Cheapest return flights from Bangkok to Kathmandu in December from $223

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

Return flights

03 Dec - 15 Dec Thai AirAsia direct
03 Dec - 10 Dec Thai AirAsia direct
01 Dec - 07 Dec Thai AirAsia direct
24 Dec - 04 Jan Thai AirAsia direct
24 Dec - 07 Jan Thai AirAsia direct
01 Dec - 14 Dec Thai AirAsia direct
01 Dec - 08 Dec Thai AirAsia direct
22 Dec - 04 Jan Thai AirAsia direct
22 Dec - 07 Jan Thai AirAsia direct
17 Dec - 04 Jan Thai AirAsia direct
03 Dec - 14 Dec Thai AirAsia direct
01 Dec - 17 Dec Thai AirAsia direct
01 Dec - 10 Dec Thai AirAsia direct
03 Dec - 08 Dec Thai AirAsia direct
10 Dec - 14 Dec Thai AirAsia direct
24 Dec - 11 Jan Thai AirAsia direct
22 Dec - 11 Jan Thai AirAsia direct
24 Dec - 05 Jan Thai AirAsia direct
22 Dec - 05 Jan Thai AirAsia direct
15 Dec - 04 Jan Thai AirAsia direct

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

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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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