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

Return flights

04 May - 11 May	TAP
04 May - 18 May	TAP
02 May - 09 May	TAP
26 May - 09 Jun	TAP
27 May - 01 Jun	TAP
04 May - 30 May	TAP
03 May - 12 May	TAP
25 May - 09 Jun	WestJet
04 May - 11 May	Aer Lingus	direct
09 May - 11 May	TAP
08 May - 10 May	TAP
22 May - 25 May	WestJet
23 May - 04 Jun	WestJet
18 May - 31 May	TAP
26 May - 20 Jun	WestJet
18 May - 13 Jun	Icelandair
27 May - 01 Jun	Aer Lingus	direct
18 May - 13 Jun	WestJet	direct
23 May - 04 Jun	WestJet	direct
26 May - 20 Jun	Air Canada	direct

Also check the deals for one-way flights from Toronto 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 Toronto to Dublin in May from $397

Return flights