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

Return flights

15 May - 04 Jun	WestJet
25 May - 12 Jun	Flair Airlines
07 May - 01 Jun	WestJet
16 May - 07 Jun	WestJet
22 May - 05 Jun	WestJet
21 May - 01 Jun	WestJet
09 May - 07 Jun	WestJet
25 May - 07 Jun	Flair Airlines
01 May - 01 Jun	WestJet
21 May - 09 Jun	WestJet
10 May - 26 May	WestJet
05 May - 19 May	Flair Airlines
08 May - 21 May	WestJet
11 May - 18 May	Flair Airlines
09 May - 24 May	WestJet
08 May - 24 May	WestJet
10 May - 23 May	WestJet
15 May - 21 May	WestJet
16 May - 21 May	WestJet
02 May - 16 May	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 $716

Return flights