Cheapest return BKK–KTM flights, September

AirHint found the following cheapest return flights from Bangkok (BKK) to Kathmandu (KTM) in September 2026 (see full year).

Return flights

02 Sep - 30 Sep Thai AirAsia direct
30 Sep - 30 Oct Thai AirAsia direct
06 Sep - 02 Oct Thai AirAsia direct
04 Sep - 31 Oct Thai AirAsia direct
04 Sep - 02 Oct Thai AirAsia direct
04 Sep - 11 Sep Thai AirAsia direct
06 Sep - 23 Sep Thai AirAsia direct
30 Sep - 09 Oct Thai AirAsia direct
30 Sep - 07 Oct Thai AirAsia direct
21 Sep - 28 Sep Thai AirAsia direct
20 Sep - 28 Sep Thai AirAsia direct
05 Sep - 23 Sep Thai VietJet Air
07 Sep - 10 Sep Thai VietJet Air
05 Sep - 08 Sep Thai VietJet Air
19 Sep - 27 Sep SriLankan Airlines
19 Sep - 28 Sep SriLankan Airlines

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

Powered by

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.

Book a cheap hotel in Kathmandu

Cheap car rent in Kathmandu

Feel free to contact us with any feedback or request another flight research.