AirHint found the following cheapest one-way flights from Busan (PUS) to Cheju (CJU) in August 2025 (see full year).

One-Way flights

27 Aug	Air Busan	direct
28 Aug	Eastar Jet	direct
26 Aug	Eastar Jet	direct
25 Aug	Korean Air	direct
20 Aug	Air Busan	direct
19 Aug	Air Busan	direct
11 Aug	Jin Air	direct
09 Aug	Jin Air	direct
12 Aug	Eastar Jet	direct
31 Aug	Eastar Jet	direct

Also check the deals for return flights from Busan to Cheju 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 Busan to Cheju in August from 20€

One-Way flights