Cheapest return flights from Ontario to Seoul in August from $1149

Best time to book flights for Ontario (ONT) to Seoul (ICN) flights at AirHint

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

Return flights

15 Aug - 31 Aug China Airlines
28 Aug - 02 Sep China Airlines
29 Aug - 02 Sep China Airlines
11 Aug - 18 Aug China Airlines
10 Aug - 10 Sep China Airlines
16 Aug - 15 Sep China Airlines
29 Aug - 05 Sep China Airlines
05 Aug - 12 Aug China Airlines
16 Aug - 24 Aug China Airlines
05 Aug - 22 Aug China Airlines
10 Aug - 18 Aug China Airlines
10 Aug - 17 Aug China Airlines
02 Aug - 16 Aug China Airlines
01 Aug - 08 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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