Cheapest one-way flights from Ottawa to Toronto in September from $131

AirHint found the following cheapest one-way flights from Ottawa (YOW) to Toronto (YYZ) in September 2026 (see full year).

One-Way flights

11 Sep WestJet direct
13 Sep Porter Airlines (Canada) Ltd direct
10 Sep Porter Airlines (Canada) Ltd direct
15 Sep Porter Airlines (Canada) Ltd direct
05 Sep Porter Airlines (Canada) Ltd direct
04 Sep Porter Airlines (Canada) Ltd direct
02 Sep Porter Airlines (Canada) Ltd direct
01 Sep Porter Airlines (Canada) Ltd direct
20 Sep Porter Airlines (Canada) Ltd direct

Also check the deals for return flights from Ottawa to Toronto in September.

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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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