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

Return flights

07 Aug - 22 Aug	WestJet	direct
26 Aug - 09 Sep	WestJet
28 Aug - 09 Sep	WestJet	direct
30 Aug - 17 Sep	WestJet
28 Aug - 11 Sep	Finnair
12 Aug - 19 Aug	Finnair
13 Aug - 22 Aug	Finnair
20 Aug - 03 Sep	WestJet
20 Aug - 17 Sep	WestJet
28 Aug - 04 Sep	WestJet
26 Aug - 16 Sep	WestJet
27 Aug - 17 Sep	Flair Airlines
19 Aug - 02 Sep	WestJet	direct
04 Aug - 07 Aug	WestJet
14 Aug - 22 Aug	WestJet	direct
16 Aug - 22 Aug	WestJet
05 Aug - 19 Aug	Finnair
05 Aug - 19 Aug	WestJet	direct
21 Aug - 26 Aug	Alaska Airlines
18 Aug - 31 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 435€

Return flights