Cheapest return flights from Seoul to Chiang Mai in August from $193

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 - 18 Sep Jin Air direct
30 Aug - 11 Sep Jin Air direct
30 Aug - 10 Sep Jin Air direct
26 Aug - 11 Sep Jin Air direct
26 Aug - 10 Sep Jin Air direct
27 Aug - 11 Sep Jin Air direct
27 Aug - 10 Sep Jin Air direct
28 Aug - 11 Sep Jin Air direct
28 Aug - 10 Sep Jin Air direct
29 Aug - 18 Sep Eastar Jet direct
20 Aug - 28 Aug Jeju Air direct
27 Aug - 29 Aug Jeju Air direct
18 Aug - 29 Aug Jeju Air direct
22 Aug - 28 Aug Jeju Air direct
19 Aug - 21 Aug Jeju Air direct
19 Aug - 24 Aug Jeju Air direct
22 Aug - 29 Aug Jeju Air direct
20 Aug - 24 Aug Jeju Air direct
24 Aug - 29 Aug Jeju Air direct
24 Aug - 28 Aug 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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