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

Select a price to book. see full year.

Dates, airline, and price
Dates Airline Price
06 Oct 27 Oct Frontier Airlines
02 Oct 04 Oct Frontier Airlines
21 Oct 02 Nov China Airlines
14 Oct 02 Nov China Airlines
16 Oct 20 Nov China Airlines
14 Oct 21 Oct China Airlines
02 Oct 18 Oct China Airlines
05 Oct 10 Oct China Airlines
09 Oct 18 Oct China Airlines
11 Oct 18 Oct China Airlines
19 Oct 29 Oct China Airlines
12 Oct 19 Oct China Airlines
09 Oct 19 Oct China Airlines
27 Oct 03 Nov China Airlines
26 Oct 20 Nov China Airlines
19 Oct 04 Nov China Airlines
26 Oct 12 Nov China Airlines
31 Oct 13 Nov China Airlines
12 Oct 02 Nov China Airlines
15 Oct 09 Nov China Airlines
Powered by

deals for one-way flights from Ontario to Seoul in October.

Book a cheap hotel in Seoul

Cheap car rent in Incheon Intl

Updated Jul 8, 2026.

About these fares

These results come from our latest search across airlines for your currency. Prices change quickly and are not locked until you complete booking—always confirm the total and fare rules on the partner site.

Feel free to contact us with any feedback or request another flight research.