Cheapest return flights from Seoul to Chiang Mai in August from $373

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

24 Aug - 27 Aug Singapore Airlines
31 Aug - 03 Sep Singapore Airlines
29 Aug - 06 Sep China Airlines
15 Aug - 19 Aug Scoot Tigerair
08 Aug - 16 Aug Malaysia Airlines
10 Aug - 16 Aug Malaysia Airlines
24 Aug - 08 Sep AirAsia X
24 Aug - 03 Sep AirAsia X
24 Aug - 06 Sep AirAsia X
24 Aug - 02 Sep AirAsia X
24 Aug - 05 Sep AirAsia X
04 Aug - 06 Aug China Airlines
05 Aug - 02 Sep China Airlines
24 Aug - 27 Aug Korean Air direct
31 Aug - 03 Sep Korean Air direct
29 Aug - 06 Sep Korean Air direct
06 Aug - 12 Aug Thai Airways
04 Aug - 19 Aug AirAsia X
04 Aug - 16 Aug AirAsia X
06 Aug - 19 Aug Thai 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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