AirHint found the following cheapest return flights from Denver (DEN) to Kathmandu (KTM) in October 2025 (see full year).
Return flights
| 22 Oct - 15 Nov | Frontier Airlines | ||
| 24 Oct - 09 Nov | Frontier Airlines | ||
| 20 Oct - 27 Oct | Qatar Airways | ||
| 17 Oct - 29 Oct | Lufthansa | ||
| 21 Oct - 29 Oct | Frontier Airlines | ||
| 25 Oct - 14 Nov | Qatar Airways |
Also check the deals for one-way flights from Denver to Kathmandu in October.
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