Jeju City, Seoul Gimpo Intl, and Busan Gimhae are the top airports Jeju Air flies into and out of during the year.
The cheapest domestic Jeju Air flight is flying Gwangju to Jeju City, which is $34. This round-trip flight has 0 stops. The cheapest one-way Jeju Air ticket is flying from Seoul Gimpo Intl to Jeju City. You can expect to pay around $14 per ticket. This flight has 0 stops.
No, there are no Jeju Air flights from Los Angeles. However, Jeju Air does fly from Sapporo Chitose on a weekly basis. You could also fly with China Airlines from Los Angeles as an alternative travel solution.