Cheapest one-way flights from Ontario to Seoul in January from $429

AirHint found the following cheapest one-way flights from Ontario (ONT) to Seoul (ICN) in January 2026 (see full year).

One-Way flights

23 Jan Alaska Airlines
16 Jan Alaska Airlines
29 Jan Alaska Airlines
22 Jan Alaska Airlines
30 Jan Alaska Airlines
25 Jan Alaska Airlines
18 Jan Alaska Airlines
24 Jan Hawaiian Airlines
20 Jan Hawaiian Airlines
31 Jan Hawaiian Airlines

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

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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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