AirHint found the following cheapest return flights from Calgary (YYC) to Dublin (DUB) in May 2026 (see full year).

Return flights

23 May - 16 Jun	WestJet
12 May - 09 Jun	WestJet
13 May - 09 Jun	WestJet
02 May - 12 May	WestJet
17 May - 01 Jun	WestJet
21 May - 05 Jun	WestJet
01 May - 15 May	WestJet
14 May - 31 May	WestJet
10 May - 30 May	WestJet
11 May - 06 Jun	WestJet
23 May - 07 Jun	WestJet
09 May - 30 May	Air Transat
06 May - 07 May	Finnair
07 May - 08 May	WestJet

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

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 May from 417€

Return flights