Cheapest one-way flights from Toronto to Ottawa in September from $157

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

One-Way flights

05 Sep Porter Airlines (Canada) Ltd direct
24 Sep Porter Airlines (Canada) Ltd direct
13 Sep Porter Airlines (Canada) Ltd direct
09 Sep Porter Airlines (Canada) Ltd direct
11 Sep Porter Airlines (Canada) Ltd direct
23 Sep Porter Airlines (Canada) Ltd direct
25 Sep Porter Airlines (Canada) Ltd direct

Also check the deals for return 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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