Cheapest one-way flights from Ontario to Seoul in May from $427

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

04 May Frontier Airlines
02 May Frontier Airlines
03 May Frontier Airlines
01 May Frontier Airlines
07 May China Airlines
12 May China Airlines
08 May China Airlines
09 May China Airlines
18 May Alaska Airlines
17 May Alaska Airlines

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

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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