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

Return flights

01 May - 28 May	Flair Airlines
02 May - 30 May	WestJet
02 May - 20 May	WestJet
01 May - 21 May	Flair Airlines
10 May - 20 May	WestJet
14 May - 24 May	Flair Airlines
15 May - 30 May	WestJet
28 May - 04 Jun	Flair Airlines
07 May - 01 Jun	Porter Airlines (Canada) Ltd
15 May - 25 May	WestJet
18 May - 30 Jun	EVA Air
28 May - 28 Jun	Flair Airlines
19 May - 26 May	EVA Air
11 May - 25 May	EVA Air
01 May - 06 Jun	EVA Air
26 May - 04 Jun	EVA Air
25 May - 12 Jun	Etihad Airways
25 May - 04 Jun	Turkish Airlines
25 May - 15 Jun	WestJet

Also check the deals for one-way flights from Toronto 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 Toronto to Seoul in May from $866

Return flights