Cheapest one-way flights from Seoul to Chiang Mai in December from $111

AirHint found the following cheapest one-way flights from Seoul (ICN) to Chiang Mai (CNX) in December 2025 (see full year).

One-Way flights

09 Dec HK Express
10 Dec HK Express
06 Dec HK Express
04 Dec VietJet Air
12 Dec HK Express
18 Dec VietJet Air
14 Dec VietJet Air
11 Dec Philippines AirAsia Inc.
19 Dec VietJet Air
13 Dec Thai AirAsia X

Also check the deals for return 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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