AirHint found the following cheapest return flights from Montreal (YUL) to Punta Cana (PUJ) in September 2025 (see full year).

Return flights

13 Sep - 20 Sep	American Airlines
29 Sep - 03 Oct	United
28 Sep - 05 Oct	United
27 Sep - 04 Oct	United
09 Sep - 23 Sep	United
06 Sep - 27 Sep	United
12 Sep - 15 Sep	United
06 Sep - 13 Sep	United
08 Sep - 15 Sep	United
12 Sep - 19 Sep	United
22 Sep - 29 Sep	United
05 Sep - 12 Sep	United
07 Sep - 14 Sep	United
29 Sep - 06 Oct	United
09 Sep - 02 Oct	United
17 Sep - 15 Oct	Air Canada	direct
19 Sep - 02 Oct	Air Transat	direct
24 Sep - 01 Oct	Air Transat	direct
25 Sep - 02 Oct	Air Transat	direct
26 Sep - 03 Oct	Air Transat	direct

Also check the deals for one-way flights from Montreal to Punta Cana in September.

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 Punta Cana in September from $316

Return flights