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

Return flights

19 Oct - 23 Oct	WestJet
19 Oct - 25 Oct	WestJet
17 Oct - 24 Oct	WestJet
22 Oct - 04 Nov	Flair Airlines
31 Oct - 02 Nov	WestJet
02 Oct - 17 Oct	WestJet
03 Oct - 06 Oct	WestJet
16 Oct - 28 Oct	WestJet
04 Oct - 11 Oct	WestJet
17 Oct - 26 Oct	WestJet
28 Oct - 20 Nov	Air France
28 Oct - 04 Nov	Air France
20 Oct - 04 Nov	Air France
21 Oct - 01 Nov	Turkish Airlines
21 Oct - 27 Oct	Turkish Airlines
06 Oct - 20 Oct	WestJet
24 Oct - 03 Nov	KLM
31 Oct - 17 Nov	Etihad Airways
31 Oct - 18 Nov	Etihad Airways
04 Oct - 24 Nov	KLM

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

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 October from 760€

Return flights