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

Return flights

22 Aug - 24 Aug	Porter Airlines (Canada) Ltd
20 Aug - 27 Aug	Porter Airlines (Canada) Ltd
06 Aug - 13 Aug	Air Canada
04 Aug - 08 Aug	Porter Airlines (Canada) Ltd
03 Aug - 08 Aug	Porter Airlines (Canada) Ltd
18 Aug - 07 Sep	Emirates
18 Aug - 31 Aug	Emirates
11 Aug - 20 Aug	Emirates
19 Aug - 25 Aug	Emirates
20 Aug - 05 Sep	Emirates
19 Aug - 05 Sep	Emirates
25 Aug - 16 Sep	Emirates
11 Aug - 22 Aug	Emirates
11 Aug - 01 Sep	Emirates
11 Aug - 27 Aug	SWISS
24 Aug - 13 Sep	Emirates
08 Aug - 03 Sep	Emirates
30 Aug - 13 Sep	Emirates
08 Aug - 01 Sep	Emirates
05 Aug - 03 Sep	Emirates

Also check the deals for one-way flights from Toronto to Seoul in August.

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 August from $1105

Return flights