Cheapest return flights from Ottawa to Toronto in September from $150

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

Return flights

01 Sep - 03 Sep WestJet direct
01 Sep - 08 Sep WestJet direct
02 Sep - 09 Sep WestJet direct
02 Sep - 02 Sep Porter Airlines (Canada) Ltd direct
01 Sep - 01 Sep Porter Airlines (Canada) Ltd direct
01 Sep - 02 Sep Porter Airlines (Canada) Ltd direct
09 Sep - 23 Sep WestJet direct
10 Sep - 24 Sep WestJet direct
16 Sep - 24 Sep WestJet direct
03 Sep - 24 Sep WestJet direct
28 Sep - 19 Oct WestJet direct
17 Sep - 08 Oct WestJet direct
16 Sep - 07 Oct WestJet direct
30 Sep - 10 Oct WestJet direct
23 Sep - 01 Oct Porter Airlines (Canada) Ltd direct
12 Sep - 01 Oct Porter Airlines (Canada) Ltd direct
11 Sep - 01 Oct Porter Airlines (Canada) Ltd direct
13 Sep - 01 Oct Porter Airlines (Canada) Ltd direct
14 Sep - 01 Oct Porter Airlines (Canada) Ltd direct
17 Sep - 01 Oct Porter Airlines (Canada) Ltd direct

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