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

Return flights

26 Aug - 27 Aug	Eastar Jet
20 Aug - 27 Aug	Eastar Jet
30 Aug - 02 Sep	Jeju Air
30 Aug - 03 Sep	Jeju Air
28 Aug - 02 Sep	Jeju Air
22 Aug - 27 Aug	Eastar Jet
27 Aug - 03 Sep	Jeju Air
26 Aug - 28 Aug	Jeju Air
27 Aug - 28 Aug	Jeju Air
20 Aug - 21 Aug	Jeju Air
28 Aug - 01 Sep	Jeju Air
30 Aug - 06 Sep	Jeju Air
25 Aug - 28 Aug	T'way Air
25 Aug - 30 Aug	T'way Air
20 Aug - 26 Aug	Jeju Air
23 Aug - 26 Aug	Jeju Air
29 Aug - 01 Sep	Jeju Air
31 Aug - 03 Sep	Jeju Air
31 Aug - 02 Sep	Jeju Air
30 Aug - 02 Sep	T'way Air	direct

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

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.

Book a cheap hotel in Osaka

Cheap car rent in Osaka

Cheapest return flights from Cheju to Osaka in August from 101€

Return flights