Cheapest one-way flights from Seoul to Osaka in May from $165

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

One-Way flights

29 May Korean Air direct
19 May Asiana Airlines direct
09 May Asiana Airlines direct
14 May Asiana Airlines direct
15 May Asiana Airlines direct
04 May Korean Air direct
01 May Korean Air direct

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

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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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