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

Return flights

07 Sep - 25 Sep	WestJet	direct
18 Sep - 26 Sep	WestJet	direct
05 Sep - 16 Oct	WestJet	direct
08 Sep - 15 Sep	Air Canada
06 Sep - 14 Sep	WestJet	direct
21 Sep - 10 Oct	Air Canada
14 Sep - 21 Sep	Air Canada
11 Sep - 21 Sep	Air Canada
12 Sep - 15 Sep	Air Canada
15 Sep - 22 Sep	Air Canada
29 Sep - 09 Oct	WestJet	direct
15 Sep - 26 Sep	WestJet
15 Sep - 26 Sep	WestJet	direct
24 Sep - 12 Oct	WestJet	direct
29 Sep - 12 Oct	WestJet	direct
28 Sep - 14 Oct	WestJet
22 Sep - 20 Oct	WestJet
05 Sep - 23 Oct	WestJet
22 Sep - 25 Oct	WestJet
30 Sep - 19 Oct	WestJet

Also check the deals for one-way flights from Calgary to Seoul in September.

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 September from $559

Return flights