Find flights
When to book
FAQs

Cheap flights from Northern Ireland to Dublin from £43

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 19/8. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — DUB
21 Aug — 28 Aug1
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 22 July 2026.

Tue 18/807:35
BFS
-
DUB
1 stop6h 30m
Multiple Airlines
Tue 25/821:20
DUB
-
BFS
1 stop9h 45m
Multiple Airlines
Deal found 21/7£72
Wed 19/815:40
BFS
-
DUB
1 stop5h 50m
Multiple Airlines
Wed 26/806:30
DUB
-
BFS
1 stop8h 45m
Multiple Airlines
Deal found 19/7£74
Tue 8/907:35
BFS
-
DUB
1 stop8h 50m
Multiple Airlines
Wed 16/906:30
DUB
-
BFS
1 stop8h 45m
Multiple Airlines
Deal found 22/7£75
Mon 24/808:40
BFS
-
DUB
1 stop6h 15m
Multiple Airlines
Thu 27/815:45
DUB
-
BFS
1 stop6h 35m
Multiple Airlines
Deal found 20/7£77
Thu 3/912:45
BFS
-
DUB
1 stop5h 25m
Multiple Airlines
Mon 7/922:05
DUB
-
BFS
1 stop14h 10m
Multiple Airlines
Deal found 20/7£78
Sat 15/821:40
BFS
-
DUB
1 stop11h 30m
Multiple Airlines
Sat 22/812:15
DUB
-
BFS
1 stop9h 00m
Multiple Airlines
Deal found 18/7£79
Thu 13/812:45
BFS
-
DUB
1 stop11h 10m
Multiple Airlines
Mon 17/819:55
DUB
-
BFS
1 stop12h 10m
Multiple Airlines
Deal found 22/7£80
Fri 4/913:10
LDY
-
DUB
1 stop10h 49m
Multiple Airlines
Sun 6/906:45
DUB
-
LDY
1 stop10h 15m
Multiple Airlines
Deal found 21/7£80
Thu 6/812:45
BFS
-
DUB
1 stop11h 10m
Multiple Airlines
Mon 10/819:55
DUB
-
BFS
1 stop12h 10m
Multiple Airlines
Deal found 20/7£81
Fri 4/913:10
LDY
-
DUB
1 stop8h 00m
Multiple Airlines
Mon 7/906:20
DUB
-
LDY
1 stop8h 10m
Multiple Airlines
Deal found 21/7£81
Sun 16/807:10
BFS
-
DUB
1 stop3h 20m
Multiple Airlines
Tue 25/821:20
DUB
-
BFS
1 stop9h 45m
Multiple Airlines
Deal found 19/7£84
Sat 22/821:40
BFS
-
DUB
1 stop11h 30m
Multiple Airlines
Sun 23/823:10
DUB
-
BFS
1 stop9h 05m
Multiple Airlines
Deal found 19/7£84

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 22 July 2026.

Round-trip from

£72

One-way from

£43
18/8-25/8
  • 18/8-25/8
  • 2 total stops
  • 16h 15m total
  • Northern Ireland to Dublin
Search Deals
19/8
  • 19/8
  • 1 total stop
  • 5h 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 22 July 2026.
Use the filters below to find and compare flights from Northern Ireland to Dublin that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Tue 18/8

07:35-14:05

1 stop6h 30m

Dublin

Tue 25/8

21:20-07:05

1 stop9h 45m

£72

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Wed 19/8

15:40-21:30

1 stop5h 50m

Dublin

Wed 26/8

06:30-15:15

1 stop8h 45m

£74

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Tue 8/9

07:35-16:25

1 stop8h 50m

Dublin

Wed 16/9

06:30-15:15

1 stop8h 45m

£75

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Mon 24/8

08:40-14:55

1 stop6h 15m

Dublin

Thu 27/8

15:45-22:20

1 stop6h 35m

£77

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Thu 3/9

12:45-18:10

1 stop5h 25m

Dublin

Mon 7/9

22:05-12:15

1 stop14h 10m

£78

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Tue 8/9

07:35-16:25

1 stop8h 50m

Dublin

Thu 10/9

13:00-22:20

1 stop9h 20m

£79

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Mon 17/8

08:40-20:10

1 stop11h 30m

Dublin

Mon 24/8

14:40-21:30

1 stop6h 50m

£80

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Thu 13/8

12:45-23:55

1 stop11h 10m

Dublin

Mon 17/8

19:55-08:05

1 stop12h 10m

£80

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Thu 6/8

12:45-23:55

1 stop11h 10m

Dublin

Mon 10/8

19:55-08:05

1 stop12h 10m

£81

LondonderryDublin

LDY - DUB

LDYDUB

Londonderry Eglinton

Fri 21/8

13:10-23:59

1 stop10h 49m

Dublin

Sun 23/8

06:45-17:00

1 stop10h 15m

£94

Flights are sorted by cheapest return flights first.

Deals found on 21/7

Showing 1-10 of 41 resultsSorted by cheapest first
1
2
3
...
5

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
Arklow
Tullamore
Cavan
Portmarnock
Athlone
Dundalk
Wicklow
Bray
Enniscorthy
Malahide
Maynooth
Drogheda
Kildare
Swords

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.