Cheap flights from Ireland to Northern Ireland from £53

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ireland to Northern Ireland departing on 20/10. 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
0 bags
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Find the cheapest flights from Ireland to Northern Ireland

Recent return flight deals from Ireland to Northern Ireland

 Logo
07:40 - 13:10DUB-BFS
5h 30m1 stop
 Logo
15:55 - 22:05BFS-DUB
6h 10m1 stop
Tue, 14 Oct - Thu, 16 Oct
 Logo
07:40 - 13:10DUB-BFS
5h 30m1 stop
 Logo
15:55 - 22:05BFS-DUB
6h 10m1 stop
Tue, 14 Oct - Thu, 16 Oct
Ryanair Logo
20:55 - 10:00ORK-BFS
13h 05m1 stop
Ryanair Logo
06:00 - 20:30BFS-ORK
14h 30m1 stop
£108Ryanair
Find Deal
Thu, 9 Oct - Thu, 16 Oct
Ryanair Logo
20:55 - 10:00ORK-BFS
13h 05m1 stop
Ryanair Logo
06:00 - 20:30BFS-ORK
14h 30m1 stop
£122Ryanair
Find Deal
Thu, 9 Oct - Thu, 16 Oct
Aer Lingus Logo
06:30 - 16:25DUB-BHD
9h 55m1 stop
Aer Lingus Logo
16:55 - 21:15BHD-DUB
4h 20m1 stop
£149Aer Lingus
Find Deal
Sun, 21 Sep - Sun, 28 Sep
Aer Lingus Logo
06:30 - 18:15DUB-BHD
11h 45m1 stop
Aer Lingus Logo
15:15 - 22:30BHD-DUB
7h 15m1 stop
£162Aer Lingus
Find Deal
Sat, 27 Sep - Sun, 5 Oct
KLM Logo
11:10 - 21:15DUB-BHD
10h 05m1 stop
KLM Logo
06:30 - 12:35BHD-DUB
6h 05m1 stop
£184KLM
Find Deal
Sat, 27 Sep - Mon, 6 Oct
KLM Logo
11:10 - 16:55DUB-BHD
5h 45m1 stop
KLM Logo
06:30 - 20:15BHD-DUB
13h 45m1 stop
£185KLM
Find Deal
Sat, 27 Sep - Sun, 5 Oct
British Airways Logo
20:10 - 10:10DUB-BHD
14h 00m1 stop
British Airways Logo
06:50 - 16:20BHD-DUB
9h 30m1 stop
£198British Airways
Find Deal
Sat, 27 Sep - Sun, 5 Oct
British Airways Logo
20:10 - 10:10DUB-BHD
14h 00m1 stop
British Airways Logo
19:30 - 07:45BHD-DUB
12h 15m1 stop
£201British Airways
Find Deal
Sat, 27 Sep - Mon, 6 Oct

Ryanair flights from Ireland to Northern Ireland

Our best Ryanair deals on Ireland to Northern Ireland flight tickets
Ryanair
9 Oct
ORK20:55Cork
13h 05m
1 stop
BFS10:00Belfast Intl
16 Oct
BFS06:00Belfast Intl
14h 30m
1 stop
ORK20:30Cork
Ryanair
9 Oct
ORK20:55Cork
13h 05m
1 stop
BFS10:00Belfast Intl
16 Oct
BFS06:00Belfast Intl
14h 30m
1 stop
ORK20:30Cork

British Airways flights from Ireland to Northern Ireland

Our best British Airways deals on Ireland to Northern Ireland flight tickets
British Airways
27 Sept
DUB20:10Dublin
14h 00m
1 stop
BHD10:10Belfast City
5 Oct
BHD06:50Belfast City
9h 30m
1 stop
DUB16:20Dublin
British Airways
27 Sept
DUB20:10Dublin
14h 00m
1 stop
BHD10:10Belfast City
6 Oct
BHD19:30Belfast City
12h 15m
1 stop
DUB07:45Dublin
British Airways
27 Sept
DUB20:10Dublin
14h 00m
1 stop
BHD10:10Belfast City
6 Oct
BHD19:30Belfast City
12h 15m
1 stop
DUB07:45Dublin

momondo Fare Finder

 
Customise your flight search to find flights from Ireland to Northern Ireland 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 26 August 2025.
Use the filters below to find and compare flights from Ireland to Northern Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Tue 14/10

07:40-13:10

1 stop5h 30m

Belfast Intl

Thu 16/10

15:55-22:05

1 stop6h 10m

£96

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Tue 14/10

07:40-13:10

1 stop5h 30m

Belfast Intl

Thu 16/10

15:55-22:05

1 stop6h 10m

£98

CorkBelfast

ORK - BFS

ORKBFS

Cork

Thu 9/10

20:55-10:00

1 stop13h 05m

Belfast Intl

Thu 16/10

06:00-20:30

1 stop14h 30m

£108

CorkBelfast

ORK - BFS

ORKBFS

Cork

Thu 9/10

20:55-10:00

1 stop13h 05m

Belfast Intl

Thu 16/10

06:00-20:30

1 stop14h 30m

£122

DublinBelfast

DUB - BHD

DUBBHD

Dublin

Sun 21/9

06:30-16:25

1 stop9h 55m

Belfast City

Sun 28/9

16:55-21:15

1 stop4h 20m

£149

DublinBelfast

DUB - BHD

DUBBHD

Dublin

Sat 27/9

06:30-18:15

1 stop11h 45m

Belfast City

Sun 5/10

15:15-22:30

1 stop7h 15m

£162

DublinBelfast

DUB - BHD

DUBBHD

Dublin

Sat 27/9

11:10-21:15

1 stop10h 05m

Belfast City

Mon 6/10

06:30-12:35

1 stop6h 05m

£184

DublinBelfast

DUB - BHD

DUBBHD

Dublin

Sat 27/9

11:10-16:55

1 stop5h 45m

Belfast City

Sun 5/10

06:30-20:15

1 stop13h 45m

£185

DublinBelfast

DUB - BHD

DUBBHD

Dublin

Sat 27/9

20:10-10:10

1 stop14h 00m

Belfast City

Sun 5/10

06:50-16:20

1 stop9h 30m

£198

DublinBelfast

DUB - BHD

DUBBHD

Dublin

Sat 27/9

20:10-10:10

1 stop14h 00m

Belfast City

Mon 6/10

19:30-07:45

1 stop12h 15m

£201

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 Northern Ireland from

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

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 Ireland to Northern Ireland?

Ryanair, Aer Lingus, and British Airways are the most popular carriers operating from Ireland to Northern Ireland

Cheap Ireland to Northern Ireland flight deals and tips

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

Direct flights

None
There are no direct flights from Ireland to Northern Ireland. There are no popular flight routes from Ireland to Northern Ireland.
  • When did momondo last update prices for flights from Ireland to Northern Ireland?

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ireland to Northern Ireland.

  • What documentation or ID do you need to fly to Northern Ireland?

    The travel and health documents you'll need for your trip to Northern Ireland 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 Northern Ireland. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ireland to Northern Ireland. momondo saves you time and could save you money on your trip.

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

Flights from Ireland to Northern Ireland with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo helps you find the best flight between Ireland and Northern Ireland by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Of course. momondo tracks the price of Ireland to Northern Ireland 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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1 adult
Sun 31/8
Sun 7/9

Find better results for your trip to Northern Ireland

Popular Cities in Northern Ireland

Popular flights according to clicks in the last 7 days on momondo