AirHint found the following cheapest return flights from Montreal (YUL) to Seoul (ICN) in July 2025 (see full year).

Return flights

26 Jul - 19 Aug	WestJet
24 Jul - 19 Aug	WestJet
24 Jul - 31 Jul	Air France
22 Jul - 05 Aug	Air France
24 Jul - 12 Aug	WestJet
22 Jul - 26 Aug	WestJet
28 Jul - 04 Aug	WestJet
18 Jul - 24 Jul	WestJet
26 Jul - 15 Aug	WestJet
25 Jul - 13 Aug	WestJet
25 Jul - 14 Aug	WestJet
29 Jul - 05 Aug	Air France
21 Jul - 25 Jul	Porter Airlines (Canada) Ltd
21 Jul - 28 Jul	Air France
22 Jul - 29 Jul	Air France
27 Jul - 29 Jul	WestJet
18 Jul - 22 Jul	WestJet
20 Jul - 27 Jul	Air France
24 Jul - 30 Jul	Air France
23 Jul - 30 Jul	Air France

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

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 July from 1106€

Return flights