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

Return flights

19 Aug - 30 Aug	Thai AirAsia X	direct
19 Aug - 23 Aug	Thai AirAsia X	direct
19 Aug - 24 Aug	Thai AirAsia X	direct
29 Aug - 30 Aug	Thai AirAsia X	direct
28 Aug - 30 Aug	Thai AirAsia X	direct
10 Aug - 30 Aug	Thai AirAsia X	direct
18 Aug - 30 Aug	Thai AirAsia X	direct
25 Aug - 30 Aug	Thai AirAsia X	direct
23 Aug - 30 Aug	Thai AirAsia X	direct
22 Aug - 30 Aug	Thai AirAsia X	direct

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

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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Cheapest return flights from Bangkok to Seoul in August from 371€

Return flights