Cheapest return flights from Seoul to Bangkok in September from $155

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

Return flights

04 Sep - 07 Sep Thai AirAsia X direct
09 Sep - 16 Sep Thai AirAsia X direct
10 Sep - 14 Sep Thai AirAsia X direct
01 Sep - 15 Sep Thai AirAsia X direct
05 Sep - 09 Sep Thai AirAsia X direct
09 Sep - 13 Sep Thai AirAsia X direct
12 Sep - 16 Sep Thai AirAsia X direct
05 Sep - 11 Sep Thai AirAsia X direct
06 Sep - 11 Sep Thai AirAsia X direct
02 Sep - 06 Sep Thai AirAsia X direct
28 Sep - 08 Oct Vietnam Airlines
27 Sep - 04 Oct Vietnam Airlines
27 Sep - 04 Oct Thai AirAsia X direct
24 Sep - 01 Oct Thai AirAsia X direct
28 Sep - 08 Oct Asiana Airlines direct
23 Sep - 12 Oct Thai Airways direct
27 Sep - 05 Oct China Southern

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

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