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

Return flights

04 Dec - 11 Dec	Flair Airlines
01 Dec - 09 Dec	WestJet
01 Dec - 13 Dec	WestJet
06 Dec - 14 Dec	WestJet
03 Dec - 11 Dec	WestJet
06 Dec - 13 Dec	WestJet
04 Dec - 13 Dec	WestJet
03 Dec - 14 Dec	WestJet
01 Dec - 06 Dec	WestJet
01 Dec - 07 Dec	Flair Airlines
05 Dec - 15 Jan	Flair Airlines
01 Dec - 15 Jan	WestJet
31 Dec - 31 Jan	WestJet
10 Dec - 24 Jan	WestJet
10 Dec - 28 Jan	WestJet
09 Dec - 13 Jan	Porter Airlines (Canada) Ltd
30 Dec - 22 Jan	Flair Airlines
11 Dec - 23 Jan	WestJet
10 Dec - 14 Jan	WestJet
30 Dec - 20 Jan	Flair Airlines

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

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 December from 619€

Return flights