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

Return flights

06 Oct - 20 Oct	WestJet	direct
14 Oct - 19 Oct	WestJet
09 Oct - 13 Oct	Icelandair
21 Oct - 24 Oct	WestJet	direct
10 Oct - 15 Oct	Icelandair
08 Oct - 05 Nov	Icelandair
08 Oct - 30 Oct	Icelandair
31 Oct - 05 Nov	Icelandair
08 Oct - 18 Oct	Icelandair
06 Oct - 16 Oct	Icelandair
09 Oct - 14 Oct	Icelandair
16 Oct - 22 Oct	Icelandair
18 Oct - 08 Nov	Icelandair
27 Oct - 02 Nov	Lufthansa
29 Oct - 05 Nov	Icelandair
27 Oct - 02 Nov	Air Canada	direct
21 Oct - 05 Nov	Icelandair
28 Oct - 04 Nov	Scandinavian Airlines
23 Oct - 03 Nov	Aer Lingus	direct
28 Oct - 04 Nov	Aer Lingus	direct

Also check the deals for one-way flights from Dublin to Toronto 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 Dublin to Toronto in October from 303€

Return flights