Cheapest return flights from Seoul to Bangkok in September from $333

Best time to book flights for Seoul (ICN) to Bangkok (DMK) flights at AirHint

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

Return flights

23 Sep - 30 Sep Thai AirAsia X direct
14 Sep - 21 Sep Thai AirAsia X direct
14 Sep - 14 Sep Thai AirAsia X direct
14 Sep - 26 Sep Thai AirAsia X direct
14 Sep - 29 Sep Thai AirAsia X direct
14 Sep - 15 Sep Thai AirAsia X direct
14 Sep - 16 Sep Thai AirAsia X direct
01 Sep - 03 Sep Thai AirAsia X direct
01 Sep - 21 Sep Thai AirAsia X direct
01 Sep - 08 Sep Thai AirAsia X direct
24 Sep - 14 Oct Thai AirAsia X direct
23 Sep - 14 Oct Thai AirAsia X direct
14 Sep - 04 Oct Thai AirAsia X direct
21 Sep - 04 Oct Thai AirAsia X direct
24 Sep - 04 Oct Thai AirAsia X direct
24 Sep - 13 Oct Thai AirAsia X direct
27 Sep - 14 Oct Thai AirAsia X direct
20 Sep - 04 Oct Thai AirAsia X direct
22 Sep - 04 Oct Thai AirAsia X direct
22 Sep - 13 Oct Thai AirAsia X direct

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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