Cheapest one-way flights from Seoul to Osaka in September from $60

AirHint found the following cheapest one-way flights from Seoul (GMP) to Osaka (KIX) in September 2025 (see full year).

One-Way flights

03 Sep Peach direct
10 Sep Jeju Air direct
22 Sep Jeju Air direct
09 Sep Jeju Air direct
11 Sep Jeju Air direct
08 Sep Jeju Air direct
14 Sep Jeju Air direct
18 Sep Jeju Air direct
07 Sep Jeju Air direct
13 Sep Asiana Airlines direct

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

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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