Cheapest return flights from Ontario to Seoul in June from $1296

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

Return flights

18 Jun - 28 Jun Alaska Airlines
17 Jun - 28 Jun Alaska Airlines
04 Jun - 18 Jun Alaska Airlines
26 Jun - 29 Jul Alaska Airlines
10 Jun - 08 Jul China Airlines
14 Jun - 28 Jun China Airlines
16 Jun - 12 Jul China Airlines
06 Jun - 15 Jun Qatar Airways

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

Skyscanner

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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