Cheapest return flights from Toronto to Ottawa in September from $256

AirHint found the following cheapest return flights from Toronto (YTZ) to Ottawa (YOW) in September 2025 (see full year).

Return flights

01 Sep - 02 Sep Porter Airlines (Canada) Ltd direct
25 Sep - 02 Oct Porter Airlines (Canada) Ltd direct
09 Sep - 11 Sep Air Canada direct
01 Sep - 10 Sep Porter Airlines (Canada) Ltd direct
01 Sep - 14 Sep Porter Airlines (Canada) Ltd direct
01 Sep - 19 Sep Porter Airlines (Canada) Ltd direct
01 Sep - 07 Sep Porter Airlines (Canada) Ltd direct
01 Sep - 17 Sep Porter Airlines (Canada) Ltd direct
01 Sep - 06 Sep Porter Airlines (Canada) Ltd direct
01 Sep - 03 Sep Porter Airlines (Canada) Ltd direct
01 Sep - 04 Sep Porter Airlines (Canada) Ltd direct
17 Sep - 02 Oct Porter Airlines (Canada) Ltd direct
24 Sep - 02 Oct Porter Airlines (Canada) Ltd direct
13 Sep - 01 Oct Porter Airlines (Canada) Ltd direct
13 Sep - 03 Oct Porter Airlines (Canada) Ltd direct
13 Sep - 02 Oct Porter Airlines (Canada) Ltd direct
11 Sep - 01 Oct Porter Airlines (Canada) Ltd direct
11 Sep - 02 Oct Porter Airlines (Canada) Ltd direct
26 Sep - 01 Oct Porter Airlines (Canada) Ltd direct
26 Sep - 03 Oct Porter Airlines (Canada) Ltd direct

Also check the deals for one-way flights from Toronto to Ottawa in September.

Skyscanner

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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