Cheapest return flights from Seoul to Cheju in August from $21

AirHint found the following cheapest return flights from Seoul (GMP) to Cheju (CJU) in August 2025 (see full year).

Return flights

31 Aug - 03 Sep Jin Air direct
31 Aug - 04 Sep Jin Air direct
31 Aug - 02 Sep Eastar Jet direct
30 Aug - 04 Sep T'way Air direct
31 Aug - 10 Sep Jin Air direct
31 Aug - 11 Sep Jin Air direct
30 Aug - 03 Sep T'way Air direct
30 Aug - 02 Sep T'way Air direct
31 Aug - 18 Sep Jin Air direct
30 Aug - 11 Sep T'way Air direct
30 Aug - 31 Aug T'way Air direct
29 Aug - 31 Aug Jin Air direct
31 Aug - 31 Aug Jin Air direct

Also check the deals for one-way flights from Seoul to Cheju in August.

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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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