Cheapest return flights from Bangkok to Kathmandu in September from $276

Best time to book flights for Bangkok (DMK) to Kathmandu (KTM) flights at AirHint

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

Return flights

08 Sep - 26 Sep Thai AirAsia direct
10 Sep - 26 Sep Thai AirAsia direct
15 Sep - 26 Sep Thai AirAsia direct
26 Sep - 08 Oct Thai AirAsia direct
12 Sep - 26 Sep Thai AirAsia direct
17 Sep - 26 Sep Thai AirAsia direct
17 Sep - 06 Oct Thai AirAsia direct
26 Sep - 06 Oct Thai AirAsia direct
05 Sep - 14 Sep Thai AirAsia direct
21 Sep - 08 Oct Thai AirAsia direct
08 Sep - 14 Sep Thai AirAsia direct
08 Sep - 24 Sep Thai AirAsia direct
01 Sep - 14 Sep Thai AirAsia direct
28 Sep - 17 Oct Thai AirAsia direct
28 Sep - 08 Oct Thai AirAsia direct
10 Sep - 14 Sep Thai AirAsia direct
21 Sep - 06 Oct Thai AirAsia direct
29 Sep - 17 Oct Thai AirAsia direct
29 Sep - 08 Oct Thai AirAsia direct
28 Sep - 06 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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