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

Return flights

07 May - 14 May	Flair Airlines
02 May - 09 May	WestJet
03 May - 10 May	WestJet
30 May - 11 Jun	WestJet
21 May - 28 May	Flair Airlines
10 May - 31 May	WestJet
31 May - 07 Jun	WestJet
30 May - 06 Jun	WestJet
31 May - 11 Jun	WestJet
16 May - 12 Jun	WestJet
10 May - 24 May	WestJet
19 May - 26 May	WestJet
05 May - 12 May	Flair Airlines
12 May - 19 May	Porter Airlines (Canada) Ltd
26 May - 29 Jun	WestJet
20 May - 14 Jun	WestJet
06 May - 13 May	Porter Airlines (Canada) Ltd
03 May - 05 Jun	WestJet
17 May - 13 Jun	WestJet
20 May - 05 Jun	WestJet

Also check the deals for one-way flights from Montreal 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 Montreal to Seoul in May from 792€

Return flights