AirHint found the following cheapest return flights from Hamilton (YHM) to Seoul (ICN) in August 2025 (see full year).

Return flights

24 Aug - 08 Sep	WestJet
24 Aug - 13 Sep	WestJet
31 Aug - 21 Sep	WestJet
29 Aug - 05 Sep	WestJet
25 Aug - 14 Sep	WestJet
30 Aug - 06 Sep	WestJet
06 Aug - 12 Aug	Porter Airlines (Canada) Ltd
10 Aug - 14 Aug	WestJet
11 Aug - 18 Aug	Porter Airlines (Canada) Ltd
21 Aug - 07 Sep	WestJet
21 Aug - 04 Sep	Porter Airlines (Canada) Ltd
01 Aug - 07 Sep	WestJet
17 Aug - 04 Sep	WestJet
24 Aug - 31 Aug	WestJet
01 Aug - 08 Aug	WestJet
01 Aug - 03 Aug	WestJet
04 Aug - 17 Aug	WestJet
14 Aug - 17 Aug	WestJet
03 Aug - 24 Aug	WestJet
10 Aug - 24 Aug	WestJet

Also check the deals for one-way flights from Hamilton 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 Hamilton to Seoul in August from 833€

Return flights