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

Return flights

02 Sep - 07 Sep	Air India
04 Sep - 11 Sep	Thai Lion Air
28 Sep - 05 Oct	Air India
27 Sep - 03 Oct	Air India
16 Sep - 24 Sep	Air India
03 Sep - 14 Sep	Thai AirAsia
08 Sep - 15 Sep	Air India
22 Sep - 25 Sep	Air India
01 Sep - 05 Sep	Thai AirAsia
05 Sep - 13 Sep	Thai Airways
04 Sep - 13 Sep	Thai Airways
23 Sep - 28 Sep	Singapore Airlines
24 Sep - 02 Oct	China Southern

Also check the deals for one-way flights from Kathmandu to Denpasar 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 Kathmandu to Denpasar in September from 385€

Return flights