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Cheap flights from Northern Ireland to Dublin from £45

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Northern Ireland to Dublin departing on 24/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags
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Find the cheapest flights from Northern Ireland to Dublin

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
12:45 - 23:55
BFS
-
DUB
11h 10m
1 stop
Multiple Airlines Logo
10:20 - 22:20
DUB
-
BFS
12h 00m
1 stop
£73Multiple Airlines
Thu, 23 Jul - Thu, 6 Aug
Multiple Airlines Logo
15:40 - 21:30
BFS
-
DUB
5h 50m
1 stop
Multiple Airlines Logo
06:30 - 15:15
DUB
-
BFS
8h 45m
1 stop
£74Multiple Airlines
Wed, 22 Jul - Wed, 29 Jul
Multiple Airlines Logo
12:45 - 23:55
BFS
-
DUB
11h 10m
1 stop
Multiple Airlines Logo
07:30 - 15:20
DUB
-
BFS
7h 50m
1 stop
£76Multiple Airlines
Thu, 30 Jul - Thu, 6 Aug
Multiple Airlines Logo
12:45 - 18:10
BFS
-
DUB
5h 25m
1 stop
Multiple Airlines Logo
21:20 - 07:05
DUB
-
BFS
9h 45m
1 stop
£77Multiple Airlines
Thu, 13 Aug - Tue, 18 Aug
Multiple Airlines Logo
07:30 - 21:30
BFS
-
DUB
14h 00m
1 stop
Multiple Airlines Logo
07:40 - 19:30
DUB
-
BFS
11h 50m
1 stop
£78Multiple Airlines
Wed, 29 Jul - Fri, 31 Jul
Multiple Airlines Logo
07:30 - 20:45
BFS
-
DUB
13h 15m
1 stop
Multiple Airlines Logo
15:45 - 21:15
DUB
-
BFS
5h 30m
1 stop
£80Multiple Airlines
Wed, 19 Aug - Sat, 22 Aug
Multiple Airlines Logo
21:40 - 09:10
BFS
-
DUB
11h 30m
1 stop
Multiple Airlines Logo
20:35 - 10:00
DUB
-
BFS
13h 25m
1 stop
£80Multiple Airlines
Sat, 8 Aug - Mon, 10 Aug
Multiple Airlines Logo
06:40 - 11:50
BFS
-
DUB
5h 10m
1 stop
Multiple Airlines Logo
20:35 - 10:00
DUB
-
BFS
13h 25m
1 stop
£81Multiple Airlines
Thu, 13 Aug - Mon, 17 Aug
Multiple Airlines Logo
07:30 - 20:45
BFS
-
DUB
13h 15m
1 stop
Multiple Airlines Logo
15:45 - 21:15
DUB
-
BFS
5h 30m
1 stop
£83Multiple Airlines
Wed, 19 Aug - Sat, 22 Aug
Multiple Airlines Logo
15:40 - 20:45
BFS
-
DUB
5h 05m
1 stop
Multiple Airlines Logo
07:30 - 15:20
DUB
-
BFS
7h 50m
1 stop
£84Multiple Airlines
Wed, 12 Aug - Thu, 13 Aug

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British Airways flights from Northern Ireland to Dublin

Our best British Airways deals on Northern Ireland to Dublin flight tickets
British Airways
23 Sept
BHD19:40Belfast City
14h 00m
1 stop
DUB09:40Dublin
26 Sept
DUB20:15Dublin
13h 50m
1 stop
BHD10:05Belfast City
£166
British Airways
19 Aug
BHD11:35Belfast City
7h 15m
1 stop
DUB18:50Dublin
26 Aug
DUB08:35Dublin
9h 00m
1 stop
BHD17:35Belfast City
£180
British Airways
13 Aug
BHD20:35Belfast City
11h 10m
1 stop
DUB07:45Dublin
17 Aug
DUB20:30Dublin
12h 20m
1 stop
BHD08:50Belfast City
£180

