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

Return flights

05 Sep - 14 Sep	Thai VietJet Air	direct
24 Sep - 28 Sep	HK Express
14 Sep - 03 Oct	Thai VietJet Air
18 Sep - 22 Sep	HK Express
17 Sep - 21 Sep	HK Express
11 Sep - 14 Sep	HK Express
15 Sep - 22 Sep	HK Express
10 Sep - 14 Sep	HK Express
12 Sep - 19 Sep	Thai VietJet Air
23 Sep - 26 Sep	HK Express
23 Sep - 28 Sep	HK Express
25 Sep - 01 Oct	Thai AirAsia
25 Sep - 07 Oct	Thai AirAsia
26 Sep - 07 Oct	Thai AirAsia
26 Sep - 01 Oct	Thai AirAsia
29 Sep - 01 Oct	Thai AirAsia
29 Sep - 07 Oct	Thai AirAsia
25 Sep - 04 Oct	Thai AirAsia
26 Sep - 04 Oct	Thai AirAsia
25 Sep - 02 Oct	Thai AirAsia

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

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 Osaka

Cheap car rent in Osaka

Cheapest return flights from Chiang Mai to Osaka in September from 204€

Return flights