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

Return flights

30 Aug - 06 Sep	WestJet
27 Aug - 03 Sep	WestJet
13 Aug - 20 Aug	WestJet
20 Aug - 27 Aug	WestJet
25 Aug - 01 Sep	Air France
26 Aug - 02 Sep	Air France
24 Aug - 31 Aug	Air France
28 Aug - 04 Sep	Porter Airlines (Canada) Ltd
21 Aug - 28 Aug	Porter Airlines (Canada) Ltd
23 Aug - 30 Aug	WestJet
14 Aug - 21 Aug	WestJet
16 Aug - 23 Aug	WestJet
22 Aug - 29 Aug	WestJet
04 Aug - 11 Aug	Air France
01 Aug - 08 Aug	WestJet
29 Aug - 05 Sep	Air France

Also check the deals for one-way flights from Montreal to Seoul in August.

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 August from 1243€

Return flights