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

Return flights

22 Sep - 06 Oct	Air France
17 Sep - 30 Sep	WestJet
04 Sep - 28 Sep	Air France
18 Sep - 02 Oct	WestJet
09 Sep - 24 Sep	WestJet
09 Sep - 25 Sep	WestJet
10 Sep - 25 Sep	WestJet
12 Sep - 14 Sep	WestJet
05 Sep - 28 Sep	Porter Airlines (Canada) Ltd
05 Sep - 12 Sep	Porter Airlines (Canada) Ltd

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

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Cheapest return flights from Ottawa to Tunis in September from 642€

Return flights