Cheapest return flights from Ontario to Seoul in December from $1322

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 December 2025 (see full year).

Return flights

01 Dec - 08 Dec China Airlines
01 Dec - 14 Dec China Airlines
05 Dec - 12 Dec China Airlines
28 Dec - 25 Jan China Airlines
10 Dec - 01 Jan China Airlines
28 Dec - 13 Jan China Airlines
25 Dec - 11 Jan China Airlines
25 Dec - 06 Jan China Airlines
23 Dec - 11 Jan China Airlines
20 Dec - 30 Dec Korean Air
28 Dec - 04 Jan China Airlines
26 Dec - 04 Jan China Airlines
13 Dec - 04 Jan China Airlines
12 Dec - 04 Jan China Airlines

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

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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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