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Cheap flights from Ireland to Northern Ireland 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 Ireland to Northern Ireland departing on 2/2. 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

Enter your travel dates to find the best prices.
Multiple Airlines Logo
15:00 - 20:25
DUB
-
BFS
5h 25m1 stop
Multiple Airlines Logo
07:50 - 11:05
BFS
-
DUB
3h 15m1 stop
€88Multiple Airlines
Fri, 23 Jan - Mon, 26 Jan
Multiple Airlines Logo
20:55 - 08:55
DUB
-
BFS
12h 00m1 stop
Multiple Airlines Logo
19:20 - 08:35
BFS
-
DUB
13h 15m1 stop
€89Multiple Airlines
Mon, 19 Jan - Mon, 26 Jan
Multiple Airlines Logo
15:00 - 20:25
DUB
-
BFS
5h 25m1 stop
Multiple Airlines Logo
07:50 - 11:05
BFS
-
DUB
3h 15m1 stop
€90Multiple Airlines
Fri, 23 Jan - Mon, 26 Jan
Multiple Airlines Logo
18:15 - 07:25
DUB
-
BFS
13h 10m1 stop
Multiple Airlines Logo
06:15 - 19:35
BFS
-
DUB
13h 20m1 stop
€90Multiple Airlines
Thu, 15 Jan - Thu, 22 Jan
Multiple Airlines Logo
13:00 - 18:50
DUB
-
BFS
5h 50m1 stop
Multiple Airlines Logo
15:45 - 20:05
BFS
-
DUB
4h 20m1 stop
€92Multiple Airlines
Wed, 14 Jan - Wed, 21 Jan
KLM Logo
06:00 - 16:50
ORK
-
BHD
10h 50m1 stop
KLM Logo
17:20 - 23:25
BHD
-
ORK
6h 05m1 stop
€276KLM
Sat, 17 Jan - Sat, 24 Jan
KLM Logo
06:00 - 16:50
ORK
-
BHD
10h 50m1 stop
KLM Logo
17:20 - 23:25
BHD
-
ORK
6h 05m1 stop
€277KLM
Sat, 17 Jan - Sat, 24 Jan
British Airways Logo
16:05 - 09:10
ORK
-
BHD
17h 05m1 stop
British Airways Logo
18:00 - 11:10
BHD
-
ORK
17h 10m1 stop
€435British Airways
Wed, 4 Feb - Sat, 7 Feb
British Airways Logo
17:35 - 10:30
ORK
-
BHD
16h 55m1 stop
British Airways Logo
06:30 - 23:25
BHD
-
ORK
16h 55m1 stop
€436British Airways
Fri, 30 Jan - Sun, 1 Feb
KLM Logo
15:40 - 16:50
ORK
-
BHD
25h 10m2 stops
KLM Logo
17:20 - 15:00
BHD
-
ORK
21h 40m2 stops
€438KLM
Sat, 17 Jan - Sat, 24 Jan

British Airways flights from Ireland to Northern Ireland

Our best British Airways deals on Ireland to Northern Ireland flight tickets
British Airways
2 Feb
DUB20:40Dublin
14h 00m
1 stop
BHD10:40Belfast City
11 Feb
BHD06:35Belfast City
10h 25m
1 stop
DUB17:00Dublin
€257
Find similar
British Airways
2 Feb
DUB20:40Dublin
14h 00m
1 stop
BHD10:40Belfast City
11 Feb
BHD06:35Belfast City
10h 25m
1 stop
DUB17:00Dublin
€258
Find similar
British Airways
8 Jan
DUB20:40Dublin
20h 00m
1 stop
BHD16:40Belfast City
11 Jan
BHD09:10Belfast City
9h 30m
1 stop
DUB18:40Dublin
€263
Find similar

KLM flights from Ireland to Northern Ireland

Our best KLM deals on Ireland to Northern Ireland flight tickets
KLM
2 Feb
DUB05:55Dublin
10h 55m
1 stop
BHD16:50Belfast City
11 Feb
BHD17:20Belfast City
4h 50m
1 stop
DUB22:10Dublin
€199
Find similar
KLM
17 Jan
ORK06:00Cork
10h 50m
1 stop
BHD16:50Belfast City
24 Jan
BHD17:20Belfast City
6h 05m
1 stop
ORK23:25Cork
€276
Find similar
KLM
17 Jan
ORK06:00Cork
10h 50m
1 stop
BHD16:50Belfast City
24 Jan
BHD17:20Belfast City
6h 05m
1 stop
ORK23:25Cork
€277
Find similar

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 13,528 searches. Data last updated 19 December 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

Fri 23/1

15:00-20:25

1 stop5h 25m

Belfast Intl

Mon 26/1

07:50-11:05

1 stop3h 15m

€88

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Mon 19/1

20:55-08:55

1 stop12h 00m

Belfast Intl

Mon 26/1

19:20-08:35

1 stop13h 15m

€89

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Fri 23/1

15:00-20:25

1 stop5h 25m

Belfast Intl

Mon 26/1

07:50-11:05

1 stop3h 15m

€90

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Thu 15/1

18:15-07:25

1 stop13h 10m

Belfast Intl

Thu 22/1

06:15-19:35

1 stop13h 20m

€90

DublinBelfast

DUB - BFS

DUBBFS

Dublin

Wed 14/1

13:00-18:50

1 stop5h 50m

Belfast Intl

Wed 21/1

15:45-20:05

1 stop4h 20m

€92

CorkBelfast

ORK - BHD

ORKBHD

Cork

Sat 17/1

06:00-16:50

1 stop10h 50m

Belfast City

Sat 24/1

17:20-23:25

1 stop6h 05m

€276

CorkBelfast

ORK - BHD

ORKBHD

Cork

Sat 17/1

06:00-16:50

1 stop10h 50m

Belfast City

Sat 24/1

17:20-23:25

1 stop6h 05m

€277

CorkBelfast

ORK - BHD

ORKBHD

Cork

Wed 4/2

16:05-09:10

1 stop17h 05m

Belfast City

Sat 7/2

18:00-11:10

1 stop17h 10m

€435

CorkBelfast

ORK - BHD

ORKBHD

Cork

Fri 30/1

17:35-10:30

1 stop16h 55m

Belfast City

Sun 1/2

06:30-23:25

1 stop16h 55m

€436

CorkBelfast

ORK - BHD

ORKBHD

Cork

Sat 17/1

15:40-16:50

2 stops25h 10m

Belfast City

Sat 24/1

17:20-15:00

2 stops21h 40m

€438

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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?

KLM and Aer Lingus 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

Fastest flight time

3h 10m

Direct flights

None
The fastest flight from Ireland to Northern Ireland takes 3h 10m
There are no direct flights from Ireland to Northern Ireland. There are no popular flight routes from Ireland to Northern Ireland.
Search flight deals

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

    Prices for flights from Ireland to Northern Ireland are refreshed on a daily basis.

  • How many operators does momondo search for flights from Ireland to Northern Ireland?

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ireland to Northern Ireland.

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

    The travel and health documents required for your trip to Northern Ireland can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Northern Ireland. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Ireland to Northern Ireland

Compare and see reviews for airlines that fly from Ireland to Northern Ireland with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom €259Free CancellationRating
6.7
7,589 reviews
Search British Airways flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Ireland to Northern Ireland for you.

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

All flight searches from Ireland to Northern Ireland on momondo can be filtered to show those which offer flexible booking policies.

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

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

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

Yes. momondo can track prices for Ireland to Northern Ireland flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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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
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