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

Return flights

29 Sep - 19 Oct	Emirates
17 Sep - 16 Oct	Emirates
09 Sep - 09 Oct	Emirates
29 Sep - 12 Oct	Emirates
29 Sep - 06 Oct	Emirates
23 Sep - 07 Oct	Emirates
30 Sep - 07 Oct	Emirates
03 Sep - 10 Sep	Porter Airlines (Canada) Ltd
27 Sep - 12 Oct	Emirates
06 Sep - 06 Oct	Emirates
06 Sep - 07 Oct	Emirates
03 Sep - 25 Sep	Porter Airlines (Canada) Ltd
17 Sep - 27 Sep	Porter Airlines (Canada) Ltd
10 Sep - 26 Sep	Porter Airlines (Canada) Ltd
14 Sep - 21 Sep	Emirates
02 Sep - 24 Sep	Emirates
08 Sep - 21 Sep	Emirates
05 Sep - 21 Sep	Emirates
12 Sep - 20 Sep	Emirates
08 Sep - 29 Sep	Emirates

Also check the deals for one-way flights from Toronto to Seoul 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 Seoul in September from $2244

Return flights