Cheapest one-way flights from Ontario to Seoul in April from 440€

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

One-Way flights

20 Apr Frontier Airlines
22 Apr Frontier Airlines
26 Apr China Airlines
24 Apr China Airlines
23 Apr China Airlines
14 Apr China Airlines
21 Apr China Airlines
28 Apr China Airlines
16 Apr China Airlines
29 Apr Alaska 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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