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Cheap flights from Belfast to Ireland from €48

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 15/4. 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
19:45 - 23:25
BFS
-
DUB
3h 40m
1 stop
Multiple Airlines Logo
23:10 - 08:15
DUB
-
BFS
9h 05m
1 stop
€88Multiple Airlines
Wed, 8 Apr - Sun, 12 Apr
Multiple Airlines Logo
07:10 - 21:10
BFS
-
SNN
14h 00m
1 stop
Multiple Airlines Logo
06:40 - 16:30
SNN
-
BFS
9h 50m
1 stop
€88Multiple Airlines
Sun, 5 Apr - Sat, 11 Apr
Multiple Airlines Logo
12:45 - 23:25
BFS
-
DUB
10h 40m
1 stop
Multiple Airlines Logo
06:15 - 19:15
DUB
-
BFS
13h 00m
1 stop
€89Multiple Airlines
Thu, 2 Apr - Thu, 9 Apr
Multiple Airlines Logo
05:45 - 17:55
BFS
-
DUB
12h 10m
1 stop
Multiple Airlines Logo
13:30 - 21:55
DUB
-
BFS
8h 25m
1 stop
€90Multiple Airlines
Sat, 21 Mar - Mon, 23 Mar
Multiple Airlines Logo
18:00 - 22:45
BFS
-
ORK
4h 45m
1 stop
Multiple Airlines Logo
05:45 - 10:20
ORK
-
BFS
4h 35m
1 stop
€90Multiple Airlines
Fri, 20 Mar - Wed, 25 Mar
Multiple Airlines Logo
23:10 - 09:20
BFS
-
DUB
10h 10m
1 stop
Multiple Airlines Logo
14:10 - 21:55
DUB
-
BFS
7h 45m
1 stop
€91Multiple Airlines
Sat, 28 Mar - Mon, 30 Mar
Multiple Airlines Logo
15:40 - 23:55
BFS
-
ORK
8h 15m
1 stop
Multiple Airlines Logo
17:15 - 23:20
ORK
-
BFS
6h 05m
1 stop
€92Multiple Airlines
Wed, 8 Apr - Wed, 22 Apr
Multiple Airlines Logo
15:40 - 23:55
BFS
-
ORK
8h 15m
1 stop
Multiple Airlines Logo
14:35 - 23:20
ORK
-
BFS
8h 45m
1 stop
€93Multiple Airlines
Wed, 15 Apr - Sat, 18 Apr
British Airways Logo
06:30 - 20:35
BHD
-
SNN
14h 05m
1 stop
British Airways Logo
21:15 - 08:50
SNN
-
BHD
11h 35m
1 stop
€402British Airways
Thu, 9 Apr - Wed, 15 Apr
British Airways Logo
18:00 - 23:25
BHD
-
ORK
5h 25m
1 stop
British Airways Logo
17:35 - 08:25
ORK
-
BHD
14h 50m
1 stop
€403British Airways
Sat, 14 Mar - Fri, 20 Mar

British Airways flights from Belfast to Ireland

Our best British Airways deals on Belfast to Ireland flight tickets
British Airways
21 Apr
BHD19:30Belfast City
12h 10m
1 stop
DUB07:40Dublin
22 Apr
DUB20:30Dublin
12h 20m
1 stop
BHD08:50Belfast City
€219
British Airways
21 Apr
BHD09:40Belfast City
9h 55m
1 stop
DUB19:35Dublin
22 Apr
DUB08:35Dublin
6h 45m
1 stop
BHD15:20Belfast City
€220
British Airways
21 Apr
BHD09:40Belfast City
9h 55m
1 stop
DUB19:35Dublin
22 Apr
DUB08:35Dublin
6h 45m
1 stop
BHD15:20Belfast City
€221

KLM flights from Belfast to Ireland

Our best KLM deals on Belfast to Ireland flight tickets
KLM
28 Mar
BHD17:20Belfast City
14h 00m
1 stop
DUB07:20Dublin
30 Mar
DUB11:10Dublin
5h 45m
1 stop
BHD16:55Belfast City
€416
KLM
14 Mar
BHD17:20Belfast City
6h 05m
1 stop
ORK23:25Cork
20 Mar
ORK15:25Cork
25h 25m
2 stops
BHD16:50Belfast City
€470
KLM
14 Mar
BHD06:30Belfast City
8h 30m
2 stops
ORK15:00Cork
20 Mar
ORK06:00Cork
10h 40m
1 stop
BHD16:40Belfast City
€607

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 20 February 2026.
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

Wed 8/4

19:45-23:25

1 stop3h 40m

Dublin

Sun 12/4

23:10-08:15

1 stop9h 05m

€88

BelfastShannon

BFS - SNN

BFSSNN

Belfast Intl

Sun 5/4

07:10-21:10

1 stop14h 00m

Shannon

Sat 11/4

06:40-16:30

1 stop9h 50m

€88

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Thu 2/4

12:45-23:25

1 stop10h 40m

Dublin

Thu 9/4

06:15-19:15

1 stop13h 00m

€89

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Sat 21/3

05:45-17:55

1 stop12h 10m

Dublin

Mon 23/3

13:30-21:55

1 stop8h 25m

€90

BelfastCork

BFS - ORK

BFSORK

Belfast Intl

Fri 20/3

18:00-22:45

1 stop4h 45m

Cork

Wed 25/3

05:45-10:20

1 stop4h 35m

€90

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Sat 28/3

23:10-09:20

1 stop10h 10m

Dublin

Mon 30/3

14:10-21:55

1 stop7h 45m

€91

BelfastCork

BFS - ORK

BFSORK

Belfast Intl

Wed 8/4

15:40-23:55

1 stop8h 15m

Cork

Wed 22/4

17:15-23:20

1 stop6h 05m

€92

BelfastCork

BFS - ORK

BFSORK

Belfast Intl

Wed 15/4

15:40-23:55

1 stop8h 15m

Cork

Sat 18/4

14:35-23:20

1 stop8h 45m

€93

BelfastShannon

BHD - SNN

BHDSNN

Belfast City

Thu 9/4

06:30-20:35

1 stop14h 05m

Shannon

Wed 15/4

21:15-08:50

1 stop11h 35m

€402

BelfastCork

BHD - ORK

BHDORK

Belfast City

Sat 14/3

18:00-23:25

1 stop5h 25m

Cork

Fri 20/3

17:35-08:25

1 stop14h 50m

€403

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, Aer Lingus, 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

3h 55m

Direct flights

None
The fastest flight from Belfast to Ireland takes 3h 55m
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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