Cheapest one-way flights from Seoul to Chiang Mai in October from $79

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

One-Way flights

11 Oct Eastar Jet direct
12 Oct Eastar Jet direct
15 Oct Eastar Jet direct
24 Oct Jeju Air direct
22 Oct Jeju Air direct
19 Oct Jeju Air direct
18 Oct Jeju Air direct
21 Oct Jeju Air direct
13 Oct Jeju Air direct
17 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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