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

Return flights

07 Dec - 11 Dec	WestJet
05 Dec - 12 Dec	WestJet
03 Dec - 14 Dec	Air France
07 Dec - 13 Dec	Air France
02 Dec - 09 Dec	Air France
02 Dec - 10 Dec	Air France
01 Dec - 16 Dec	Air France
07 Dec - 14 Dec	Air France
01 Dec - 07 Dec	Air France
06 Dec - 25 Dec	Air France
24 Dec - 22 Jan	Air France
24 Dec - 20 Jan	Air France
24 Dec - 11 Jan	Air France
15 Dec - 11 Jan	Air France
31 Dec - 13 Jan	Air Canada
25 Dec - 21 Jan	KLM
25 Dec - 17 Jan	KLM
25 Dec - 18 Jan	KLM
30 Dec - 09 Jan	Air Canada
25 Dec - 11 Jan	KLM

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 796€

Return flights