Cheapest one-way flights from Seoul to Cheju in May from 23€

AirHint found the following cheapest one-way flights from Seoul (ICN) to Cheju (CJU) in May 2026 (see full year).

One-Way flights

26 May Jeju Air direct
19 May Jeju Air direct
30 May Jeju Air direct
12 May Jeju Air direct
16 May Jeju Air direct
23 May Jeju Air direct
28 May Eastar Jet
17 May Eastar Jet
18 May Jeju Air
07 May Jin Air

Also check the deals for return flights from Seoul to Cheju in May.

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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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