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

Return flights

04 Sep - 18 Sep	Thai AirAsia
04 Sep - 22 Sep	Thai AirAsia
04 Sep - 19 Sep	Thai AirAsia
04 Sep - 07 Sep	Thai AirAsia
12 Sep - 18 Sep	Thai AirAsia
12 Sep - 22 Sep	Thai AirAsia
03 Sep - 18 Sep	Thai AirAsia
03 Sep - 22 Sep	Thai AirAsia
08 Sep - 18 Sep	Thai AirAsia
08 Sep - 22 Sep	Thai AirAsia
25 Sep - 16 Oct	Thai AirAsia
26 Sep - 03 Oct	Air India
24 Sep - 14 Oct	Thai AirAsia
25 Sep - 14 Oct	Thai AirAsia
30 Sep - 16 Oct	Thai AirAsia
24 Sep - 05 Oct	Thai AirAsia
25 Sep - 05 Oct	Thai AirAsia
24 Sep - 08 Oct	Thai AirAsia
25 Sep - 08 Oct	Thai AirAsia
27 Sep - 16 Oct	Thai AirAsia

Also check the deals for one-way flights from Kathmandu to Kuala Lumpur 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 Kuala Lumpur in September from $380

Return flights