Cheapest one-way flights from Ontario to Seoul in September from $576

Best time to book flights for Ontario (ONT) to Seoul (ICN) flights at AirHint

AirHint found the following cheapest one-way flights from Ontario (ONT) to Seoul (ICN) in September 2025 (see full year).

One-Way flights

23 Sep China Airlines
30 Sep China Airlines
10 Sep China Airlines
29 Sep China Airlines
24 Sep China Airlines
17 Sep China Airlines
20 Sep China Airlines
07 Sep China Airlines
05 Sep China Airlines
19 Sep China Airlines

Also check the deals for return flights from Ontario to Seoul in September.

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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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