AirHint found the following cheapest return flights from Osaka (KIX) to Chiang Mai (CNX) in December 2026 (see full year).

Return flights

21 Dec - 25 Dec	Air China
24 Dec - 08 Jan	Malaysia Airlines
25 Dec - 06 Jan	Malaysia Airlines
23 Dec - 01 Jan	China Airlines
24 Dec - 28 Dec	China Airlines
25 Dec - 02 Jan	Malaysia Airlines
30 Dec - 06 Jan	Malaysia Airlines
26 Dec - 04 Jan	China Airlines
30 Dec - 02 Jan	Malaysia Airlines
25 Dec - 03 Jan	Malaysia Airlines
31 Dec - 04 Jan	Malaysia Airlines
27 Dec - 02 Jan	China Airlines
25 Dec - 29 Dec	Cathay Pacific
25 Dec - 25 Dec	Thai VietJet Air

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

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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Cheapest return flights from Osaka to Chiang Mai in December from $440

Return flights