Cheapest one-way flights from Ontario to Seoul in May from $592

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 May 2025 (see full year).

One-Way flights

01 May China Airlines
07 May China Airlines
06 May China Airlines
08 May China Airlines
15 May Hawaiian Airlines
09 May China Airlines
03 May China Airlines
04 May China Airlines
02 May China Airlines
11 May China Airlines

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

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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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