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

Return flights

14 Jun - 18 Jun	Thai AirAsia
14 Jun - 24 Jun	Thai AirAsia
21 Jun - 24 Jun	Thai AirAsia
18 Jun - 24 Jun	Thai AirAsia
14 Jun - 21 Jun	Thai AirAsia
14 Jun - 17 Jun	Thai AirAsia
18 Jun - 21 Jun	Thai AirAsia
27 Jun - 07 Jul	Thai AirAsia
27 Jun - 10 Jul	Thai AirAsia
27 Jun - 17 Jul	Thai AirAsia
21 Jun - 07 Jul	Thai AirAsia
21 Jun - 10 Jul	Thai AirAsia
18 Jun - 07 Jul	Thai AirAsia
06 Jun - 18 Jun	Thai AirAsia
01 Jun - 18 Jun	Thai AirAsia
06 Jun - 11 Jun	Thai AirAsia

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

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 June from 249€

Return flights