AirHint found the following cheapest return flights from Chiang Mai (CNX) to Seoul (ICN) in November 2025 (see full year).

Return flights

20 Nov - 26 Nov	Thai AirAsia
20 Nov - 28 Nov	Thai AirAsia
20 Nov - 24 Nov	Thai AirAsia
11 Nov - 26 Nov	Thai AirAsia
11 Nov - 28 Nov	Thai AirAsia
11 Nov - 24 Nov	Thai AirAsia
25 Nov - 28 Nov	Thai AirAsia
19 Nov - 26 Nov	Thai AirAsia
19 Nov - 28 Nov	Thai AirAsia
19 Nov - 24 Nov	Thai AirAsia
26 Nov - 02 Dec	HK Express
29 Nov - 03 Dec	HK Express
26 Nov - 03 Dec	HK Express
25 Nov - 15 Dec	Thai AirAsia
26 Nov - 15 Dec	Thai AirAsia
27 Nov - 15 Dec	Thai AirAsia
28 Nov - 15 Dec	Thai AirAsia
14 Nov - 18 Dec	Nok Air
20 Nov - 03 Dec	Thai AirAsia
25 Nov - 13 Dec	Thai AirAsia

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

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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Cheapest return flights from Chiang Mai to Seoul in November from 256€

Return flights