Cheapest return flights from Seoul to Chiang Mai in December from $389

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 December 2025 (see full year).

Return flights

04 Dec - 08 Dec Malaysia Airlines
11 Dec - 14 Dec Malaysia Airlines
05 Dec - 08 Dec Malaysia Airlines
04 Dec - 13 Dec Malaysia Airlines
06 Dec - 08 Dec Malaysia Airlines
05 Dec - 13 Dec Malaysia Airlines
07 Dec - 14 Dec Malaysia Airlines
08 Dec - 11 Dec Malaysia Airlines
05 Dec - 12 Dec Malaysia Airlines
11 Dec - 17 Dec China Airlines
15 Dec - 09 Jan China Airlines
03 Dec - 05 Jan Malaysia Airlines
22 Dec - 13 Jan China Airlines
17 Dec - 02 Jan Malaysia Airlines
17 Dec - 04 Jan Malaysia Airlines
03 Dec - 01 Jan Malaysia Airlines
15 Dec - 09 Jan Korean Air direct
03 Dec - 05 Jan Korean Air direct
03 Dec - 28 Jan China Southern
25 Dec - 15 Jan China Southern

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

Skyscanner

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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