Cheapest return flights from Chiang Mai to Bangkok in September from $56

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

Return flights

25 Sep - 28 Sep Thai VietJet Air direct
18 Sep - 21 Sep Thai VietJet Air direct
26 Sep - 28 Sep Thai AirAsia direct
24 Sep - 28 Sep Thai VietJet Air direct
27 Sep - 30 Sep Thai AirAsia direct
22 Sep - 29 Sep Thai AirAsia direct
19 Sep - 23 Sep Thai AirAsia direct
19 Sep - 21 Sep Nok Air direct
20 Sep - 21 Sep Thai AirAsia direct
22 Sep - 24 Sep Thai Lion Air direct
30 Sep - 01 Oct Thai VietJet Air direct
30 Sep - 09 Oct Thai VietJet Air direct
29 Sep - 01 Oct Thai AirAsia direct
29 Sep - 06 Oct Thai AirAsia direct
26 Sep - 07 Oct Thai AirAsia direct
26 Sep - 14 Oct Thai AirAsia direct
26 Sep - 13 Oct Thai AirAsia direct
26 Sep - 08 Oct Thai AirAsia direct
26 Sep - 12 Oct Thai AirAsia direct
30 Sep - 07 Oct Thai AirAsia direct

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