AirHint found the following cheapest return flights from Busan (PUS) to Cheju (CJU) in May 2026 (see full year).

Return flights

11 May - 14 May	Korean Air	direct
18 May - 21 May	Korean Air	direct
14 May - 16 May	Korean Air	direct
20 May - 22 May	Korean Air	direct
10 May - 13 May	Korean Air	direct
12 May - 15 May	Korean Air	direct
09 May - 10 May	Korean Air	direct
10 May - 17 May	Korean Air	direct
01 May - 07 May	Korean Air	direct
03 May - 14 May	Korean Air	direct

Also check the deals for one-way flights from Busan to Cheju in May.

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 Busan to Cheju in May from 93€

Return flights