Cheapest return flights from Chiang Mai to Kathmandu in August from $301

AirHint found the following cheapest return flights from Chiang Mai (CNX) to Kathmandu (KTM) in August 2025 (see full year).

Return flights

22 Aug - 29 Aug Nok Air
17 Aug - 04 Sep Thai AirAsia
22 Aug - 04 Sep Thai AirAsia
17 Aug - 06 Sep Thai AirAsia
22 Aug - 06 Sep Thai AirAsia
22 Aug - 08 Sep Thai AirAsia
17 Aug - 29 Aug Thai AirAsia
13 Aug - 29 Aug Thai AirAsia
01 Aug - 06 Aug Thai AirAsia
01 Aug - 03 Aug Thai AirAsia

Also check the deals for one-way flights from Chiang Mai to Kathmandu in August.

Skyscanner

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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