AirHint found the following cheapest return flights from Kathmandu (KTM) to Osaka (KIX) in December 2025 (see full year).
Return flights
| 10 Dec - 15 Jan | Thai AirAsia | ||
| 24 Dec - 08 Jan | Thai AirAsia | ||
| 28 Dec - 16 Jan | China Southern | ||
| 03 Dec - 10 Dec | Thai Airways |
Also check the deals for one-way flights from Kathmandu to Osaka in December.
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