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

Return flights

12 Jan - 19 Jan	British Airways
14 Jan - 21 Jan	British Airways
20 Jan - 27 Jan	British Airways
27 Jan - 03 Feb	British Airways
29 Jan - 05 Feb	British Airways
28 Jan - 04 Feb	British Airways
06 Jan - 13 Jan	British Airways
08 Jan - 15 Jan	British Airways
03 Jan - 10 Jan	Air Canada
04 Jan - 11 Jan	Air Canada
23 Jan - 30 Jan	TAP
16 Jan - 23 Jan	TAP
01 Jan - 08 Jan	Lufthansa
26 Jan - 02 Feb	Lufthansa
30 Jan - 06 Feb	British Airways
31 Jan - 07 Feb	Lufthansa

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 516€

Return flights