Cheapest return flights from Seoul to Chiang Mai in October from $190

AirHint found the following cheapest return flights from Seoul (ICN) to Chiang Mai (CNX) in October 2026 (see full year).

Return flights

02 Oct - 10 Oct AirAsia X
05 Oct - 10 Oct AirAsia X
16 Oct - 21 Oct AirAsia X
05 Oct - 08 Oct AirAsia X
19 Oct - 29 Oct AirAsia X
02 Oct - 08 Oct AirAsia X
13 Oct - 16 Oct Jeju Air direct
18 Oct - 22 Oct Eastar Jet direct
18 Oct - 21 Oct Eastar Jet direct
17 Oct - 22 Oct Eastar Jet direct
28 Oct - 10 Nov Thai AirAsia
26 Oct - 09 Nov Thai AirAsia
19 Oct - 13 Nov Thai VietJet Air
28 Oct - 03 Nov Vietnam Airlines
29 Oct - 02 Nov VietJet Air
11 Oct - 01 Nov Thai AirAsia
30 Oct - 04 Nov China Airlines
24 Oct - 01 Nov China Airlines
20 Oct - 01 Nov China Airlines
31 Oct - 04 Nov China Airlines

Also check the deals for one-way flights from Seoul to Chiang Mai in October.

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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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