AirHint found the following cheapest return flights from Chiang Mai (CNX) to Seoul (ICN) in February 2026 (see full year).

Return flights

05 Feb - 09 Feb	Thai AirAsia
05 Feb - 23 Feb	Thai AirAsia
05 Feb - 25 Feb	Thai AirAsia
05 Feb - 06 Feb	Thai AirAsia
04 Feb - 09 Feb	Thai AirAsia
04 Feb - 23 Feb	Thai AirAsia
04 Feb - 06 Feb	Thai AirAsia
24 Feb - 25 Feb	Thai AirAsia
24 Feb - 09 Mar	Thai AirAsia
24 Feb - 16 Mar	Thai AirAsia
24 Feb - 11 Mar	Thai AirAsia
24 Feb - 01 Mar	Thai AirAsia
24 Feb - 07 Mar	Thai AirAsia
02 Feb - 09 Feb	Thai AirAsia
02 Feb - 06 Feb	Thai AirAsia
09 Feb - 01 Mar	Thai AirAsia
10 Feb - 01 Mar	Thai AirAsia
27 Feb - 09 Mar	Thai AirAsia
27 Feb - 16 Mar	Thai AirAsia
27 Feb - 11 Mar	Thai AirAsia

Also check the deals for one-way flights from Chiang Mai to Seoul in February.

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 Chiang Mai to Seoul in February from $297

Return flights