Cheapest one-way flights from Ontario to Seoul in September from $554

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

02 Sep Hawaiian Airlines
23 Sep Hawaiian Airlines
12 Sep Hawaiian Airlines
13 Sep China Airlines
03 Sep China Airlines
30 Sep China Airlines
25 Sep China Airlines
04 Sep China Airlines
26 Sep China Airlines
21 Sep China Airlines

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

Skyscanner

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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