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

Return flights

10 Jan - 20 Jan	Philippine Airlines
13 Jan - 22 Jan	Philippine Airlines
07 Jan - 14 Jan	Philippine Airlines
14 Jan - 18 Jan	HK Express
11 Jan - 24 Jan	Philippine Airlines
10 Jan - 17 Jan	Philippine Airlines
11 Jan - 20 Jan	HK Express
12 Jan - 22 Jan	HK Express
09 Jan - 13 Jan	Philippine Airlines
19 Jan - 30 Jan	Spring Airlines
01 Jan - 01 Feb	Philippine Airlines
25 Jan - 02 Feb	HK Express
05 Jan - 06 Feb	China Airlines
08 Jan - 05 Feb	HK Express
12 Jan - 13 Feb	HK Express
05 Jan - 11 Feb	China Airlines

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 $339

Return flights