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

Return flights

04 Dec - 09 Dec	Icelandair
02 Dec - 09 Dec	Aer Lingus	direct
04 Dec - 09 Dec	Aer Lingus	direct
04 Dec - 14 Dec	Icelandair
04 Dec - 14 Dec	Air Canada	direct
07 Dec - 17 Dec	Air Canada	direct
10 Dec - 30 Dec	Icelandair
01 Dec - 01 Jan	Icelandair
07 Dec - 27 Dec	Icelandair
13 Dec - 30 Dec	Icelandair
12 Dec - 15 Dec	British Airways
27 Dec - 11 Jan	British Airways
23 Dec - 30 Jan	Icelandair
12 Dec - 04 Jan	Icelandair
27 Dec - 11 Jan	Air Canada	direct
14 Dec - 04 Jan	Icelandair
18 Dec - 09 Jan	Icelandair
18 Dec - 05 Jan	Icelandair
25 Dec - 05 Jan	Icelandair
18 Dec - 04 Jan	Icelandair

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

Book a cheap hotel in Dublin

Cheap car rent in Dublin

Cheapest return flights from Toronto to Dublin in December from 359€

Return flights