Cheapest return flights from Chiang Mai to Seoul in August from $443

Best time to book flights for Chiang Mai (CNX) to Seoul (ICN) flights at AirHint

AirHint found the following cheapest return flights from Chiang Mai (CNX) to Seoul (ICN) in August 2025 (see full year).

Return flights

06 Aug - 27 Aug Singapore Airlines
01 Aug - 30 Aug Singapore Airlines
02 Aug - 12 Aug Thai AirAsia
16 Aug - 21 Aug AirAsia
06 Aug - 12 Aug AirAsia
03 Aug - 12 Aug Thai AirAsia
09 Aug - 12 Aug Thai AirAsia
08 Aug - 12 Aug Thai AirAsia
14 Aug - 21 Aug AirAsia
07 Aug - 12 Aug Thai AirAsia
16 Aug - 05 Sep AirAsia
17 Aug - 05 Sep AirAsia
15 Aug - 05 Sep AirAsia
18 Aug - 05 Sep Thai AirAsia

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