AirHint found the following cheapest return flights from Raleigh-durham (RDU) to Kathmandu (KTM) in September 2025 (see full year).
Return flights
08 Sep - 08 Oct | Spirit Airlines | ||
23 Sep - 12 Oct | Frontier Airlines | ||
26 Sep - 10 Oct | Spirit Airlines | ||
27 Sep - 27 Oct | Qatar Airways |
Also check the deals for one-way flights from Raleigh-durham to Kathmandu in September.
The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.
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