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Cheap flights from Belfast to Ireland from €46

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 20/8. 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
1 adult, Economy, 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
15:40 - 23:35
BFS
-
SNN
7h 55m
1 stop
Multiple Airlines Logo
08:50 - 15:15
SNN
-
BFS
6h 25m
1 stop
€83Multiple Airlines
Wed, 12 Aug - Wed, 19 Aug
Multiple Airlines Logo
15:40 - 21:30
BFS
-
DUB
5h 50m
1 stop
Multiple Airlines Logo
06:30 - 15:15
DUB
-
BFS
8h 45m
1 stop
€84Multiple Airlines
Wed, 19 Aug - Wed, 26 Aug
Multiple Airlines Logo
07:35 - 21:45
BFS
-
ORK
14h 10m
1 stop
Multiple Airlines Logo
22:25 - 07:05
ORK
-
BFS
8h 40m
1 stop
€86Multiple Airlines
Tue, 18 Aug - Tue, 25 Aug
Multiple Airlines Logo
07:35 - 21:45
BFS
-
ORK
14h 10m
1 stop
Multiple Airlines Logo
15:20 - 19:50
ORK
-
BFS
4h 30m
1 stop
€87Multiple Airlines
Tue, 11 Aug - Wed, 26 Aug
Multiple Airlines Logo
15:40 - 21:30
BFS
-
DUB
5h 50m
1 stop
Multiple Airlines Logo
06:30 - 15:15
DUB
-
BFS
8h 45m
1 stop
€87Multiple Airlines
Wed, 19 Aug - Wed, 26 Aug
Multiple Airlines Logo
06:40 - 11:50
BFS
-
DUB
5h 10m
1 stop
Multiple Airlines Logo
15:45 - 22:20
DUB
-
BFS
6h 35m
1 stop
€88Multiple Airlines
Thu, 20 Aug - Thu, 27 Aug
Multiple Airlines Logo
07:35 - 21:45
BFS
-
ORK
14h 10m
1 stop
Multiple Airlines Logo
22:25 - 07:05
ORK
-
BFS
8h 40m
1 stop
€88Multiple Airlines
Tue, 18 Aug - Tue, 25 Aug
Multiple Airlines Logo
15:40 - 21:30
BFS
-
DUB
5h 50m
1 stop
Multiple Airlines Logo
06:30 - 15:15
DUB
-
BFS
8h 45m
1 stop
€89Multiple Airlines
Wed, 5 Aug - Wed, 12 Aug
Multiple Airlines Logo
07:30 - 11:50
BFS
-
SNN
4h 20m
1 stop
Multiple Airlines Logo
08:50 - 15:15
SNN
-
BFS
6h 25m
1 stop
€89Multiple Airlines
Wed, 12 Aug - Wed, 19 Aug
Multiple Airlines Logo
07:35 - 21:45
BFS
-
ORK
14h 10m
1 stop
Multiple Airlines Logo
15:20 - 19:50
ORK
-
BFS
4h 30m
1 stop
€89Multiple Airlines
Tue, 11 Aug - Wed, 26 Aug

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Aer Lingus flights from Belfast to Ireland

Our best Aer Lingus deals on Belfast to Ireland flight tickets
Aer Lingus
21 Aug
BHD13:35Belfast City
6h 25m
1 stop
DUB20:00Dublin
24 Aug
DUB06:30Dublin
12h 05m
1 stop
BHD18:35Belfast City
€170
Aer Lingus
20 Aug
BHD15:35Belfast City
4h 25m
1 stop
DUB20:00Dublin
25 Aug
DUB06:30Dublin
6h 40m
1 stop
BHD13:10Belfast City
€175
Aer Lingus
20 Aug
BHD07:00Belfast City
5h 45m
1 stop
DUB12:45Dublin
23 Aug
DUB06:30Dublin
3h 15m
1 stop
BHD09:45Belfast City
€221

British Airways flights from Belfast to Ireland

Our best British Airways deals on Belfast to Ireland flight tickets
British Airways
19 Sept
BHD19:05Belfast City
12h 40m
1 stop
DUB07:45Dublin
23 Sept
DUB08:35Dublin
6h 45m
1 stop
BHD15:20Belfast City
€193
British Airways
19 Sept
BHD19:05Belfast City
12h 40m
1 stop
DUB07:45Dublin
23 Sept
DUB08:35Dublin
6h 45m
1 stop
BHD15:20Belfast City
€194
British Airways
17 Aug
BHD19:35Belfast City
12h 10m
1 stop
DUB07:45Dublin
29 Aug
DUB20:15Dublin
13h 50m
1 stop
BHD10:05Belfast City
€203

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 10 July 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

Cheapest return flight

BelfastShannon

BFS - SNN

BFSSNN

Belfast Intl

Wed 12/8

15:40-23:35

1 stop7h 55m

Shannon

Wed 19/8

08:50-15:15

1 stop6h 25m

€83

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Wed 19/8

15:40-21:30

1 stop5h 50m

Dublin

Wed 26/8

06:30-15:15

1 stop8h 45m

€84

BelfastCork

BFS - ORK

BFSORK

Belfast Intl

Tue 18/8

07:35-21:45

1 stop14h 10m

Cork

Tue 25/8

22:25-07:05

1 stop8h 40m

€86

BelfastCork

BFS - ORK

BFSORK

Belfast Intl

Tue 11/8

07:35-21:45

1 stop14h 10m

Cork

Wed 26/8

15:20-19:50

1 stop4h 30m

€87

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Wed 19/8

15:40-21:30

1 stop5h 50m

Dublin

Wed 26/8

06:30-15:15

1 stop8h 45m

€87

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Thu 20/8

06:40-11:50

1 stop5h 10m

Dublin

Thu 27/8

15:45-22:20

1 stop6h 35m

€88

BelfastCork

BFS - ORK

BFSORK

Belfast Intl

Tue 18/8

07:35-21:45

1 stop14h 10m

Cork

Tue 25/8

22:25-07:05

1 stop8h 40m

€88

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Wed 5/8

15:40-21:30

1 stop5h 50m

Dublin

Wed 12/8

06:30-15:15

1 stop8h 45m

€89
Fastest return journey

BelfastShannon

BFS - SNN

BFSSNN

Belfast Intl

Wed 12/8

07:30-11:50

1 stop4h 20m

Shannon

Wed 19/8

08:50-15:15

1 stop6h 25m

€89

BelfastCork

BFS - ORK

BFSORK

Belfast Intl

Tue 11/8

07:35-21:45

1 stop14h 10m

Cork

Wed 26/8

15:20-19:50

1 stop4h 30m

€89

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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2

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?

British Airways is the most popular carrier 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 50m

Direct flights

None
The fastest flight from Belfast to Ireland takes 3h 50m
There are no direct flights from Belfast to Ireland. There are no popular flight routes from Belfast to Ireland.
Search flight deals

Frequently asked questions about flying from Belfast to Ireland

  • 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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