Cheapest return flights from Bangkok to Chiang Mai in September from $51

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

16 Sep - 23 Sep Thai Lion Air direct
29 Sep - 30 Sep Thai Lion Air direct
20 Sep - 22 Sep Thai Lion Air direct
18 Sep - 20 Sep Thai Lion Air direct
11 Sep - 15 Sep Thai Lion Air direct
20 Sep - 21 Sep Thai Lion Air direct
03 Sep - 05 Sep Nok Air direct
17 Sep - 24 Sep Thai Lion Air direct
09 Sep - 16 Sep Nok Air direct
13 Sep - 22 Sep Thai Lion Air direct
23 Sep - 11 Oct Thai AirAsia direct
23 Sep - 06 Oct Thai AirAsia direct
23 Sep - 02 Oct Thai AirAsia direct
13 Sep - 02 Oct Thai AirAsia direct
12 Sep - 02 Oct Thai AirAsia direct
17 Sep - 06 Oct Thai AirAsia direct
17 Sep - 02 Oct Thai AirAsia direct
16 Sep - 06 Oct Thai AirAsia direct
16 Sep - 02 Oct Thai AirAsia direct
22 Sep - 11 Oct Nok Air direct

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

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.

Book a cheap hotel in Chiang Mai

Cheap car rent in Chiang Mai