AirHint found the following cheapest return flights from Calgary (YYC) to Dublin (DUB) in December 2025 (see full year).

Return flights

01 Dec - 06 Dec	WestJet
06 Dec - 09 Dec	WestJet
04 Dec - 09 Dec	WestJet
14 Dec - 30 Dec	WestJet
14 Dec - 17 Jan	WestJet
12 Dec - 06 Jan	Finnair
11 Dec - 31 Dec	Air Canada
16 Dec - 27 Dec	WestJet
11 Dec - 06 Jan	Air France
18 Dec - 10 Jan	Air France
18 Dec - 01 Jan	Air France
22 Dec - 27 Dec	WestJet
17 Dec - 06 Jan	KLM
15 Dec - 22 Dec	Flair Airlines
22 Dec - 01 Jan	KLM
21 Dec - 28 Dec	WestJet
18 Dec - 31 Dec	Air France
20 Dec - 10 Jan	Air Canada
22 Dec - 04 Jan	KLM
23 Dec - 03 Jan	Air France

Also check the deals for one-way flights from Calgary to Dublin in December.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Calgary to Dublin in December from 470€

Return flights