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

One-Way flights

22 Jan	Jin Air	direct
27 Jan	Jin Air	direct
30 Jan	Peach	direct
20 Jan	Peach	direct
16 Jan	Aero K Airlines	direct
25 Jan	Peach	direct
14 Jan	Peach	direct
17 Jan	Peach	direct
15 Jan	Peach	direct
23 Jan	Peach	direct

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

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 January from 42€

One-Way flights