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Cheap flights from Northern Ireland to Dublin from £51

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 13/2. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — DUB
7 Dec — 14 Dec1
1 adult
1 adult, Economy, 0 bags

Find 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 7 November 2025.

Thu 4/1221:00BFS - DUB
1 stop10h 05mMultiple Airlines
Thu 11/1221:50DUB - BFS
1 stop9h 35mMultiple Airlines
Deal found 5/11£109
Sat 6/1223:10BFS - DUB
1 stop8h 40mMultiple Airlines
Mon 8/1219:05DUB - BFS
1 stop12h 50mMultiple Airlines
Deal found 7/11£114
Sat 13/1223:10BFS - DUB
1 stop8h 40mMultiple Airlines
Mon 15/1217:00DUB - BFS
1 stop4h 55mMultiple Airlines
Deal found 6/11£115
Sat 6/1212:40BHD - DUB
1 stop8h 30mMultiple Airlines
Mon 8/1219:30DUB - BHD
1 stop13h 00mMultiple Airlines
Deal found 5/11£119
Sat 20/1220:00BFS - DUB
1 stop4h 50mMultiple Airlines
Sat 27/1220:50DUB - BFS
1 stop9h 55mMultiple Airlines
Deal found 5/11£121
Sat 6/1213:20LDY - DUB
1 stop9h 55mMultiple Airlines
Fri 12/1206:40DUB - LDY
1 stop8h 10mMultiple Airlines
Deal found 6/11£122
Wed 3/1218:25BFS - DUB
1 stop4h 40mMultiple Airlines
Sun 7/1221:15DUB - BFS
1 stop9h 35mMultiple Airlines
Deal found 6/11£123
Thu 4/1215:20BHD - DUB
1 stop5h 45mMultiple Airlines
Thu 11/1206:15DUB - BHD
1 stop9h 50mMultiple Airlines
Deal found 5/11£124
Fri 5/1215:25LDY - DUB
1 stop7h 40mMultiple Airlines
Sun 7/1220:50DUB - LDY
1 stop10h 15mMultiple Airlines
Deal found 6/11£132
Mon 22/1207:00BFS - DUB
1 stop10h 05mMultiple Airlines
Mon 29/1222:10DUB - BFS
1 stop9h 45mMultiple Airlines
Deal found 7/11£134
Sat 6/1207:00BHD - DUB
1 stop11h 25mAer Lingus
Mon 8/1208:30DUB - BHD
1 stop8h 50mAer Lingus
Deal found 7/11£141
Sat 6/1206:35BHD - DUB
1 stop10h 25mBritish Airways
Mon 8/1210:45DUB - BHD
1 stop7h 55mBritish Airways
Deal found 7/11£190

Cheap 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 7 November 2025.

Round-trip from

£103

One-way from

£51
30/1-2/2
  • 30/1-2/2
  • 2 total stops
  • 19h 45m total
  • Northern Ireland to Dublin
Search Deals
13/2
  • 13/2
  • 1 total stop
  • 9h 50m 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 7 November 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

Fri 30/1

20:05-07:15

1 stop11h 10m

Dublin

Mon 2/2

06:20-14:55

1 stop8h 35m

£103

BelfastDublin

BHD - DUB

BHDDUB

Belfast City

Fri 30/1

17:55-23:59

1 stop6h 04m

Dublin

Mon 2/2

06:30-16:25

1 stop9h 55m

£108

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Thu 4/12

21:00-07:05

1 stop10h 05m

Dublin

Thu 11/12

21:50-07:25

1 stop9h 35m

£109

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Sat 6/12

23:10-07:50

1 stop8h 40m

Dublin

Mon 8/12

19:05-07:55

1 stop12h 50m

£114

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Sat 13/12

23:10-07:50

1 stop8h 40m

Dublin

Mon 15/12

17:00-21:55

1 stop4h 55m

£115

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Sat 20/12

20:00-00:50

1 stop4h 50m

Dublin

Sat 27/12

19:25-06:45

1 stop11h 20m

£115

BelfastDublin

BHD - DUB

BHDDUB

Belfast City

Sat 6/12

12:40-21:10

1 stop8h 30m

Dublin

Mon 8/12

19:30-08:30

1 stop13h 00m

£119

LondonderryDublin

LDY - DUB

LDYDUB

Londonderry Eglinton

Sat 6/12

13:20-23:15

1 stop9h 55m

Dublin

Fri 12/12

06:40-14:50

1 stop8h 10m

£122

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Wed 3/12

18:25-23:05

1 stop4h 40m

Dublin

Sun 7/12

21:15-06:50

1 stop9h 35m

£123

BelfastDublin

BHD - DUB

BHDDUB

Belfast City

Thu 4/12

15:20-21:05

1 stop5h 45m

Dublin

Thu 11/12

06:15-16:05

1 stop9h 50m

£124

Flights are sorted by cheapest return flights first.

Deals found on 6/11

Showing 1-10 of 25 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?

    Aer Lingus can get you from Northern Ireland to Dublin in just under 11h 25m. Your travel time can differ by up to . Northern Ireland and Dublin are separated by a distance of 84 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
Tullamore
Cavan
Drogheda
Malahide
Portmarnock
Dundalk
Enniscorthy
Mullingar
Bray
Arklow
Kildare
Carlingford
Maynooth
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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How does Cheapflights help users find flights 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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