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

Return flights

30 Dec - 10 Jan	Air Canada
31 Dec - 16 Jan	Air Canada
24 Dec - 31 Dec	Korean Air
23 Dec - 10 Jan	WestJet
23 Dec - 09 Jan	WestJet
14 Dec - 28 Dec	United
22 Dec - 18 Jan	Air Canada
24 Dec - 10 Jan	WestJet
10 Dec - 05 Jan	WestJet
14 Dec - 29 Dec	United
22 Dec - 09 Jan	United
17 Dec - 15 Jan	WestJet
23 Dec - 03 Jan	WestJet
18 Dec - 27 Dec	WestJet
20 Dec - 30 Dec	Air Canada

Also check the deals for one-way flights from Calgary 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 Calgary to Seoul in December from $1037

Return flights