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Cheap flights from Northern Ireland to Dublin from £45

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 24/1. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — DUB
11 1月 — 18 1月1
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 12 12月 2025.

週五 12/1221:05BFS - DUB
1 stop10h 10mMultiple Airlines
週二 16/1205:45DUB - BFS
1 stop13h 15mMultiple Airlines
Deal found 12/12£194
週五 12/1218:55BHD - DUB
1 stop5h 10mMultiple Airlines
週二 16/1206:10DUB - BHD
1 stop6h 40mMultiple Airlines
Deal found 12/12£241

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 12 12月 2025.

Round-trip from

£84

One-way from

£45
15/1-19/1
  • 15/1-19/1
  • 2 total stops
  • 22h 50m total
  • Northern Ireland to Dublin
Search Deals
24/1
  • 24/1
  • 1 total stop
  • 3h 00m 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 12 12月 2025.
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

週四 15/1

21:00-07:50

1 stop10h 50m

Dublin

週一 19/1

20:55-08:55

1 stop12h 00m

£84

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

週三 7/1

15:45-23:05

1 stop7h 20m

Dublin

週三 14/1

13:00-18:50

1 stop5h 50m

£85

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

週六 24/1

20:30-08:05

1 stop11h 35m

Dublin

週六 31/1

13:30-22:45

1 stop9h 15m

£87

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

週三 21/1

18:25-07:50

1 stop13h 25m

Dublin

週四 22/1

21:30-07:25

1 stop9h 55m

£87

BelfastDublin

BHD - DUB

BHDDUB

Belfast City

週四 15/1

20:00-07:50

1 stop11h 50m

Dublin

週一 19/1

06:55-17:15

1 stop10h 20m

£89

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

週四 8/1

16:00-21:35

1 stop5h 35m

Dublin

週四 15/1

10:05-15:30

1 stop5h 25m

£93

BelfastDublin

BHD - DUB

BHDDUB

Belfast City

週四 8/1

20:00-07:05

1 stop11h 05m

Dublin

週四 15/1

07:20-19:20

1 stop12h 00m

£96

BelfastDublin

BHD - DUB

BHDDUB

Belfast City

週三 7/1

16:50-20:05

1 stop3h 15m

Dublin

週三 14/1

11:40-16:20

1 stop4h 40m

£97

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

週四 5/3

16:35-21:35

1 stop5h 00m

Dublin

週三 18/3

08:20-18:50

1 stop10h 30m

£100

BelfastDublin

BHD - DUB

BHDDUB

Belfast City

週四 5/3

11:00-23:30

1 stop12h 30m

Dublin

週三 18/3

06:20-17:15

1 stop10h 55m

£106

Flights are sorted by cheapest return flights first.

Deals found on 10/12

Showing 1-10 of 23 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.

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

    British Airways can get you from Northern Ireland to Dublin in just under 7h 35m. Your travel time can differ by up to . Northern Ireland and Dublin are separated by a distance of 117 mi.

  • 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
Wicklow
Cavan
Tullamore
Arklow
Drogheda
Malahide
Portmarnock
Dundalk
Enniscorthy
Mullingar
Bray
Kildare
Maynooth
Carlingford
Swords
Naas

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Alternative routes for Northern Ireland to Dublin

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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?

Cheapflights helps you find that perfect flight to Dublin from Northern Ireland by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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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