AirHint found the following cheapest return flights from Toronto (YTZ) to Karachi (KHI) in September 2025 (see full year).

Return flights

15 Sep - 30 Sep	Porter Airlines (Canada) Ltd
14 Sep - 25 Sep	Porter Airlines (Canada) Ltd
27 Sep - 14 Oct	Porter Airlines (Canada) Ltd
01 Sep - 24 Sep	Emirates
24 Sep - 22 Oct	Emirates
11 Sep - 24 Sep	Emirates
15 Sep - 03 Oct	Emirates
14 Sep - 12 Oct	Emirates
03 Sep - 22 Sep	Emirates
10 Sep - 08 Oct	Emirates
10 Sep - 10 Oct	Emirates
04 Sep - 10 Sep	Emirates

Also check the deals for one-way flights from Toronto to Karachi 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 Toronto to Karachi in September from $1478

Return flights