Cheapest return flights from Ontario to Seoul in April from $1004

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

Return flights

22 Apr - 29 Apr China Airlines
22 Apr - 28 May China Airlines
20 Apr - 05 May China Airlines
21 Apr - 28 Apr China Airlines
10 Apr - 26 Apr China Airlines
24 Apr - 10 May China Airlines
26 Apr - 26 May China Airlines
12 Apr - 28 Apr China Airlines
11 Apr - 26 Apr China Airlines
21 Apr - 09 May China Airlines
05 Apr - 22 Apr China Airlines
01 Apr - 11 Apr China Airlines

Also check the deals for one-way 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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