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Cheap flights from Belfast Intl Airport to Ireland from £51

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 Intl Airport to Ireland departing on 21/12. 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 Intl Airport to Ireland

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
08:25 - 21:10BFS-DUB
12h 45m1 stop
Multiple Airlines Logo
22:10 - 07:55DUB-BFS
9h 45m1 stop
£99Multiple Airlines
Find Deal
Sat, 6 Dec - Mon, 8 Dec
Multiple Airlines Logo
05:45 - 18:20BFS-DUB
12h 35m1 stop
Multiple Airlines Logo
22:10 - 07:55DUB-BFS
9h 45m1 stop
£104Multiple Airlines
Find Deal
Sat, 6 Dec - Mon, 8 Dec
Multiple Airlines Logo
18:30 - 23:05BFS-DUB
4h 35m1 stop
Multiple Airlines Logo
16:05 - 23:25DUB-BFS
7h 20m1 stop
£105Multiple Airlines
Find Deal
Fri, 12 Dec - Fri, 19 Dec
Multiple Airlines Logo
21:05 - 07:15BFS-DUB
10h 10m1 stop
Multiple Airlines Logo
21:25 - 06:55DUB-BFS
9h 30m1 stop
£105Multiple Airlines
Find Deal
Fri, 12 Dec - Fri, 19 Dec
Multiple Airlines Logo
09:15 - 18:05BFS-ORK
8h 50m1 stop
Multiple Airlines Logo
21:00 - 08:20ORK-BFS
11h 20m1 stop
£105Multiple Airlines
Find Deal
Sat, 6 Dec - Mon, 8 Dec
Multiple Airlines Logo
19:45 - 08:10BFS-SNN
12h 25m1 stop
Multiple Airlines Logo
18:15 - 22:50SNN-BFS
4h 35m1 stop
£106Multiple Airlines
Find Deal
Thu, 27 Nov - Thu, 4 Dec
Multiple Airlines Logo
21:00 - 07:05BFS-DUB
10h 05m1 stop
Multiple Airlines Logo
21:50 - 07:25DUB-BFS
9h 35m1 stop
£109Multiple Airlines
Find Deal
Thu, 27 Nov - Thu, 4 Dec
Multiple Airlines Logo
09:15 - 18:05BFS-ORK
8h 50m1 stop
Multiple Airlines Logo
13:15 - 21:55ORK-BFS
8h 40m1 stop
£109Multiple Airlines
Find Deal
Sat, 6 Dec - Mon, 8 Dec
Multiple Airlines Logo
23:05 - 07:55BFS-DUB
8h 50m1 stop
Multiple Airlines Logo
20:50 - 07:25DUB-BFS
10h 35m1 stop
£109Multiple Airlines
Find Deal
Sun, 14 Dec - Sun, 21 Dec
Multiple Airlines Logo
22:45 - 07:25BFS-ORK
8h 40m1 stop
Multiple Airlines Logo
22:25 - 08:00ORK-BFS
9h 35m1 stop
£110Multiple Airlines
Find Deal
Sun, 14 Dec - Sun, 21 Dec

momondo Fare Finder

 
Customise your flight search to find flights from Belfast Intl Airport 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 31 October 2025.
Use the filters below to find and compare flights from Belfast Intl Airport to Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Sat 6/12

08:25-21:10

1 stop12h 45m

Dublin

Mon 8/12

22:10-07:55

1 stop9h 45m

£99

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Sat 6/12

05:45-18:20

1 stop12h 35m

Dublin

Mon 8/12

22:10-07:55

1 stop9h 45m

£104

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Fri 12/12

18:30-23:05

1 stop4h 35m

Dublin

Fri 19/12

16:05-23:25

1 stop7h 20m

£105

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Fri 12/12

21:05-07:15

1 stop10h 10m

Dublin

Fri 19/12

21:25-06:55

1 stop9h 30m

£105

BelfastCork

BFS - ORK

BFSORK

Belfast Intl

Sat 6/12

09:15-18:05

1 stop8h 50m

Cork

Mon 8/12

21:00-08:20

1 stop11h 20m

£105

BelfastShannon

BFS - SNN

BFSSNN

Belfast Intl

Thu 27/11

19:45-08:10

1 stop12h 25m

Shannon

Thu 4/12

18:15-22:50

1 stop4h 35m

£106

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Thu 27/11

21:00-07:05

1 stop10h 05m

Dublin

Thu 4/12

21:50-07:25

1 stop9h 35m

£109

BelfastCork

BFS - ORK

BFSORK

Belfast Intl

Sat 6/12

09:15-18:05

1 stop8h 50m

Cork

Mon 8/12

13:15-21:55

1 stop8h 40m

£109

BelfastDublin

BFS - DUB

BFSDUB

Belfast Intl

Sun 14/12

23:05-07:55

1 stop8h 50m

Dublin

Sun 21/12

20:50-07:25

1 stop10h 35m

£109

BelfastCork

BFS - ORK

BFSORK

Belfast Intl

Sun 14/12

22:45-07:25

1 stop8h 40m

Cork

Sun 21/12

22:25-08:00

1 stop9h 35m

£110

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 Intl Airport 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 Intl Airport to Ireland when you can find flight prices for as low as £139. 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 £160. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

Cheap Belfast Intl Airport to Ireland flight deals and tips

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

Direct flights

None
There are no direct flights from Belfast Intl Airport to Ireland. There are no popular flight routes from Belfast Intl Airport to Ireland.
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  • When did momondo last update prices for flights from Belfast Intl Airport to Ireland?

    Prices for flights from Belfast Intl Airport to Ireland refresh daily.

  • How old do you have to be to fly from Belfast Intl Airport to Ireland?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Belfast Intl Airport to Ireland.

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

    The required travel and health documents for your Ireland trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ireland. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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?

Flights from Belfast to Ireland with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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?

Yes. momondo can track prices for Belfast to Ireland flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Find better results for your trip to Ireland

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