Cheapest one-way flights from Ontario to Seoul in April from $394

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 April 2025 (see full year).

One-Way flights

25 Apr Frontier Airlines
07 Apr Frontier Airlines
27 Apr Frontier Airlines
06 Apr Frontier Airlines
28 Apr Frontier Airlines
13 Apr Frontier Airlines
19 Apr Frontier Airlines
21 Apr Frontier Airlines
14 Apr Frontier Airlines
12 Apr Frontier Airlines

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

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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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