AirHint found the following cheapest one-way flights from Seoul (GMP) to Osaka (KIX) in March 2026 (see full year).

One-Way flights

15 Mar	Asiana Airlines	direct
02 Mar	Asiana Airlines	direct
19 Mar	Asiana Airlines	direct
07 Mar	Asiana Airlines	direct
11 Mar	Asiana Airlines	direct
06 Mar	Asiana Airlines	direct
09 Mar	Asiana Airlines	direct
31 Mar	Asiana Airlines	direct
05 Mar	Asiana Airlines	direct
17 Mar	Asiana Airlines	direct

Also check the deals for return flights from Seoul to Osaka 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.

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Cheapest one-way flights from Seoul to Osaka in March from $170

One-Way flights