Cheapest return flights from Chiang Mai to Seoul in September from 170€

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

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

Return flights

11 Sep - 24 Sep Eastar Jet direct
11 Sep - 25 Sep Eastar Jet direct
14 Sep - 24 Sep Eastar Jet direct
14 Sep - 25 Sep Eastar Jet direct
05 Sep - 25 Sep Jin Air direct
04 Sep - 25 Sep Jin Air direct
05 Sep - 24 Sep Jin Air direct
04 Sep - 24 Sep Jin Air direct
03 Sep - 24 Sep Jin Air direct
07 Sep - 24 Sep Jin Air direct
25 Sep - 15 Oct Eastar Jet direct
27 Sep - 15 Oct Eastar Jet direct
26 Sep - 15 Oct Thai AirAsia
30 Sep - 15 Oct Thai AirAsia
24 Sep - 15 Oct Eastar Jet direct
25 Sep - 12 Oct Eastar Jet direct
25 Sep - 16 Oct Eastar Jet
25 Sep - 14 Oct Eastar Jet
28 Sep - 15 Oct Eastar Jet direct
27 Sep - 12 Oct Eastar Jet direct

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