Cheapest return flights from Bangkok to Seoul in September from $272

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

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

Return flights

24 Sep - 27 Sep Vietnam Airlines
27 Sep - 30 Sep Vietnam Airlines
04 Sep - 18 Sep Vietnam Airlines
30 Sep - 11 Oct Vietnam Airlines
14 Sep - 27 Sep Vietnam Airlines
03 Sep - 07 Sep Vietnam Airlines
01 Sep - 31 Oct Vietnam Airlines
14 Sep - 27 Sep Thai AirAsia X direct
06 Sep - 15 Sep Thai AirAsia X direct
06 Sep - 16 Sep Thai AirAsia X direct
06 Sep - 20 Sep Thai AirAsia X direct
06 Sep - 13 Sep Thai AirAsia X direct
24 Sep - 11 Oct Thai AirAsia X direct
24 Sep - 09 Oct Thai AirAsia X direct
24 Sep - 08 Oct Thai AirAsia X direct
24 Sep - 12 Oct Thai AirAsia X direct
20 Sep - 11 Oct Thai AirAsia X direct
20 Sep - 09 Oct Thai AirAsia X direct
20 Sep - 08 Oct Thai AirAsia X direct
23 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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