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

Return flights

04 Nov - 09 Nov	Thai VietJet Air
04 Nov - 08 Nov	Thai VietJet Air
03 Nov - 10 Nov	HK Express
04 Nov - 07 Nov	Thai VietJet Air
05 Nov - 09 Nov	HK Express
13 Nov - 18 Nov	Thai VietJet Air
13 Nov - 20 Nov	Thai VietJet Air
03 Nov - 08 Nov	HK Express
22 Nov - 29 Nov	HK Express
19 Nov - 28 Nov	Thai AirAsia
19 Nov - 07 Dec	Thai AirAsia
21 Nov - 07 Dec	Thai AirAsia
21 Nov - 11 Dec	Thai AirAsia
18 Nov - 07 Dec	Thai AirAsia
19 Nov - 06 Dec	Thai AirAsia
26 Nov - 07 Dec	Thai AirAsia
26 Nov - 11 Dec	Thai AirAsia
21 Nov - 06 Dec	Thai AirAsia
18 Nov - 06 Dec	Thai AirAsia
20 Nov - 07 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 248€

Return flights