AirHint found the following cheapest one-way flights from Bangkok (BKK) to Seoul (ICN) in August 2025 (see full year).

One-Way flights

28 Aug	Eastar Jet	direct
29 Aug	Jin Air	direct
25 Aug	Jin Air	direct
12 Aug	Eastar Jet	direct
22 Aug	Jin Air	direct
26 Aug	Jin Air	direct
13 Aug	Thai AirAsia X	direct
31 Aug	Thai AirAsia X	direct
20 Aug	Shandong Airlines
24 Aug	Thai AirAsia X	direct

Also check the deals for return 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 one-way flights from Bangkok to Seoul in August from 86€

One-Way flights