AirHint found the following cheapest return flights from Ontario (ONT) to Seoul (ICN) in November 2025 (see full year).

Return flights

09 Nov - 18 Nov	China Airlines
12 Nov - 19 Nov	China Airlines
05 Nov - 19 Nov	China Airlines
17 Nov - 21 Nov	China Airlines
02 Nov - 16 Nov	China Airlines
02 Nov - 25 Nov	China Airlines
05 Nov - 21 Nov	China Airlines
15 Nov - 23 Nov	China Airlines
04 Nov - 11 Nov	China Airlines
10 Nov - 19 Nov	China Airlines
23 Nov - 06 Dec	China Airlines
29 Nov - 08 Dec	China Airlines
27 Nov - 16 Dec	China Airlines
17 Nov - 08 Dec	China Airlines
15 Nov - 15 Dec	China Airlines
23 Nov - 08 Dec	China Airlines
23 Nov - 03 Dec	China Airlines
27 Nov - 02 Dec	China Airlines
25 Nov - 16 Dec	China Airlines
19 Nov - 20 Dec	China Airlines

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

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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Cheapest return flights from Ontario to Seoul in November from $945

Return flights