AirHint found the following cheapest one-way flights from Chiang Mai (CNX) to Seoul (ICN) in April 2026 (see full year).

One-Way flights

23 Apr	Thai AirAsia
21 Apr	Thai AirAsia
29 Apr	Malaysia Airlines
30 Apr	Malaysia Airlines
04 Apr	Thai AirAsia
03 Apr	Thai AirAsia
16 Apr	Thai AirAsia
06 Apr	Thai AirAsia
14 Apr	AirAsia
13 Apr	Thai AirAsia

Also check the deals for return flights from Chiang Mai to Seoul 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 one-way flights from Chiang Mai to Seoul in April from 132€

One-Way flights