AirHint found the following cheapest return flights from Montreal (YUL) to Dublin (DUB) in January 2026 (see full year).

Return flights

04 Jan - 11 Jan	Air Canada
16 Jan - 23 Jan	SWISS
01 Jan - 08 Jan	Lufthansa
23 Jan - 30 Jan	TAP
05 Jan - 12 Jan	Lufthansa
02 Jan - 09 Jan	Air Canada
03 Jan - 10 Jan	Air Canada
12 Jan - 19 Jan	TAP
11 Jan - 18 Jan	TAP
18 Jan - 25 Jan	TAP
25 Jan - 01 Feb	TAP
30 Jan - 06 Feb	TAP
28 Jan - 04 Feb	TAP
26 Jan - 02 Feb	Aer Lingus
27 Jan - 03 Feb	Aer Lingus
29 Jan - 05 Feb	Aer Lingus
31 Jan - 07 Feb	TAP

Also check the deals for one-way flights from Montreal to Dublin in January.

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 Montreal to Dublin in January from $581

Return flights