KLM flights from Northern Ireland to Dublin

Our best KLM deals on Northern Ireland to Dublin flight tickets
KLM
13 Aug
BHD17:30Belfast City
4h 55m
1 stop
DUB22:25Dublin
17 Aug
DUB08:55Dublin
8h 00m
1 stop
BHD16:55Belfast City
£352
KLM
8 Aug
BHD17:30Belfast City
4h 55m
1 stop
DUB22:25Dublin
10 Aug
DUB11:10Dublin
5h 45m
1 stop
BHD16:55Belfast City
£387
KLM
2 Jul
LDY18:10Londonderry Eglinton
16h 15m
2 stops
DUB10:25Dublin
8 Jul
DUB08:55Dublin
12h 50m
2 stops
LDY21:45Londonderry Eglinton
£1,251

momondo 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, momondo users made 279,928 searches. Data last updated 29 June 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

Thu 23/7

12:45-23:55

1 stop11h 10m

Dublin

Thu 6/8

10:20-22:20

1 stop12h 00m

£73

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Wed 22/7

15:40-21:30

1 stop5h 50m

Dublin

Wed 29/7

06:30-15:15

1 stop8h 45m

£74

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Thu 30/7

12:45-23:55

1 stop11h 10m

Dublin

Thu 6/8

07:30-15:20

1 stop7h 50m

£76

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Thu 13/8

12:45-18:10

1 stop5h 25m

Dublin

Tue 18/8

21:20-07:05

1 stop9h 45m

£76

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Wed 29/7

07:30-21:30

1 stop14h 00m

Dublin

Fri 31/7

07:40-19:30

1 stop11h 50m

£78

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Wed 19/8

07:30-20:45

1 stop13h 15m

Dublin

Sat 22/8

15:45-21:15

1 stop5h 30m

£80

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Sat 8/8

21:40-09:10

1 stop11h 30m

Dublin

Mon 10/8

20:35-10:00

1 stop13h 25m

£80

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Thu 13/8

06:40-11:50

1 stop5h 10m

Dublin

Mon 17/8

20:35-10:00

1 stop13h 25m

£81

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Wed 19/8

07:30-20:45

1 stop13h 15m

Dublin

Sat 22/8

15:45-21:15

1 stop5h 30m

£83
Fastest return journey

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Wed 12/8

15:40-20:45

1 stop5h 05m

Dublin

Thu 13/8

07:30-15:20

1 stop7h 50m

£84

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Dublin from

How to get the cheapest flight ticket from Northern Ireland to Dublin

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Northern Ireland to Dublin?

British Airways is the most popular carrier operating from Northern Ireland to Dublin

Cheap Northern Ireland to Dublin flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Northern Ireland to Dublin

Fastest flight time

3h 30m

Direct flights

None
The fastest flight from Northern Ireland to Dublin takes 3h 30m
There are no direct flights from Northern Ireland to Dublin. There are no popular flight routes from Northern Ireland to Dublin.
Search flight deals

Frequently asked questions about flying from Northern Ireland to Dublin

  • When did momondo last update prices for flights from Northern Ireland to Dublin Airport?

    Prices for flights from Northern Ireland to Dublin Airport were last updated today.

  • How old do you have to be to fly from Northern Ireland to Dublin Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Northern Ireland to Dublin Airport.

  • What documentation or ID do you need to fly to Dublin Airport?

    The travel and health documents you'll need for your trip to Dublin Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Dublin Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Travelling to a place near Dublin?

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

Why use momondo?

Why should I use momondo to find a flight deal from Northern Ireland to Dublin?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Northern Ireland to Dublin . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Northern Ireland to Dublin with flexible booking policies on momondo?

momondo does allow users to show only those flights to Dublin from Northern Ireland which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Northern Ireland to Dublin?

momondo provides multiple filters to help you find the best flight to Dublin from Northern Ireland. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Northern Ireland to Dublin right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Northern Ireland to Dublin flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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