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

Return flights

06 Apr - 13 Apr	Porter Airlines (Canada) Ltd
05 Apr - 12 Apr	FrenchBee
30 Apr - 07 May	FrenchBee
01 Apr - 08 Apr	FrenchBee
12 Apr - 19 Apr	FrenchBee
08 Apr - 15 Apr	KLM
29 Apr - 06 May	KLM
07 Apr - 14 Apr	KLM
09 Apr - 16 Apr	KLM
13 Apr - 20 Apr	KLM
15 Apr - 22 Apr	KLM
14 Apr - 21 Apr	KLM
28 Apr - 05 May	KLM
27 Apr - 04 May	KLM
22 Apr - 04 May	KLM
26 Apr - 03 May	FrenchBee
24 Apr - 01 May	KLM
25 Apr - 02 May	KLM

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

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 April from $1122

Return flights