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

Return flights

28 Aug - 15 Sep	Porter Airlines (Canada) Ltd
26 Aug - 23 Sep	WestJet
31 Aug - 14 Sep	WestJet
28 Aug - 12 Sep	WestJet
27 Aug - 10 Sep	WestJet
29 Aug - 14 Sep	WestJet
25 Aug - 10 Sep	WestJet
28 Aug - 30 Sep	WestJet
31 Aug - 03 Sep	WestJet
30 Aug - 14 Sep	Porter Airlines (Canada) Ltd
22 Aug - 29 Aug	WestJet
18 Aug - 29 Aug	WestJet
24 Aug - 28 Aug	WestJet
27 Aug - 30 Aug	WestJet
18 Aug - 27 Aug	WestJet
18 Aug - 31 Aug	WestJet
20 Aug - 29 Aug	Porter Airlines (Canada) Ltd
27 Aug - 31 Aug	WestJet
21 Aug - 27 Aug	WestJet
28 Aug - 31 Aug	WestJet

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.

Book a cheap hotel in Seoul

Cheap car rent in Seoul

Cheapest return flights from Toronto to Seoul in August from 823€

Return flights