AirHint found the following cheapest one-way flights from Seoul (GMP) to Osaka (KIX) in December 2026 (see full year).
One-Way flights
| 06 Dec | Korean Air | direct | |
| 02 Dec | Korean Air | direct | |
| 29 Dec | Korean Air | direct | |
| 22 Dec | Korean Air | direct | |
| 23 Dec | Korean Air | direct | |
| 21 Dec | Korean Air | direct | |
| 25 Dec | Japan Airlines | ||
| 25 Dec | Korean Air | direct |
Also check the deals for return flights from Seoul to Osaka in December.
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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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