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

Return flights

03 Oct - 12 Oct	WestJet	direct
03 Oct - 18 Oct	WestJet	direct
01 Oct - 09 Oct	WestJet
03 Oct - 10 Oct	Air Canada
01 Oct - 22 Oct	WestJet
01 Oct - 15 Oct	WestJet
01 Oct - 07 Oct	WestJet
02 Oct - 10 Oct	Air Canada
01 Oct - 10 Oct	WestJet	direct
02 Oct - 17 Oct	WestJet	direct
19 Oct - 08 Nov	WestJet
14 Oct - 01 Nov	WestJet
19 Oct - 01 Nov	WestJet
18 Oct - 02 Nov	WestJet
19 Oct - 03 Nov	WestJet
25 Oct - 24 Nov	United
06 Oct - 03 Nov	United
25 Oct - 01 Nov	Air Canada

Also check the deals for one-way flights from Calgary 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 Calgary to Seoul in October from $561

Return flights