Cheapest one-way flights from Seoul to Chiang Mai in October from $118

Best time to book flights for Seoul (ICN) to Chiang Mai (CNX) flights at AirHint

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

One-Way flights

29 Oct AirAsia X
27 Oct AirAsia X
30 Oct Thai AirAsia X
11 Oct Jeju Air direct
18 Oct Eastar Jet direct
25 Oct Eastar Jet direct
10 Oct Jeju Air direct
15 Oct Eastar Jet direct
17 Oct Jeju Air direct
16 Oct Eastar Jet direct

Also check the deals for return flights from Seoul to Chiang Mai in October.

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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