Cheapest return flights from Ontario (ONT) to Seoul (ICN), August

Select a price to book. see full year.

Dates, airline, and price
Dates Airline Price
05 Aug 27 Aug Frontier Airlines
14 Aug 31 Aug China Airlines
18 Aug 31 Aug China Airlines
10 Aug 21 Aug China Airlines
04 Aug 20 Aug China Airlines
04 Aug 18 Aug China Airlines
26 Aug 16 Sep China Airlines
14 Aug 12 Sep China Airlines
11 Aug 15 Sep China Airlines
04 Aug 28 Aug China Airlines
31 Aug 14 Sep China Airlines
02 Aug 15 Aug China Airlines
26 Aug 01 Sep China Airlines
25 Aug 01 Sep China Airlines
05 Aug 21 Aug China Airlines
19 Aug 31 Aug China Airlines
05 Aug 25 Sep China Airlines
12 Aug 25 Sep China Airlines
12 Aug 26 Sep China Airlines
12 Aug 27 Sep China Airlines
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deals for one-way flights from Ontario to Seoul in August.

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Updated Jul 7, 2026.

About these fares

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