Cheapest return flights from Bangkok to Seoul in September from $190

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

Return flights

10 Sep - 17 Sep Thai AirAsia direct
25 Sep - 29 Sep Thai AirAsia direct
01 Sep - 05 Sep Thai AirAsia direct
01 Sep - 07 Sep Thai AirAsia direct
14 Sep - 18 Sep Thai AirAsia direct
04 Sep - 14 Sep Thai AirAsia direct
08 Sep - 12 Sep Thai AirAsia
10 Sep - 14 Sep Thai AirAsia
07 Sep - 11 Sep Thai AirAsia
07 Sep - 10 Sep Thai AirAsia
29 Sep - 03 Oct Thai AirAsia
29 Sep - 03 Oct Thai Airways direct
21 Sep - 05 Oct China Southern

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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