Cheapest return flights from Adelaide to Kathmandu in September from $729

Best time to book flights for Adelaide (ADL) to Kathmandu (KTM) flights at AirHint

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

Return flights

07 Sep - 14 Sep Singapore Airlines
07 Sep - 12 Sep Singapore Airlines
07 Sep - 15 Sep Singapore Airlines
01 Sep - 13 Oct Singapore Airlines
08 Sep - 03 Oct Singapore Airlines
25 Sep - 25 Oct Jetstar
24 Sep - 29 Oct Jetstar
29 Sep - 27 Oct Jetstar
23 Sep - 27 Oct Jetstar
24 Sep - 28 Oct Cathay Pacific
22 Sep - 28 Oct Cathay Pacific
16 Sep - 14 Oct Malaysia Airlines
15 Sep - 14 Oct Singapore Airlines

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

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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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