Cheapest one-way flights from Seoul to Osaka in September from $169

Best time to book flights for Seoul (GMP) to Osaka (KIX) flights at AirHint

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

One-Way flights

25 Sep Asiana Airlines direct
28 Sep Asiana Airlines direct
29 Sep Asiana Airlines direct
06 Sep Korean Air direct
01 Sep Korean Air direct
18 Sep Korean Air direct
24 Sep Korean Air direct
22 Sep Korean Air direct
27 Sep Asiana Airlines direct
11 Sep Korean Air 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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