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

Return flights

07 Jan - 14 Jan	Air China
15 Jan - 18 Jan	Air China
14 Jan - 18 Jan	Air China
08 Jan - 14 Jan	Air China
25 Jan - 29 Jan	Air China
14 Jan - 22 Jan	Air China
05 Jan - 10 Jan	Air China
18 Jan - 22 Jan	Air China
21 Jan - 29 Jan	Air China
21 Jan - 24 Jan	Air China
28 Jan - 03 Feb	Air China
29 Jan - 04 Feb	Air China
29 Jan - 05 Feb	Air China
30 Jan - 04 Feb	Air China
31 Jan - 07 Feb	China Eastern
23 Jan - 01 Feb	Air China
28 Jan - 01 Feb	Air China
18 Jan - 17 Feb	Air China
12 Jan - 11 Feb	Air China
25 Jan - 03 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 $261

Return flights