Cheapest one-way flights from Seoul to Cheju in September from $8

AirHint found the following cheapest one-way flights from Seoul (GMP) to Cheju (CJU) in September 2025 (see full year).

One-Way flights

03 Sep Eastar Jet direct
04 Sep Eastar Jet direct
02 Sep Eastar Jet direct
01 Sep Eastar Jet direct
16 Sep Eastar Jet direct
10 Sep Eastar Jet direct
09 Sep Eastar Jet direct
23 Sep Eastar Jet direct
15 Sep Eastar Jet direct
08 Sep Eastar Jet direct

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

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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