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

Return flights

02 Sep - 02 Oct	SriLankan Airlines
10 Sep - 17 Sep	SriLankan Airlines
09 Sep - 17 Sep	SriLankan Airlines
09 Sep - 23 Oct	SriLankan Airlines
09 Sep - 22 Oct	SriLankan Airlines
17 Sep - 04 Oct	Air India
09 Sep - 16 Sep	Air India
15 Sep - 22 Sep	Air India
14 Sep - 19 Sep	Air India
07 Sep - 07 Oct	Air India
14 Sep - 28 Sep	Air India
10 Sep - 30 Sep	Air India
11 Sep - 30 Sep	Air India
13 Sep - 22 Sep	SriLankan Airlines
29 Sep - 18 Oct	AirAsia
13 Sep - 17 Sep	SriLankan Airlines
27 Sep - 18 Oct	AirAsia
30 Sep - 14 Oct	AirAsia
01 Sep - 01 Oct	Air India
27 Sep - 07 Oct	AirAsia

Also check the deals for one-way flights from Kuala Lumpur 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 Kuala Lumpur to Kathmandu in September from 207€

Return flights