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

Return flights

03 Dec - 10 Dec	WestJet
10 Dec - 23 Dec	WestJet
05 Dec - 19 Dec	WestJet
30 Dec - 13 Jan	Air Canada
25 Dec - 17 Jan	WestJet
10 Dec - 19 Dec	WestJet
04 Dec - 07 Jan	WestJet
23 Dec - 19 Jan	WestJet
26 Dec - 14 Jan	WestJet
03 Dec - 07 Jan	WestJet
04 Dec - 06 Jan	WestJet
10 Dec - 31 Dec	WestJet
24 Dec - 11 Jan	WestJet
16 Dec - 05 Jan	Air Canada
31 Dec - 31 Jan	Delta
15 Dec - 31 Dec	WestJet
17 Dec - 31 Dec	WestJet

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 738€

Return flights