Cheapest one-way flights from Seoul to Cheju in September from $25

Best time to book flights for Seoul (GMP) to Cheju (CJU) flights at AirHint

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

One-Way flights

09 Sep Eastar Jet direct
16 Sep Eastar Jet direct
02 Sep Eastar Jet direct
23 Sep Eastar Jet direct
15 Sep Korean Air direct
10 Sep Jin Air direct
01 Sep Korean Air direct
08 Sep Korean Air direct
22 Sep Korean Air direct
24 Sep Jin Air 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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