Cheapest one-way flights from Seoul to Chiang Mai in October from $136

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

14 Oct Jeju Air direct
18 Oct Jeju Air direct
11 Oct Eastar Jet direct
19 Oct Eastar Jet direct
12 Oct Eastar Jet direct
25 Oct Jeju Air direct
21 Oct Jeju Air direct
20 Oct Jeju Air direct
17 Oct Jeju Air direct
10 Oct Jeju Air 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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