Cheapest one-way flights from Seoul to Cheju in May from $27

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

One-Way flights

27 May Asiana Airlines direct
18 May Asiana Airlines direct
13 May Asiana Airlines direct
17 May Asiana Airlines direct
30 May Asiana Airlines direct
16 May Asiana Airlines direct
09 May Korean Air direct
23 May Korean Air direct

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

Skyscanner

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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