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

Return flights

25 Aug - 01 Sep	Flair Airlines
23 Aug - 30 Aug	Flair Airlines
11 Aug - 18 Aug	Flair Airlines
24 Aug - 31 Aug	Porter Airlines (Canada) Ltd
02 Aug - 09 Aug	WestJet
31 Aug - 07 Sep	WestJet
27 Aug - 03 Sep	Flair Airlines
17 Aug - 24 Aug	Porter Airlines (Canada) Ltd
30 Aug - 06 Sep	WestJet
20 Aug - 27 Aug	Flair Airlines
18 Aug - 25 Aug	Flair Airlines
13 Aug - 20 Aug	WestJet
21 Aug - 28 Aug	Flair Airlines
28 Aug - 04 Sep	Flair Airlines
06 Aug - 13 Aug	Porter Airlines (Canada) Ltd
29 Aug - 05 Sep	Flair Airlines
26 Aug - 02 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 1027€

Return flights