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

Return flights

31 May - 11 Jun	WestJet
28 May - 11 Jun	WestJet
29 May - 14 Jun	WestJet
31 May - 07 Jun	Porter Airlines (Canada) Ltd
24 May - 07 Jun	WestJet
07 May - 18 Jun	Flair Airlines
10 May - 17 May	WestJet
21 May - 05 Jun	WestJet
21 May - 04 Jun	Flair Airlines
07 May - 28 May	WestJet
04 May - 11 May	Porter Airlines (Canada) Ltd
14 May - 31 May	WestJet
21 May - 02 Jun	WestJet
21 May - 01 Jun	WestJet
16 May - 30 May	Flair Airlines
03 May - 23 May	Flair Airlines
21 May - 28 May	Flair Airlines
08 May - 23 May	WestJet
14 May - 30 May	WestJet
03 May - 10 May	Flair Airlines

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 767€

Return flights