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

Return flights

28 Jan - 04 Feb	TAP
14 Jan - 21 Jan	TAP
18 Jan - 25 Jan	TAP
23 Jan - 01 Feb	TAP
16 Jan - 23 Jan	TAP
11 Jan - 18 Jan	FrenchBee
26 Jan - 02 Feb	Air Transat
19 Jan - 26 Jan	Air Transat
21 Jan - 28 Jan	FrenchBee
20 Jan - 27 Jan	British Airways
12 Jan - 19 Jan	British Airways
13 Jan - 20 Jan	British Airways
27 Jan - 03 Feb	British Airways
26 Jan - 21 Feb	Azores Airlines
23 Jan - 30 Jan	TAP
29 Jan - 05 Feb	British Airways
25 Jan - 01 Feb	FrenchBee
23 Jan - 13 Feb	TAP
30 Jan - 06 Feb	FrenchBee
31 Jan - 07 Feb	Air Transat

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 450€

Return flights