AirHint found the following cheapest return flights from Perth (PER) to Kathmandu (KTM) in September 2026 (see full year).
Return flights
| 13 Sep - 19 Sep | Singapore Airlines | ||
| 22 Sep - 09 Oct | Cathay Pacific | ||
| 12 Sep - 19 Sep | Cathay Pacific | ||
| 20 Sep - 08 Oct | Cathay Pacific | ||
| 26 Sep - 10 Oct | Cathay Pacific |
Also check the deals for one-way flights from Perth to Kathmandu in September.
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