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

Return flights

20 Aug - 21 Sep	WestJet
14 Aug - 20 Sep	WestJet
31 Aug - 11 Sep	WestJet
21 Aug - 20 Sep	WestJet
21 Aug - 22 Sep	Air Canada
21 Aug - 23 Sep	Air Canada
13 Aug - 24 Aug	WestJet
18 Aug - 25 Aug	WestJet
13 Aug - 26 Aug	WestJet
13 Aug - 25 Aug	WestJet
14 Aug - 25 Aug	WestJet
23 Aug - 01 Sep	WestJet
31 Aug - 11 Sep	WestJet	direct
13 Aug - 27 Aug	WestJet
13 Aug - 19 Aug	WestJet
27 Aug - 01 Sep	WestJet
19 Aug - 26 Aug	WestJet
13 Aug - 20 Aug	WestJet
13 Aug - 23 Aug	WestJet
25 Aug - 01 Sep	United

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

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 August from $769

Return flights