Cheapest return flights from Bangkok to Kathmandu in September from $229

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

Return flights

05 Sep - 11 Sep Thai AirAsia direct
05 Sep - 08 Sep Thai AirAsia direct
04 Sep - 11 Sep Thai AirAsia direct
04 Sep - 08 Sep Thai AirAsia direct
06 Sep - 11 Sep Thai AirAsia direct
10 Sep - 11 Sep Thai AirAsia direct
06 Sep - 08 Sep Thai AirAsia direct
02 Sep - 11 Sep Thai AirAsia direct
02 Sep - 08 Sep Thai AirAsia direct
02 Sep - 04 Sep Thai AirAsia direct
19 Sep - 09 Oct Thai AirAsia direct
19 Sep - 05 Oct Thai AirAsia direct
19 Sep - 04 Oct Thai AirAsia direct
25 Sep - 05 Oct Thai AirAsia direct
16 Sep - 04 Oct Thai AirAsia direct
18 Sep - 04 Oct Thai AirAsia direct
15 Sep - 04 Oct Thai AirAsia direct
20 Sep - 05 Oct Thai AirAsia direct
20 Sep - 09 Oct Thai AirAsia direct
24 Sep - 09 Oct Thai AirAsia direct

Also check the deals for one-way flights from Bangkok 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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