Cheapest return flights from Seoul to Chiang Mai in August from $235

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

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

Return flights

30 Aug - 03 Sep Jeju Air direct
30 Aug - 06 Sep Jeju Air direct
26 Aug - 02 Sep Jeju Air direct
25 Aug - 01 Sep Jeju Air direct
31 Aug - 08 Sep Jeju Air direct
27 Aug - 03 Sep Jeju Air direct
26 Aug - 30 Aug Jeju Air direct
27 Aug - 30 Aug Jeju Air direct
16 Aug - 19 Aug Jeju Air direct
25 Aug - 30 Aug Jeju Air direct
23 Aug - 26 Aug Jeju Air direct
16 Aug - 30 Aug Jeju Air direct
20 Aug - 26 Aug Jeju Air direct
17 Aug - 20 Aug Jeju Air direct
19 Aug - 24 Aug Jeju Air direct
27 Aug - 29 Aug Jeju Air direct
29 Aug - 07 Sep Jeju Air direct
29 Aug - 06 Sep Jeju Air direct
29 Aug - 02 Sep Jeju Air direct
28 Aug - 04 Sep Jeju Air direct

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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