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

Return flights

04 Oct - 19 Oct	WestJet	direct
04 Oct - 22 Oct	WestJet
13 Oct - 22 Oct	WestJet
14 Oct - 21 Oct	WestJet
23 Oct - 30 Nov	WestJet
20 Oct - 29 Oct	WestJet
04 Oct - 22 Oct	WestJet	direct
13 Oct - 22 Oct	WestJet	direct
06 Oct - 14 Oct	WestJet
16 Oct - 21 Oct	WestJet
01 Oct - 04 Oct	Porter Airlines (Canada) Ltd
19 Oct - 03 Nov	WestJet
27 Oct - 03 Nov	Air Canada

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 276€

Return flights