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
05 Jan - 12 Jan	Lufthansa
01 Jan - 08 Jan	Lufthansa
13 Jan - 20 Jan	SWISS
11 Jan - 18 Jan	TAP
19 Jan - 26 Jan	TAP
23 Jan - 30 Jan	TAP
12 Jan - 19 Jan	TAP
14 Jan - 21 Jan	Aer Lingus
15 Jan - 22 Jan	Aer Lingus
26 Jan - 02 Feb	Aer Lingus
28 Jan - 04 Feb	Aer Lingus
30 Jan - 06 Feb	TAP
31 Jan - 07 Feb	Aer Lingus

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 494€

Return flights