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

Return flights

15 Sep - 24 Sep	China Airlines
29 Sep - 14 Oct	Etihad Airways
15 Sep - 25 Sep	Etihad Airways
24 Sep - 29 Sep	Qatar Airways
16 Sep - 23 Sep	Qatar Airways
24 Sep - 01 Oct	Qatar Airways
03 Sep - 08 Sep	Qatar Airways
17 Sep - 24 Sep	Qatar Airways
24 Sep - 05 Oct	Qatar Airways
20 Sep - 29 Sep	Qatar Airways
25 Sep - 01 Oct	Qatar Airways
19 Sep - 29 Sep	Qatar Airways
03 Sep - 17 Sep	Qatar Airways
17 Sep - 25 Sep	Qatar Airways
26 Sep - 04 Oct	Etihad Airways
16 Sep - 07 Oct	Qatar Airways

Also check the deals for one-way flights from Ontario to Denpasar 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 Denpasar in September from 1184€

Return flights