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Cheap flights from Northern Ireland to Dublin 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
4 Mar — 11 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Northern Ireland to Dublin

Enter your travel dates to find the best prices.

Cheapest flights from Northern Ireland to Dublin
Explore the most affordable flight options available from Northern Ireland to Dublin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 February 2026.

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
Sat 28/205:45
BFS
-
DUB
1 stop7h 55m
Multiple Airlines
Sat 7/306:50
DUB
-
BFS
1 stop8h 20m
Multiple Airlines
Deal found 31/1£85
Sat 21/305:45
BFS
-
DUB
1 stop5h 50m
Multiple Airlines
Sun 22/306:30
DUB
-
BFS
1 stop5h 30m
Multiple Airlines
Deal found 1/2£85
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
Thu 26/306:15
BFS
-
DUB
1 stop7h 05m
Multiple Airlines
Fri 27/318:35
DUB
-
BFS
1 stop5h 10m
Multiple Airlines
Deal found 1/2£88
Fri 6/308:00
LDY
-
DUB
1 stop9h 25m
Multiple Airlines
Sat 7/306:50
DUB
-
LDY
1 stop5h 55m
Multiple Airlines
Deal found 1/2£88
Tue 17/316:30
BFS
-
DUB
1 stop7h 10m
Multiple Airlines
Tue 24/321:15
DUB
-
BFS
1 stop13h 05m
Multiple Airlines
Deal found 30/1£92
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
Sat 21/322:25
BFS
-
DUB
1 stop11h 00m
Multiple Airlines
Mon 23/311:30
DUB
-
BFS
1 stop7h 25m
Multiple Airlines
Deal found 2/2£97
Sun 1/322:05
BFS
-
DUB
1 stop10h 55m
Multiple Airlines
Sun 8/308:45
DUB
-
BFS
1 stop13h 55m
Multiple Airlines
Deal found 31/1£99
Sat 7/305:45
BFS
-
DUB
1 stop12h 35m
Multiple Airlines
Mon 9/305:45
DUB
-
BFS
1 stop13h 10m
Multiple Airlines
Deal found 30/1£100
Sat 7/309:25
BHD
-
DUB
1 stop7h 05m
Multiple Airlines
Mon 9/318:45
DUB
-
BHD
1 stop14h 10m
Multiple Airlines
Deal found 30/1£101

Find flight deals from Northern Ireland to Dublin

Keep the following information in mind while searching for Northern Ireland to Dublin flight deals. Data was last updated 2 February 2026.

Round-trip from

£85

One-way from

£42
28/2-7/3
  • 28/2-7/3
  • 2 total stops
  • 16h 15m total
  • Northern Ireland to Dublin
Search Deals
26/3
  • 26/3
  • 1 total stop
  • 9h 45m total
  • Northern Ireland to Dublin
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Northern Ireland to Dublin 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 2 February 2026.
Use the filters below to find and compare flights from Northern Ireland to Dublin that are best for you.

Fly from

Northern Ireland

Fly to

Dublin

Route

Depart

Return

Price

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Sat 28/2

05:45-13:40

1 stop7h 55m

Dublin

Sat 7/3

06:50-15:10

1 stop8h 20m

£85

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Sat 21/3

05:45-11:35

1 stop5h 50m

Dublin

Sun 22/3

06:30-12:00

1 stop5h 30m

£85

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

Thu 26/3

06:15-15:05

1 stop8h 50m

Dublin

Fri 27/3

18:35-23:45

1 stop5h 10m

£88

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Sun 1/3

05:45-09:50

1 stop4h 05m

Dublin

Sun 8/3

06:30-12:00

1 stop5h 30m

£88

LondonderryDublin

LDY - DUB

LDYDUB

Londonderry Eglinton

Fri 6/3

08:00-17:25

1 stop9h 25m

Dublin

Sat 7/3

06:50-12:45

1 stop5h 55m

£88

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Tue 17/3

16:30-23:40

1 stop7h 10m

Dublin

Tue 24/3

21:15-10:20

1 stop13h 05m

£92

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Thu 19/3

06:00-17:50

1 stop11h 50m

Dublin

Thu 26/3

08:30-22:50

1 stop14h 20m

£94

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Sat 21/3

22:25-09:25

1 stop11h 00m

Dublin

Mon 23/3

11:30-18:55

1 stop7h 25m

£97

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Sat 7/3

05:45-18:20

1 stop12h 35m

Dublin

Mon 9/3

05:45-18:55

1 stop13h 10m

£100

Flights are sorted by cheapest return flights first.

Deals found on 2/2

Showing 1-10 of 31 results
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Best time to book a flight from Northern Ireland to Dublin

Have a flexible travel schedule? Discover the best time to fly to Dublin 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 Dublin
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 Dublin. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Dublin from Northern Ireland?

    Most people fly into Dublin (DUB) if they book a flight to Dublin from Northern Ireland. Dublin is conveniently located just 5.7 mi from Dublin’s city center.

  • What are the most popular routes from Northern Ireland to Dublin?

    The most popular flight routes from Northern Ireland to Dublin are Belfast Intl - Dublin, Belfast City - Dublin and Londonderry Eglinton - Dublin.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Northern Ireland to Dublin 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

Travelling to a place near Dublin?

Book flights to Dublin if you plan to visit one of these locations
Athlone
Tullamore
Arklow
Cavan
Portmarnock
Dundalk
Wicklow
Enniscorthy
Bray
Mullingar
Drogheda
Kildare
Malahide
Maynooth
Carlingford
Swords
Naas

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Alternative routes for Northern Ireland to Dublin

See prices for flight routes from nearby airports that may be better suited for you.
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Manchester to Cork flights
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Gatwick to Milltown (Kerry) flights
Heathrow to Milltown (Kerry) flights
London City to Shannon flights
Gatwick to Knock flights
Edinburgh to Cork flights
Stansted to Milltown (Kerry) flights
Birmingham to Knock flights
Birmingham to Shannon flights
Newquay to Dublin flights
Aberdeen to Dublin flights
Glasgow Intl to Cork flights
Prestwick to Dublin flights
Birmingham to Cork flights
Manchester to Shannon flights
Inverness to Dublin flights

Fly with Cheapflights

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

When you search for this flight from Northern Ireland to Dublin, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Northern Ireland to Dublin?

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

Need flexible booking options for your flight to Dublin from Northern Ireland? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Dublin from Northern Ireland today and book when prices fit your budget.

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