AirHint found the following cheapest return flights from Riyadh (RUH) to Kathmandu (KTM) in September 2026 (see full year).
Return flights
| 10 Sep - 08 Oct | Kuwait Airways | ||
| 08 Sep - 06 Oct | flydubai | ||
| 10 Sep - 10 Sep | IndiGo | ||
| 08 Sep - 08 Sep | IndiGo |
Also check the deals for one-way flights from Riyadh to Kathmandu in September.
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