Cheapest return flights from Bangkok to Seoul in September from $194

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

Return flights

12 Sep - 14 Sep Thai AirAsia X direct
14 Sep - 19 Sep Thai AirAsia X direct
05 Sep - 10 Sep Thai AirAsia X direct
07 Sep - 14 Sep Thai AirAsia X direct
05 Sep - 12 Sep Thai AirAsia X direct
07 Sep - 12 Sep Thai AirAsia X direct
12 Sep - 19 Sep Thai AirAsia X direct
14 Sep - 24 Sep Thai AirAsia X direct
05 Sep - 08 Sep Thai AirAsia X direct
14 Sep - 26 Sep Thai AirAsia X direct
28 Sep - 18 Oct Thai AirAsia X direct
28 Sep - 17 Oct Thai AirAsia X direct
28 Sep - 13 Oct Thai AirAsia X direct
28 Sep - 14 Oct Thai AirAsia X direct
28 Sep - 15 Oct Thai AirAsia X direct
28 Sep - 09 Oct Thai AirAsia X direct
28 Sep - 12 Oct Thai AirAsia X direct
28 Sep - 16 Oct Thai AirAsia X direct
28 Sep - 10 Oct Thai AirAsia X direct
28 Sep - 11 Oct Thai AirAsia X direct

Also check the deals for one-way flights from Bangkok 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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