Cheapest return flights from Bangkok to Chiang Mai in September from $49

Best time to book flights for Bangkok (DMK) to Chiang Mai (CNX) flights at AirHint

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

Return flights

03 Sep - 07 Sep Thai AirAsia direct
20 Sep - 22 Sep Thai AirAsia direct
22 Sep - 25 Sep Thai Lion Air direct
08 Sep - 24 Sep Thai Lion Air direct
24 Sep - 26 Sep Thai AirAsia direct
23 Sep - 26 Sep Thai AirAsia direct
05 Sep - 12 Sep Thai Lion Air direct
20 Sep - 24 Sep Nok Air direct
25 Sep - 26 Sep Thai AirAsia direct
18 Sep - 29 Sep Nok Air direct
21 Sep - 01 Oct Thai Lion Air direct
30 Sep - 09 Oct Thai AirAsia direct
17 Sep - 01 Oct Thai AirAsia direct
24 Sep - 01 Oct Thai AirAsia direct
24 Sep - 15 Oct Thai AirAsia direct
24 Sep - 07 Oct Thai AirAsia direct
24 Sep - 09 Oct Thai AirAsia direct
06 Sep - 02 Oct Thai Lion Air direct
22 Sep - 01 Oct Thai AirAsia direct
22 Sep - 07 Oct Thai AirAsia direct

Also check the deals for one-way flights from Bangkok to Chiang Mai 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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