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Cheap flights from Belfast to Ireland from €43

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 3/8. 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
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 - 20:45
BFS
-
DUB
5h 05m
1 stop
Multiple Airlines Logo
20:30 - 08:05
DUB
-
BFS
11h 35m
1 stop
€85Multiple Airlines
Wed, 10 Jun - Tue, 30 Jun
Multiple Airlines Logo
15:40 - 23:55
BFS
-
ORK
8h 15m
1 stop
Multiple Airlines Logo
09:55 - 15:15
ORK
-
BFS
5h 20m
1 stop
€85Multiple Airlines
Wed, 3 Jun - Wed, 10 Jun
Multiple Airlines Logo
22:45 - 08:20
BFS
-
ORK
9h 35m
1 stop
Multiple Airlines Logo
09:55 - 15:15
ORK
-
BFS
5h 20m
1 stop
€86Multiple Airlines
Thu, 4 Jun - Wed, 10 Jun
Multiple Airlines Logo
07:30 - 12:30
BFS
-
DUB
5h 00m
1 stop
Multiple Airlines Logo
20:30 - 08:05
DUB
-
BFS
11h 35m
1 stop
€87Multiple Airlines
Wed, 10 Jun - Tue, 30 Jun
Multiple Airlines Logo
22:45 - 08:20
BFS
-
ORK
9h 35m
1 stop
Multiple Airlines Logo
17:25 - 22:20
ORK
-
BFS
4h 55m
1 stop
€87Multiple Airlines
Thu, 28 May - Thu, 4 Jun
Multiple Airlines Logo
22:45 - 08:20
BFS
-
ORK
9h 35m
1 stop
Multiple Airlines Logo
09:55 - 15:15
ORK
-
BFS
5h 20m
1 stop
€88Multiple Airlines
Thu, 4 Jun - Wed, 10 Jun
Multiple Airlines Logo
07:30 - 12:30
BFS
-
DUB
5h 00m
1 stop
Multiple Airlines Logo
20:30 - 08:05
DUB
-
BFS
11h 35m
1 stop
€89Multiple Airlines
Wed, 10 Jun - Tue, 30 Jun
Multiple Airlines Logo
12:45 - 16:55
BFS
-
ORK
4h 10m
1 stop
Multiple Airlines Logo
15:20 - 19:50
ORK
-
BFS
4h 30m
1 stop
€89Multiple Airlines
Thu, 4 Jun - Wed, 10 Jun
Multiple Airlines Logo
08:40 - 14:55
BFS
-
DUB
6h 15m
1 stop
Multiple Airlines Logo
20:35 - 10:00
DUB
-
BFS
13h 25m
1 stop
€89Multiple Airlines
Mon, 8 Jun - Mon, 15 Jun
British Airways Logo
06:30 - 16:10
BHD
-
SNN
9h 40m
1 stop
British Airways Logo
21:15 - 08:50
SNN
-
BHD
11h 35m
1 stop
€398British Airways
Tue, 16 Jun - Wed, 17 Jun

British Airways flights from Belfast to Ireland

Our best British Airways deals on Belfast to Ireland flight tickets
British Airways
4 Sept
BHD06:30Belfast City
12h 50m
1 stop
DUB19:20Dublin
7 Sept
DUB20:30Dublin
12h 20m
1 stop
BHD08:50Belfast City
€223
British Airways
30 May
BHD07:05Belfast City
12h 20m
1 stop
DUB19:25Dublin
3 Jun
DUB20:30Dublin
17h 05m
1 stop
BHD13:35Belfast City
€237
British Airways
30 May
BHD07:05Belfast City
10h 45m
1 stop
DUB17:50Dublin
3 Jun
DUB20:30Dublin
12h 20m
1 stop
BHD08:50Belfast City
€242

Aer Lingus flights from Belfast to Ireland

Our best Aer Lingus deals on Belfast to Ireland flight tickets
Aer Lingus
4 Jun
BHD17:05Belfast City
4h 25m
1 stop
DUB21:30Dublin
7 Jun
DUB06:30Dublin
13h 35m
1 stop
BHD20:05Belfast City
€184
Aer Lingus
28 May
BHD12:50Belfast City
6h 00m
1 stop
ORK18:50Cork
4 Jun
ORK07:10Cork
6h 30m
1 stop
BHD13:40Belfast City
€455
Aer Lingus
5 Jun
BHD07:00Belfast City
11h 50m
3 stops
ORK18:50Cork
12 Jun
ORK07:10Cork
10h 35m
3 stops
BHD17:45Belfast City
€877

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 13 May 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

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Wed 10/6

15:40-20:45

1 stop5h 05m

Dublin

Tue 30/6

20:30-08:05

1 stop11h 35m

€85

BelfastCork

BFS - ORK

BFSORK

Belfast Intl

Wed 3/6

15:40-23:55

1 stop8h 15m

Cork

Wed 10/6

09:55-15:15

1 stop5h 20m

€85

BelfastCork

BFS - ORK

BFSORK

Belfast Intl

Thu 4/6

22:45-08:20

1 stop9h 35m

Cork

Wed 10/6

09:55-15:15

1 stop5h 20m

€86

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Wed 10/6

07:30-12:30

1 stop5h 00m

Dublin

Tue 30/6

20:30-08:05

1 stop11h 35m

€87

BelfastCork

BFS - ORK

BFSORK

Belfast Intl

Thu 28/5

22:45-08:20

1 stop9h 35m

Cork

Thu 4/6

17:25-22:20

1 stop4h 55m

€87

BelfastCork

BFS - ORK

BFSORK

Belfast Intl

Thu 4/6

22:45-08:20

1 stop9h 35m

Cork

Wed 10/6

09:55-15:15

1 stop5h 20m

€88

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Wed 10/6

07:30-12:30

1 stop5h 00m

Dublin

Tue 30/6

20:30-08:05

1 stop11h 35m

€89
Fastest return journey

BelfastCork

BFS - ORK

BFSORK

Belfast Intl

Thu 4/6

12:45-16:55

1 stop4h 10m

Cork

Wed 10/6

15:20-19:50

1 stop4h 30m

€89

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Mon 8/6

08:40-14:55

1 stop6h 15m

Dublin

Mon 15/6

20:35-10:00

1 stop13h 25m

€89

BelfastShannon

BHD - SNN

BHDSNN

Belfast City

Tue 16/6

06:30-16:10

1 stop9h 40m

Shannon

Wed 17/6

21:15-08:50

1 stop11h 35m

€398

Flights are sorted by cheapest return flights first.

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

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 20m

Direct flights

None
The fastest flight from Belfast to Ireland takes 4h 20m
There are no direct flights from Belfast to Ireland. There are no popular flight routes from Belfast to Ireland.
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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.

Frequently asked questions about flying from Belfast to Ireland

  • How do I get Price Alerts for flights from Belfast to Ireland?

    Search flight deals from Belfast to Ireland. While viewing offers you’ll have the option to create a Price Alert.

  • How can I save money on flights from Belfast to Ireland with momondo?

    With “Price Forecast”, learn how soon you should book your flight in advance. Down to the day of week and time of day, our information can inform you on the ideal time to book to save on your travel. Our “Price Calendar” shows you at a quick glance when to book your travel for lower rates. By setting “Price Alerts” you can monitor changes in price and target the ideal time to book. Search for your trip destination by budget amount via our “Explore” feature. Whether you’re looking for ideas for your next travel adventure or cost-cutting tips, our “Discover” content is a great place to start.

  • How does momondo find its flight prices?

    momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

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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