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

Return flights

26 Aug - 12 Sep	WestJet
26 Aug - 09 Sep	WestJet
25 Aug - 11 Sep	WestJet
22 Aug - 09 Sep	WestJet
31 Aug - 13 Sep	WestJet
31 Aug - 20 Sep	WestJet
27 Aug - 08 Sep	Iberia
22 Aug - 13 Sep	WestJet
28 Aug - 02 Sep	Air Canada
21 Aug - 28 Aug	Air Canada
21 Aug - 13 Sep	WestJet
23 Aug - 29 Aug	Iberia
21 Aug - 30 Aug	Air Canada
20 Aug - 29 Aug	Air Canada
18 Aug - 26 Aug	WestJet	direct
19 Aug - 24 Aug	WestJet
20 Aug - 22 Aug	WestJet
19 Aug - 24 Aug	WestJet	direct
19 Aug - 26 Aug	WestJet	direct

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

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 August from 474€

Return flights