AirHint found the following cheapest return flights from Auckland (AKL) to Kathmandu (KTM) in September 2025 (see full year).

Return flights

12 Sep - 15 Sep	Cathay Pacific
06 Sep - 13 Sep	Qantas
03 Sep - 05 Oct	Malaysia Airlines
27 Sep - 28 Oct	Qatar Airways
02 Sep - 04 Oct	Singapore Airlines
04 Sep - 04 Oct	Singapore Airlines
22 Sep - 13 Oct	China Southern
01 Sep - 04 Oct	Singapore Airlines
26 Sep - 31 Oct	Qatar Airways
10 Sep - 04 Oct	Singapore Airlines
27 Sep - 25 Oct	China Southern
27 Sep - 24 Oct	China Southern

Also check the deals for one-way flights from Auckland 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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Cheapest return flights from Auckland to Kathmandu in September from $1213

Return flights