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	WestJet
04 Dec - 13 Dec	Flair Airlines
04 Dec - 14 Dec	WestJet
01 Dec - 14 Dec	WestJet
01 Dec - 11 Dec	WestJet
06 Dec - 16 Dec	WestJet
07 Dec - 14 Dec	WestJet
09 Dec - 16 Dec	Flair Airlines
02 Dec - 07 Dec	Flair Airlines
06 Dec - 14 Dec	WestJet
05 Dec - 15 Jan	WestJet
31 Dec - 25 Jan	WestJet
31 Dec - 31 Jan	Flair Airlines
08 Dec - 19 Jan	Flair Airlines
26 Dec - 31 Jan	WestJet
25 Dec - 31 Jan	Flair Airlines
24 Dec - 18 Jan	Flair Airlines
25 Dec - 18 Jan	Flair Airlines
26 Dec - 18 Jan	WestJet
30 Dec - 18 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.

Book a cheap hotel in Seoul

Cheap car rent in Seoul

Cheapest return flights from Toronto to Seoul in December from $778

Return flights