AirHint found the following cheapest return flights from Kathmandu (KTM) to Taipei (TPE) in December 2025 (see full year).
Return flights
| 01 Dec - 15 Dec | Thai Lion Air | ||
| 08 Dec - 22 Dec | Thai Lion Air | ||
| 25 Dec - 31 Dec | Thai Airways |
Also check the deals for one-way flights from Kathmandu to Taipei in December.
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