Cheapest return flights from Ontario to Seoul in June from $1096

AirHint found the following cheapest return flights from Ontario (ONT) to Seoul (ICN) in June 2026 (see full year).

Return flights

10 Jun - 21 Jun Frontier Airlines
09 Jun - 21 Jun Frontier Airlines
07 Jun - 18 Jun China Airlines
09 Jun - 17 Jun China Airlines
10 Jun - 17 Jun China Airlines
03 Jun - 14 Jun China Airlines
01 Jun - 14 Jun China Airlines
05 Jun - 14 Jun China Airlines
03 Jun - 18 Jun China Airlines
03 Jun - 17 Jun China Airlines
10 Jun - 08 Jul China Airlines
15 Jun - 15 Jul China Airlines
01 Jun - 31 Jul China Airlines
19 Jun - 12 Jul China Airlines
19 Jun - 06 Jul China Airlines
11 Jun - 07 Jul China Airlines
16 Jun - 06 Jul China Airlines
15 Jun - 06 Jul China Airlines
12 Jun - 06 Jul China Airlines
13 Jun - 06 Jul China Airlines

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

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