Cheapest return GMP–CJU flights, May

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

Return flights

25 May - 28 May Eastar Jet direct
26 May - 28 May Eastar Jet direct
25 May - 29 May Eastar Jet direct
26 May - 29 May Eastar Jet direct
25 May - 11 Jun Eastar Jet direct
26 May - 11 Jun Eastar Jet direct
25 May - 30 May Eastar Jet direct
26 May - 30 May Eastar Jet direct
25 May - 26 Jun Jeju Air direct
25 May - 24 Jun Jeju Air direct
25 May - 31 May Eastar Jet direct
26 May - 31 May Eastar Jet direct
25 May - 04 Jun Eastar Jet direct
26 May - 04 Jun Eastar Jet direct
24 May - 28 May Eastar Jet direct
24 May - 29 May Eastar Jet direct
24 May - 11 Jun Eastar Jet direct
25 May - 01 Jun Eastar Jet direct
24 May - 04 Jun Eastar Jet direct
26 May - 01 Jun Eastar Jet direct

Also check the deals for one-way 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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