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

One-Way flights

22 Aug	Thai AirAsia X	direct
26 Aug	Eastar Jet	direct
21 Aug	Eastar Jet	direct
28 Aug	Jin Air	direct
31 Aug	Eastar Jet	direct
25 Aug	T'way Air	direct
30 Aug	VietJet Air
27 Aug	Shandong Airlines
24 Aug	Eastar Jet	direct
19 Aug	VietJet Air

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 $93

One-Way flights