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

Return flights

21 Sep - 26 Sep	jetBlue
22 Sep - 26 Sep	jetBlue
16 Sep - 20 Sep	jetBlue
01 Sep - 06 Sep	Frontier Airlines
15 Sep - 19 Sep	jetBlue
14 Sep - 19 Sep	jetBlue
09 Sep - 14 Sep	Frontier Airlines
13 Sep - 17 Sep	jetBlue
07 Sep - 14 Sep	Southwest Airlines
15 Sep - 21 Sep	Southwest Airlines

Also check the deals for one-way flights from Ontario 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 Ontario to Punta Cana in September from $480

Return flights