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

Select a price to book. see full year.

Dates, airline, and price
Dates Airline Price
06 Sep 12 Sep Frontier Airlines
08 Sep 21 Sep China Airlines
08 Sep 28 Oct Qatar Airways
09 Sep 05 Oct China Airlines
19 Sep 26 Sep China Airlines
01 Sep 10 Sep China Airlines
28 Sep 13 Oct China Airlines
01 Sep 11 Sep China Airlines
25 Sep 30 Sep China Airlines
20 Sep 14 Oct China Airlines
20 Sep 15 Oct China Airlines
15 Sep 15 Oct China Airlines
20 Sep 20 Oct China Airlines
28 Sep 14 Oct China Airlines
14 Sep 14 Oct China Airlines
01 Sep 01 Oct China Airlines
04 Sep 14 Sep China Airlines
05 Sep 20 Sep China Airlines
07 Sep 14 Sep China Airlines
01 Sep 15 Sep China Airlines
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deals for one-way flights from Ontario to Seoul in September.

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Updated Jul 10, 2026.

About these fares

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