Cheapest return flights from Seoul to Chiang Mai in August from $306

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

Return flights

01 Aug - 19 Aug Thai AirAsia X
01 Aug - 05 Aug Thai AirAsia X
01 Aug - 06 Aug Thai AirAsia X
01 Aug - 20 Aug Thai AirAsia X
01 Aug - 02 Aug Thai AirAsia X
05 Aug - 23 Aug Thai AirAsia X
05 Aug - 19 Aug Thai AirAsia X
05 Aug - 06 Aug Thai AirAsia X
05 Aug - 25 Aug Thai AirAsia X
05 Aug - 20 Aug Thai AirAsia X
30 Aug - 04 Sep Thai AirAsia X
30 Aug - 12 Sep Thai AirAsia X
22 Aug - 04 Sep Thai AirAsia X
24 Aug - 04 Sep Thai AirAsia X
24 Aug - 12 Sep Thai AirAsia X
19 Aug - 04 Sep Thai AirAsia X
03 Aug - 04 Sep Singapore Airlines
16 Aug - 04 Sep Thai AirAsia X
15 Aug - 04 Sep Thai AirAsia X
14 Aug - 04 Sep AirAsia X

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

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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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