Cheapest return flights from Ontario to Seoul in March from $1121
AirHint found the following cheapest return flights from Ontario (ONT) to Seoul (ICN) in March 2026 (see full year).
Return flights
Also check the deals for one-way flights from Ontario to Seoul in March.
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.
