AirHint found the following cheapest return flights from Calgary (YYC) to Seoul (ICN) in May 2026 (see full year).

Return flights

31 May - 15 Jun	WestJet	direct
26 May - 22 Jun	Air Canada
02 May - 17 May	WestJet	direct
11 May - 18 May	Air Canada
26 May - 10 Jun	Air Canada
26 May - 15 Jun	Air Canada
20 May - 25 May	Air Canada
10 May - 30 May	Air Canada
08 May - 16 May	Air Canada
03 May - 23 May	Air Canada
03 May - 09 May	Air Canada
26 May - 09 Jun	WestJet
26 May - 21 Jun	WestJet
26 May - 07 Jun	WestJet
11 May - 31 May	Air Canada
26 May - 02 Jun	Air Canada
08 May - 16 May	WestJet	direct
13 May - 29 May	WestJet
26 May - 05 Jun	Air Canada

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

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 May from $607

Return flights