AirHint found the following cheapest one-way flights from Porto (OPO) to Kathmandu (KTM) in December 2025 (see full year).
One-Way flights
| 01 Dec | Ryanair | ||
| 08 Dec | Ryanair | ||
| 06 Dec | Iberia | ||
| 10 Dec | easyJet |
Also check the deals for return flights from Porto to Kathmandu in December.
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