AirHint found the following cheapest one-way flights from Kathmandu (KTM) to Lisbon (LIS) in December 2025 (see full year).
One-Way flights
| 15 Dec | IndiGo | ||
| 09 Dec | IndiGo | ||
| 13 Dec | IndiGo | ||
| 05 Dec | IndiGo | ||
| 08 Dec | IndiGo | ||
| 03 Dec | IndiGo | ||
| 12 Dec | IndiGo | ||
| 17 Dec | IndiGo | ||
| 01 Dec | IndiGo | ||
| 14 Dec | IndiGo |
Also check the deals for return flights from Kathmandu to Lisbon in December.
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