AirHint found the following cheapest return flights from Montreal (YUL) to St.-denis (RUN) in January 2026 (see full year).

Return flights

23 Jan - 05 Feb	FrenchBee
26 Jan - 02 Feb	Porter Airlines (Canada) Ltd
28 Jan - 04 Feb	Porter Airlines (Canada) Ltd
31 Jan - 07 Feb	Air Transat
27 Jan - 03 Feb	Porter Airlines (Canada) Ltd
25 Jan - 01 Feb	FrenchBee
29 Jan - 05 Feb	Porter Airlines (Canada) Ltd
20 Jan - 27 Jan	Porter Airlines (Canada) Ltd
22 Jan - 29 Jan	Porter Airlines (Canada) Ltd
21 Jan - 28 Jan	FrenchBee
24 Jan - 31 Jan	Air Transat
22 Jan - 01 Feb	Porter Airlines (Canada) Ltd
23 Jan - 30 Jan	FrenchBee
18 Jan - 25 Jan	FrenchBee
30 Jan - 06 Feb	FrenchBee
19 Jan - 26 Jan	Porter Airlines (Canada) Ltd
17 Jan - 24 Jan	Air Transat

Also check the deals for one-way flights from Montreal to St.-denis 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.

Book a cheap hotel in St.-denis

Cheap car rent in St.-denis

Cheapest return flights from Montreal to St.-denis in January from $935

Return flights