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

Return flights

14 Oct - 22 Oct	WestJet	direct
08 Oct - 22 Oct	WestJet
02 Oct - 16 Oct	WestJet
08 Oct - 16 Oct	WestJet
01 Oct - 08 Oct	WestJet
30 Oct - 17 Nov	WestJet
14 Oct - 04 Nov	WestJet
14 Oct - 17 Oct	WestJet
21 Oct - 11 Nov	Porter Airlines (Canada) Ltd
21 Oct - 06 Nov	Porter Airlines (Canada) Ltd
14 Oct - 21 Oct	WestJet	direct
07 Oct - 24 Oct	WestJet	direct
04 Oct - 11 Oct	WestJet
01 Oct - 15 Oct	Air Canada
22 Oct - 12 Nov	Air Canada
15 Oct - 05 Nov	Air Canada
15 Oct - 10 Nov	Air Canada
22 Oct - 10 Nov	Air Canada
14 Oct - 03 Nov	Air Canada
30 Oct - 05 Nov	WestJet

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

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 October from $459

Return flights