Cheapest return flights from Seoul to Chiang Mai in October from 208€

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

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

Return flights

15 Oct - 19 Oct Eastar Jet direct
19 Oct - 28 Oct Eastar Jet
25 Oct - 28 Oct Eastar Jet
23 Oct - 28 Oct Eastar Jet
15 Oct - 28 Oct Eastar Jet
25 Oct - 11 Nov Eastar Jet
25 Oct - 13 Nov Eastar Jet
15 Oct - 18 Oct Eastar Jet direct
23 Oct - 11 Nov Eastar Jet
15 Oct - 15 Oct AirAsia X
23 Oct - 13 Nov Eastar Jet
12 Oct - 21 Oct Jeju Air direct
12 Oct - 15 Oct Jeju Air direct
19 Oct - 22 Oct Jeju Air direct
25 Oct - 10 Nov Eastar Jet
29 Oct - 11 Nov AirAsia X
29 Oct - 13 Nov AirAsia X
25 Oct - 12 Nov Eastar Jet
23 Oct - 10 Nov Eastar Jet
19 Oct - 08 Nov Eastar Jet

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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