Cheapest return SYD–KTM flights, September

AirHint found the following cheapest return flights from Sydney (SYD) to Kathmandu (KTM) in September 2026 (see full year).

Return flights

05 Sep - 21 Sep Singapore Airlines
02 Sep - 16 Sep Singapore Airlines
04 Sep - 20 Sep Singapore Airlines
01 Sep - 25 Sep Singapore Airlines
01 Sep - 30 Sep Singapore Airlines
01 Sep - 01 Oct Singapore Airlines
17 Sep - 21 Oct Singapore Airlines
02 Sep - 30 Oct Singapore Airlines
04 Sep - 30 Oct Singapore Airlines
18 Sep - 16 Oct Singapore Airlines
17 Sep - 19 Oct Singapore Airlines
18 Sep - 21 Oct Singapore Airlines
18 Sep - 19 Oct Singapore Airlines
27 Sep - 12 Oct SriLankan Airlines
02 Sep - 31 Oct Sichuan Airlines
09 Sep - 16 Sep IndiGo
11 Sep - 28 Sep IndiGo

Also check the deals for one-way flights from Sydney to Kathmandu in September.

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