AirHint found the following cheapest return flights from Ottawa (YOW) to Kathmandu (KTM) in December 2025 (see full year).
Return flights
| 28 Dec - 29 Jan | Cathay Pacific | ||
| 27 Dec - 26 Jan | Cathay Pacific | ||
| 30 Dec - 26 Jan | WestJet | ||
| 31 Dec - 07 Jan | Porter Airlines (Canada) Ltd |
Also check the deals for one-way flights from Ottawa to Kathmandu in December.
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