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Cheap flights from Belfast to Ireland from £56

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Belfast to Ireland departing on 10/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
12:45 - 22:15BFS-ORK
9h 30m1 stop
Multiple Airlines Logo
22:40 - 06:45ORK-BFS
8h 05m1 stop
£90Multiple Airlines
Find Deal
Sat, 6 Dec - Sat, 13 Dec
Multiple Airlines Logo
21:35 - 08:30BFS-DUB
10h 55m1 stop
Multiple Airlines Logo
07:00 - 12:00DUB-BFS
5h 00m1 stop
£101Multiple Airlines
Find Deal
Tue, 2 Dec - Tue, 9 Dec
Multiple Airlines Logo
21:35 - 08:30BFS-DUB
10h 55m1 stop
Multiple Airlines Logo
07:00 - 12:00DUB-BFS
5h 00m1 stop
£101Multiple Airlines
Find Deal
Tue, 2 Dec - Tue, 9 Dec
Multiple Airlines Logo
20:05 - 07:15BFS-DUB
11h 10m1 stop
Multiple Airlines Logo
06:20 - 14:55DUB-BFS
8h 35m1 stop
£104Multiple Airlines
Find Deal
Fri, 30 Jan - Mon, 2 Feb
British Airways Logo
06:35 - 15:05BHD-DUB
8h 30m1 stop
British Airways Logo
10:45 - 16:50DUB-BHD
6h 05m1 stop
£171British Airways
Find Deal
Sat, 7 Mar - Mon, 9 Mar
British Airways Logo
06:35 - 15:05BHD-DUB
8h 30m1 stop
British Airways Logo
10:45 - 18:40DUB-BHD
7h 55m1 stop
£172British Airways
Find Deal
Sat, 7 Mar - Mon, 9 Mar
British Airways Logo
18:30 - 07:45BHD-DUB
13h 15m1 stop
British Airways Logo
10:30 - 15:40DUB-BHD
5h 10m1 stop
£222British Airways
Find Deal
Mon, 30 Mar - Tue, 31 Mar
KLM Logo
06:30 - 15:00BHD-ORK
8h 30m2 stops
KLM Logo
15:40 - 16:50ORK-BHD
25h 10m2 stops
£328KLM
Find Deal
Sat, 6 Dec - Sat, 13 Dec
KLM Logo
06:30 - 15:00BHD-ORK
8h 30m2 stops
KLM Logo
06:00 - 21:00ORK-BHD
15h 00m1 stop
£385KLM
Find Deal
Sat, 7 Mar - Mon, 9 Mar
KLM Logo
06:30 - 15:00BHD-ORK
8h 30m2 stops
KLM Logo
06:00 - 16:50ORK-BHD
10h 50m1 stop
£387KLM
Find Deal
Sat, 7 Mar - Mon, 9 Mar

British Airways flights from Belfast to Ireland

Our best British Airways deals on Belfast to Ireland flight tickets
British Airways
7 Mar
BHD06:35Belfast City
8h 30m
1 stop
DUB15:05Dublin
9 Mar
DUB10:45Dublin
6h 05m
1 stop
BHD16:50Belfast City
£171
Find similar
British Airways
7 Mar
BHD06:35Belfast City
8h 30m
1 stop
DUB15:05Dublin
9 Mar
DUB10:45Dublin
7h 55m
1 stop
BHD18:40Belfast City
£172
Find similar
British Airways
30 Mar
BHD18:30Belfast City
13h 15m
1 stop
DUB07:45Dublin
31 Mar
DUB10:30Dublin
5h 10m
1 stop
BHD15:40Belfast City
£222
Find similar

KLM flights from Belfast to Ireland

Our best KLM deals on Belfast to Ireland flight tickets
KLM
6 Dec
BHD06:30Belfast City
8h 30m
2 stops
ORK15:00Cork
13 Dec
ORK15:40Cork
25h 10m
2 stops
BHD16:50Belfast City
£328
Find similar
KLM
7 Mar
BHD06:30Belfast City
8h 30m
2 stops
ORK15:00Cork
9 Mar
ORK06:00Cork
15h 00m
1 stop
BHD21:00Belfast City
£385
Find similar
KLM
7 Mar
BHD06:30Belfast City
8h 30m
2 stops
ORK15:00Cork
9 Mar
ORK06:00Cork
10h 50m
1 stop
BHD16:50Belfast City
£387
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Belfast to 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 6 November 2025.
Use the filters below to find and compare flights from Belfast to Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BelfastCork

BFS - ORK

BFSORK

Belfast Intl

Sat 6/12

12:45-22:15

1 stop9h 30m

Cork

Sat 13/12

22:40-06:45

1 stop8h 05m

£90

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Tue 2/12

21:35-08:30

1 stop10h 55m

Dublin

Tue 9/12

07:00-12:00

1 stop5h 00m

£100

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Tue 2/12

21:35-08:30

1 stop10h 55m

Dublin

Tue 9/12

07:00-12:00

1 stop5h 00m

£101

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

£104

BelfastDublin

BHD - DUB

BHDDUB

Belfast City

Sat 7/3

06:35-15:05

1 stop8h 30m

Dublin

Mon 9/3

10:45-16:50

1 stop6h 05m

£171

BelfastDublin

BHD - DUB

BHDDUB

Belfast City

Sat 7/3

06:35-15:05

1 stop8h 30m

Dublin

Mon 9/3

10:45-18:40

1 stop7h 55m

£172

BelfastDublin

BHD - DUB

BHDDUB

Belfast City

Mon 30/3

18:30-07:45

1 stop13h 15m

Dublin

Tue 31/3

10:30-15:40

1 stop5h 10m

£222

BelfastCork

BHD - ORK

BHDORK

Belfast City

Sat 6/12

06:30-15:00

2 stops8h 30m

Cork

Sat 13/12

15:40-16:50

2 stops25h 10m

£328

BelfastCork

BHD - ORK

BHDORK

Belfast City

Sat 7/3

06:30-15:00

2 stops8h 30m

Cork

Mon 9/3

06:00-21:00

1 stop15h 00m

£385

BelfastCork

BHD - ORK

BHDORK

Belfast City

Sat 7/3

06:30-15:00

2 stops8h 30m

Cork

Mon 9/3

06:00-16:50

1 stop10h 50m

£387

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 Ireland from

How to get the cheapest flight ticket from Belfast to 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 time of day to depart on your flight to Ireland?

In the afternoon is the cheapest time of day to fly from Belfast to Ireland when you can find flight prices for as low as £141. Flying to Ireland in the afternoon is an ideal time because this is during off-peak travel hours. Flights to Ireland are more costly in the morning, with an average ticket price of £162. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

Cheap Belfast to Ireland flight deals and tips

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

Direct flights

None
There are no direct flights from Belfast to Ireland. There are no popular flight routes from Belfast to Ireland.
Search flight deals

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

    Prices for flights from Belfast to Ireland are updated daily.

  • How old do you have to be to fly from Belfast to 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 Belfast to Ireland.

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

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

Best airlines flying from Belfast to Ireland

Compare and see reviews for airlines that fly from Belfast to Ireland with momondo
Airline
Rating
Free Cancellation
Price
RyanairPriceFrom £40Free CancellationRating
6.8
5,186 reviews
Search Ryanair flights
Aer LingusPriceFrom £60Free CancellationRating
7.2
1,365 reviews
Search Aer Lingus flights

Why use momondo?

Why should I use momondo to find a flight deal from Belfast to 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 Belfast to Ireland for you.

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

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

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

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

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

Yes momondo offers price alerts on flights to Ireland from Belfast. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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Find better results for your trip to Ireland

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