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

Return flights

17 Oct - 24 Oct	WestJet
26 Oct - 09 Nov	Porter Airlines (Canada) Ltd
16 Oct - 28 Oct	Porter Airlines (Canada) Ltd
01 Oct - 15 Oct	Porter Airlines (Canada) Ltd
01 Oct - 08 Oct	WestJet
16 Oct - 24 Oct	WestJet
09 Oct - 21 Oct	WestJet
09 Oct - 20 Oct	WestJet

Also check the deals for one-way flights from Ottawa 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 Ottawa to Seoul in October from $860

Return flights