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

Return flights

06 Mar - 31 Mar	FrenchBee
22 Mar - 29 Mar	FrenchBee
20 Mar - 02 Apr	FrenchBee
29 Mar - 05 Apr	FrenchBee
18 Mar - 25 Mar	Porter Airlines (Canada) Ltd
04 Mar - 14 Mar	FrenchBee
09 Mar - 16 Mar	Porter Airlines (Canada) Ltd
10 Mar - 17 Mar	Porter Airlines (Canada) Ltd
23 Mar - 30 Mar	Porter Airlines (Canada) Ltd
24 Mar - 31 Mar	Porter Airlines (Canada) Ltd
21 Mar - 28 Mar	Air Transat
31 Mar - 07 Apr	Air Transat
06 Mar - 13 Mar	FrenchBee
25 Mar - 01 Apr	FrenchBee
30 Mar - 06 Apr	FrenchBee
27 Mar - 03 Apr	KLM
26 Mar - 02 Apr	KLM
28 Mar - 04 Apr	Air Transat

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

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 St.-denis in March from 857€

Return flights