Cheapest return flights from Ontario to Seoul in October from $991

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 October 2025 (see full year).

Return flights

20 Oct - 27 Oct China Airlines
14 Oct - 22 Oct China Airlines
22 Oct - 29 Oct China Airlines
20 Oct - 03 Nov China Airlines
01 Oct - 31 Oct China Airlines
09 Oct - 16 Oct China Airlines
01 Oct - 22 Nov China Airlines
24 Oct - 02 Nov China Airlines
16 Oct - 22 Oct China Airlines
01 Oct - 30 Oct China Airlines
14 Oct - 13 Nov China Airlines
22 Oct - 08 Nov China Airlines
25 Oct - 11 Nov China Airlines
13 Oct - 30 Oct China Airlines
20 Oct - 11 Nov China Airlines
27 Oct - 16 Nov China Airlines
23 Oct - 30 Oct China Airlines
20 Oct - 12 Nov China Airlines
15 Oct - 06 Nov China Airlines
18 Oct - 24 Oct China Airlines

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

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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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