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

Return flights

05 Sep - 12 Sep	WestJet
24 Sep - 10 Oct	WestJet
24 Sep - 12 Oct	WestJet
05 Sep - 07 Oct	WestJet
20 Sep - 18 Oct	WestJet
19 Sep - 18 Oct	WestJet
10 Sep - 25 Sep	WestJet
03 Sep - 15 Sep	WestJet
06 Sep - 07 Oct	WestJet
14 Sep - 19 Sep	WestJet
10 Sep - 20 Sep	WestJet
10 Sep - 21 Sep	WestJet
03 Sep - 16 Oct	WestJet
19 Sep - 25 Sep	WestJet
13 Sep - 21 Sep	WestJet
05 Sep - 21 Sep	WestJet
20 Sep - 27 Sep	WestJet
19 Sep - 17 Oct	WestJet
29 Sep - 11 Oct	WestJet
24 Sep - 24 Oct	WestJet

Also check the deals for one-way flights from Hamilton to Seoul in September.

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 September from $765

Return flights