Cheapest return flights from Chiang Mai to Seoul in December from $444

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 December 2025 (see full year).

Return flights

01 Dec - 03 Dec Thai AirAsia
25 Dec - 14 Jan Thai AirAsia
26 Dec - 14 Jan Thai AirAsia
02 Dec - 03 Dec Thai AirAsia
28 Dec - 14 Jan Thai AirAsia
29 Dec - 14 Jan Thai AirAsia
30 Dec - 14 Jan Thai AirAsia
07 Dec - 11 Dec China Airlines
18 Dec - 04 Jan China Southern
19 Dec - 04 Jan China Southern
11 Dec - 17 Dec China Southern
09 Dec - 17 Dec China Southern
04 Dec - 18 Dec AirAsia
04 Dec - 14 Dec AirAsia
04 Dec - 16 Dec AirAsia
04 Dec - 17 Dec AirAsia
04 Dec - 05 Dec AirAsia
25 Dec - 15 Jan Thai AirAsia
26 Dec - 15 Jan Thai AirAsia
24 Dec - 14 Jan Thai AirAsia

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

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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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