Cheapest return flights from Toronto to Ottawa in September from $343
AirHint found the following cheapest return flights from Toronto (YTZ) to Ottawa (YOW) in September 2025 (see full year).
Return flights
| 07 Sep - 12 Sep | Porter Airlines (Canada) Ltd | direct | |
| 07 Sep - 08 Sep | Porter Airlines (Canada) Ltd | direct |
Also check the deals for one-way flights from Toronto to Ottawa 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.
