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Cheap flights from Belfast to Ireland from €57

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 17/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Find the cheapest flights from Belfast to Ireland

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
07:00 - 10:40
BFS
-
DUB
3h 40m1 stop
Multiple Airlines Logo
19:45 - 07:25
DUB
-
BFS
11h 40m1 stop
€96Multiple Airlines
Thu, 29 Jan - Thu, 5 Feb
Multiple Airlines Logo
06:30 - 15:30
BFS
-
DUB
9h 00m1 stop
Multiple Airlines Logo
06:30 - 14:40
DUB
-
BFS
8h 10m1 stop
€100Multiple Airlines
Tue, 10 Feb - Sun, 15 Feb
Multiple Airlines Logo
08:05 - 17:25
BFS
-
DUB
9h 20m1 stop
Multiple Airlines Logo
11:55 - 21:40
DUB
-
BFS
9h 45m1 stop
€101Multiple Airlines
Fri, 9 Jan - Sun, 11 Jan
Multiple Airlines Logo
16:35 - 21:10
BFS
-
DUB
4h 35m1 stop
Multiple Airlines Logo
11:40 - 14:45
DUB
-
BFS
3h 05m1 stop
€101Multiple Airlines
Wed, 28 Jan - Wed, 4 Feb
Ryanair Logo
06:30 - 15:00
BFS
-
ORK
8h 30m1 stop
Ryanair Logo
15:25 - 10:20
ORK
-
BFS
18h 55m1 stop
€120Ryanair
Tue, 27 Jan - Tue, 3 Feb
Aer Lingus Logo
07:00 - 14:55
BHD
-
DUB
7h 55m1 stop
Aer Lingus Logo
06:30 - 09:45
DUB
-
BHD
3h 15m1 stop
€154Aer Lingus
Sat, 24 Jan - Mon, 26 Jan
British Airways Logo
10:40 - 17:00
BHD
-
DUB
6h 20m1 stop
British Airways Logo
20:40 - 07:40
DUB
-
BHD
11h 00m1 stop
€186British Airways
Thu, 22 Jan - Mon, 26 Jan
British Airways Logo
06:35 - 15:20
BHD
-
DUB
8h 45m1 stop
British Airways Logo
08:55 - 14:15
DUB
-
BHD
5h 20m1 stop
€194British Airways
Tue, 20 Jan - Sat, 24 Jan
KLM Logo
17:20 - 15:00
BHD
-
ORK
21h 40m2 stops
KLM Logo
15:40 - 16:50
ORK
-
BHD
25h 10m2 stops
€433KLM
Sat, 31 Jan - Sat, 7 Feb
Aer Lingus Logo
06:55 - 19:25
BHD
-
SNN
12h 30m3 stops
Aer Lingus Logo
07:50 - 19:55
SNN
-
BHD
12h 05m3 stops
€830Aer Lingus
Mon, 19 Jan - Mon, 26 Jan

Aer Lingus flights from Belfast to Ireland

Our best Aer Lingus deals on Belfast to Ireland flight tickets
Aer Lingus
24 Jan
BHD07:00Belfast City
7h 55m
1 stop
DUB14:55Dublin
26 Jan
DUB06:30Dublin
3h 15m
1 stop
BHD09:45Belfast City
€154
Find similar
Aer Lingus
19 Jan
BHD06:55Belfast City
12h 30m
3 stops
SNN19:25Shannon
26 Jan
SNN07:50Shannon
12h 05m
3 stops
BHD19:55Belfast City
€830
Find similar

British Airways flights from Belfast to Ireland

Our best British Airways deals on Belfast to Ireland flight tickets
British Airways
22 Jan
BHD10:40Belfast City
6h 20m
1 stop
DUB17:00Dublin
26 Jan
DUB20:40Dublin
11h 00m
1 stop
BHD07:40Belfast City
€186
Find similar
British Airways
20 Jan
BHD06:35Belfast City
8h 45m
1 stop
DUB15:20Dublin
24 Jan
DUB08:55Dublin
5h 20m
1 stop
BHD14:15Belfast City
€194
Find similar
British Airways
15 Jan
BHD17:45Belfast City
14h 10m
1 stop
DUB07:55Dublin
17 Jan
DUB17:55Dublin
15h 15m
1 stop
BHD09:10Belfast City
€205
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 13,528 searches. Data last updated 15 December 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

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Thu 29/1

07:00-10:40

1 stop3h 40m

Dublin

Thu 5/2

19:45-07:25

1 stop11h 40m

€96

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Tue 10/2

06:30-15:30

1 stop9h 00m

Dublin

Sun 15/2

06:30-14:40

1 stop8h 10m

€100

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Fri 9/1

08:05-17:25

1 stop9h 20m

Dublin

Sun 11/1

11:55-21:40

1 stop9h 45m

€101

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Wed 28/1

16:35-21:10

1 stop4h 35m

Dublin

Wed 4/2

11:40-14:45

1 stop3h 05m

€101

BelfastCork

BFS - ORK

BFSORK

Belfast Intl

Tue 27/1

06:30-15:00

1 stop8h 30m

Cork

Tue 3/2

15:25-10:20

1 stop18h 55m

€120

BelfastDublin

BHD - DUB

BHDDUB

Belfast City

Sat 24/1

07:00-14:55

1 stop7h 55m

Dublin

Mon 26/1

06:30-09:45

1 stop3h 15m

€154

BelfastDublin

BHD - DUB

BHDDUB

Belfast City

Thu 22/1

10:40-17:00

1 stop6h 20m

Dublin

Mon 26/1

20:40-07:40

1 stop11h 00m

€186

BelfastDublin

BHD - DUB

BHDDUB

Belfast City

Tue 20/1

06:35-15:20

1 stop8h 45m

Dublin

Sat 24/1

08:55-14:15

1 stop5h 20m

€194

BelfastCork

BHD - ORK

BHDORK

Belfast City

Sat 31/1

17:20-15:00

2 stops21h 40m

Cork

Sat 7/2

15:40-16:50

2 stops25h 10m

€433

BelfastShannon

BHD - SNN

BHDSNN

Belfast City

Mon 19/1

06:55-19:25

3 stops12h 30m

Shannon

Mon 26/1

07:50-19:55

3 stops12h 05m

€830

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 airline that flies from Belfast to Ireland?

Ryanair and British Airways are the most popular carriers operating from Belfast to Ireland

Cheap Belfast to Ireland flight deals and tips

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

Fastest flight time

4h 30m

Direct flights

None
The fastest flight from Belfast to Ireland takes 4h 30m
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 were last updated today.

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

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

    The travel and health documents required for your trip to 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 Ireland. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

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

It is quick and easy to find Belfast to Ireland flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Ireland that suits you.

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

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

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Ireland from Belfast.

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

If you are not ready to book a flight from Belfast to Ireland now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Ireland and let you know when they change.

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Find better results for your trip to Ireland

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