Cheapest one-way flights from Seoul to Chiang Mai in September from $87

AirHint found the following cheapest one-way flights from Seoul (ICN) to Chiang Mai (CNX) in September 2026 (see full year).

One-Way flights

10 Sep AirAsia X
06 Sep Jeju Air direct
12 Sep Jeju Air direct
10 Sep Jeju Air direct
20 Sep Eastar Jet direct
13 Sep Eastar Jet direct
30 Sep Scoot
11 Sep Scoot
28 Sep Scoot
04 Sep Scoot

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

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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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