Cheapest return flights from Ontario to Seoul in August from $936

AirHint found the following cheapest return flights from Ontario (ONT) to Seoul (ICN) in August 2025 (see full year).

Return flights

19 Aug - 31 Aug China Airlines
26 Aug - 01 Sep China Airlines
12 Aug - 25 Aug China Airlines
11 Aug - 26 Aug China Airlines
04 Aug - 02 Sep China Airlines
26 Aug - 09 Sep China Airlines
25 Aug - 01 Sep China Airlines
27 Aug - 02 Sep China Airlines
27 Aug - 03 Sep China Airlines
19 Aug - 26 Aug China Airlines
06 Aug - 24 Aug China Airlines
14 Aug - 27 Aug China Airlines
26 Aug - 11 Sep China Airlines
25 Aug - 07 Sep China Airlines
28 Aug - 14 Sep China Airlines
18 Aug - 27 Aug China Airlines
05 Aug - 03 Sep China Airlines
14 Aug - 30 Aug China Airlines
03 Aug - 28 Aug China Airlines
23 Aug - 31 Aug China Airlines

Also check the deals for one-way flights from Ontario to Seoul in August.

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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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