu 26/308:30
DUB
-
BFS
1 stop14h 20m
Multiple Airlines
Deal found 1/2£94
Thu 19/314:50
BFS
-
ORK
1 stop6h 55m
Multiple Airlines
Thu 26/308:30
ORK
-
BFS
1 stop14h 20m
Multiple Airlines
Deal found 2/2£96
Fri 20/318:00
BFS
-
SNN
1 stop5h 35m
Multiple Airlines
Fri 27/322:00
SNN
-
BFS
1 stop10h 50m
Multiple Airlines
Deal found 3/2£99
Fri 27/318:00
BFS
-
ORK
1 stop4h 45m
Multiple Airlines
Sun 29/313:25
ORK
-
BFS
1 stop9h 15m
Multiple Airlines
Deal found 3/2£99

Find flight deals from Northern Ireland to Ireland

Keep the following information in mind while searching for Northern Ireland to Ireland flight deals. Data was last updated 4 February 2026.

Round-trip from

£79

One-way from

£42
21/3-23/3
  • 21/3-23/3
  • 2 total stops
  • 24h 05m total
  • Northern Ireland to Ireland
Search Deals
26/3
  • 26/3
  • 1 total stop
  • 9h 45m total
  • Northern Ireland to Ireland
Search Deals

Cheapflights 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, Cheapflights users made 858,174 searches. Data last updated 4 February 2026.
Use the filters below to find and compare flights from Northern Ireland to Ireland that are best for you.

Fly from

Northern Ireland

Fly to

Ireland

Route

Depart

Return

Price

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Sat 21/3

22:25-09:25

1 stop11h 00m

Dublin

Mon 23/3

20:00-09:05

1 stop13h 05m

£79

BelfastCork

BFS - ORK

BFSORK

Belfast Intl

Fri 6/3

18:00-07:00

1 stop13h 00m

Cork

Sun 8/3

22:25-07:25

1 stop9h 00m

£81

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Mon 2/3

22:20-07:50

1 stop9h 30m

Dublin

Mon 9/3

12:30-18:55

1 stop6h 25m

£86

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Mon 9/3

22:20-07:50

1 stop9h 30m

Dublin

Fri 13/3

12:00-21:05

1 stop9h 05m

£86

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Thu 19/3

14:00-19:00

1 stop5h 00m

Dublin

Thu 26/3

18:15-22:50

1 stop4h 35m

£89

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Fri 20/3

18:00-23:25

1 stop5h 25m

Dublin

Fri 27/3

20:25-07:25

1 stop11h 00m

£92

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Tue 3/3

18:25-23:05

1 stop4h 40m

Dublin

Tue 10/3

21:15-07:40

1 stop10h 25m

£93

BelfastDublin

BHD - DUB

BHDDUB

Belfast City

Tue 3/3

09:25-14:50

1 stop5h 25m

Dublin

Tue 10/3

07:20-11:35

1 stop4h 15m

£93

BelfastCork

BFS - ORK

BFSORK

Belfast Intl

Thu 19/3

14:50-21:45

1 stop6h 55m

Cork

Thu 26/3

08:30-22:50

1 stop14h 20m

£96

BelfastCork

BFS - ORK

BFSORK

Belfast Intl

Sat 21/3

07:20-18:25

1 stop11h 05m

Cork

Sat 28/3

22:40-08:35

1 stop9h 55m

£96

Flights are sorted by cheapest return flights first.

Deals found on 2/2

Showing 1-10 of 50 results
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Best time to book a flight from Northern Ireland to Ireland

Have a flexible travel schedule? Discover the best time to fly to Ireland from Northern Ireland with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Northern Ireland to Ireland
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Northern Ireland to Ireland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Northern Ireland to Ireland?

    There are many flights that can get you from Northern Ireland to Ireland in 44h 55m. Fly via KLM to get the fastest option. The distance from Northern Ireland to Ireland is about 220 mi.

  • Can I find deals for flights from Northern Ireland to Ireland that include hotel bookings?

    Yes. In addition to deals on Northern Ireland to Ireland flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Northern Ireland to Ireland?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Northern Ireland to Ireland.

  • Can I find deals for business class flights from Northern Ireland to Ireland?

    Yes. Cheapflights offers flight deals from Northern Ireland to Ireland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Alternative routes for Northern Ireland to Ireland

See prices for flight routes from nearby airports that may be better suited for you.
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Fly with Cheapflights

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How does Cheapflights help users find flights from Northern Ireland to Ireland?

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Millions of users choose and trust Cheapflights to book the best flight deals from Northern Ireland to Ireland for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Northern Ireland to Ireland with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Northern Ireland to Ireland, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Northern Ireland to Ireland become cheaper?

Yes, Cheapflights offers price alerts on Northern Ireland to Ireland flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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