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

Return flights

02 Dec - 09 Dec	Icelandair
11 Dec - 14 Dec	Icelandair
13 Dec - 14 Dec	Icelandair
12 Dec - 16 Dec	Icelandair
01 Dec - 07 Dec	Icelandair
11 Dec - 15 Dec	Icelandair
12 Dec - 15 Dec	Icelandair
17 Dec - 07 Jan	Icelandair
01 Dec - 10 Dec	Icelandair
11 Dec - 16 Dec	Icelandair
02 Dec - 09 Dec	Aer Lingus	direct
09 Dec - 03 Jan	Icelandair
14 Dec - 01 Jan	Icelandair
20 Dec - 11 Jan	Icelandair
16 Dec - 04 Jan	Icelandair
31 Dec - 10 Jan	Icelandair
14 Dec - 04 Jan	Icelandair
18 Dec - 14 Jan	Icelandair
31 Dec - 06 Jan	Icelandair
24 Dec - 07 Jan	Icelandair

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

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 December from $395

Return flights