Cheapest return flights from Ontario to Seoul in April from $910

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

Return flights

15 Apr - 10 May China Airlines
30 Apr - 30 May China Airlines
20 Apr - 31 May China Airlines
21 Apr - 31 May China Airlines
10 Apr - 17 Apr China Airlines
18 Apr - 26 Apr China Airlines
10 Apr - 26 Apr China Airlines
06 Apr - 13 Apr China Airlines
05 Apr - 18 Apr China Airlines
30 Apr - 20 May China Airlines
09 Apr - 19 Apr China Airlines
06 Apr - 18 Apr China Airlines
07 Apr - 10 Apr China Airlines
19 Apr - 11 May China Airlines
03 Apr - 14 Apr China Airlines
01 Apr - 24 Apr China Airlines
01 Apr - 29 May China Airlines
19 Apr - 02 May China Airlines
17 Apr - 03 May Qatar Airways

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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