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

Return flights

07 May - 24 May	Air Transat
23 May - 27 May	Air Transat
10 May - 20 May	Air Transat
07 May - 20 May	Air Transat
03 May - 03 Jun	Air Transat
14 May - 24 May	Air Transat
01 May - 29 May	Flair Airlines
25 May - 10 Jun	WestJet
11 May - 20 May	WestJet
01 May - 11 May	Flair Airlines
01 May - 21 May	Flair Airlines
25 May - 10 Jun	WestJet	direct
09 May - 19 May	Iberia
19 May - 02 Jun	WestJet
30 May - 15 Jun	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 $505

Return flights