Cheapest one-way flights from Seoul to Chiang Mai in August from $151

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

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.