Cheapest return flights from Seoul to Bangkok in September from $205

AirHint found the following cheapest return flights from Seoul (ICN) to Bangkok (DMK) in September 2026 (see full year).

Return flights

12 Sep - 14 Sep Thai AirAsia
10 Sep - 15 Sep Thai AirAsia
08 Sep - 15 Sep Thai AirAsia
07 Sep - 16 Sep Thai AirAsia
02 Sep - 07 Sep Thai AirAsia
04 Sep - 07 Sep Thai AirAsia
30 Sep - 07 Oct Thai AirAsia
30 Sep - 19 Oct Thai AirAsia
26 Sep - 20 Oct Thai AirAsia
08 Sep - 13 Sep Thai AirAsia
10 Sep - 17 Sep Thai AirAsia
12 Sep - 13 Sep Thai AirAsia
07 Sep - 14 Sep Thai AirAsia
30 Sep - 13 Oct Thai AirAsia
25 Sep - 20 Oct Thai AirAsia
30 Sep - 08 Oct Thai AirAsia
27 Sep - 20 Oct Thai AirAsia
28 Sep - 12 Oct Thai AirAsia
29 Sep - 19 Oct Thai AirAsia
14 Sep - 15 Oct Thai AirAsia

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