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

Return flights

18 Apr - 22 Apr	Singapore Airlines
23 Apr - 27 Apr	Singapore Airlines
06 Apr - 09 Apr	Singapore Airlines
06 Apr - 11 Apr	Singapore Airlines
02 Apr - 06 Apr	Air China
01 Apr - 10 Apr	Air China
30 Apr - 04 May	Air China

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

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 April from $394

Return flights