AirHint found the following cheapest return flights from Toronto (YYZ) to Dublin (DUB) in October 2025 (see full year).

Return flights

22 Oct - 15 Nov	Icelandair
15 Oct - 08 Nov	Icelandair
17 Oct - 08 Nov	Icelandair
12 Oct - 01 Nov	Icelandair
18 Oct - 08 Nov	Icelandair
16 Oct - 08 Nov	Icelandair
18 Oct - 31 Oct	Icelandair
20 Oct - 31 Oct	Icelandair
18 Oct - 22 Nov	Icelandair
23 Oct - 06 Nov	Icelandair
01 Oct - 07 Nov	Icelandair
23 Oct - 03 Nov	Icelandair
11 Oct - 16 Oct	Icelandair
05 Oct - 09 Oct	Icelandair
01 Oct - 07 Oct	Icelandair
01 Oct - 10 Oct	Icelandair
22 Oct - 31 Oct	Icelandair
25 Oct - 31 Oct	Icelandair
16 Oct - 22 Oct	Icelandair
12 Oct - 22 Oct	Icelandair

Also check the deals for one-way flights from Toronto to Dublin in October.

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 October from $372

Return flights