AirHint found the following cheapest return flights from Busan (PUS) to Chiang Mai (CNX) in January 2026 (see full year).

Return flights

20 Jan - 25 Jan	HK Express
23 Jan - 28 Jan	HK Express
23 Jan - 08 Feb	HK Express
20 Jan - 27 Jan	HK Express
20 Jan - 28 Jan	HK Express
21 Jan - 28 Jan	HK Express
29 Jan - 31 Jan	HK Express
28 Jan - 31 Jan	HK Express
29 Jan - 01 Feb	HK Express
14 Jan - 11 Feb	HK Express
28 Jan - 01 Feb	HK Express
29 Jan - 03 Feb	HK Express
22 Jan - 25 Jan	HK Express
16 Jan - 20 Jan	HK Express
24 Jan - 28 Jan	HK Express
25 Jan - 08 Feb	HK Express
24 Jan - 07 Feb	HK Express
24 Jan - 08 Feb	HK Express
31 Jan - 04 Feb	Eastar Jet	direct
31 Jan - 05 Feb	Eastar Jet	direct

Also check the deals for one-way flights from Busan to Chiang Mai in January.

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 Busan to Chiang Mai in January from $400

Return flights