Jeju International Airport is a small regional gateway, but a few services can save significant time if something goes wrong after arrival.
Visit Jeju currently lists the airport Lost and Found Center near Gate 5 on the first floor, with phone numbers 064-797-2521~2. If you lose something in the terminal, contact the airport as soon as possible and be ready to describe the item, time and place where you last had it.
The same official visitor page says the airport provides information for domestic-arrival baggage delivery services and lists the Jeju Airport Postal Agency at 2 Gonghang-ro. Availability, eligible destinations and cutoff times can change, so confirm the current service before planning to send bags onward.
For travelers with mobility needs, current airport guidance notes priority screening lanes for passengers with disabilities and older travelers. Mobility aids may still be screened, and passengers with pacemakers can present a pacemaker ID card or surgical certificate and request alternative screening according to staff instructions.
For general airport questions, Visit Jeju lists the Korea Airports Corporation customer center at 1661-2626 and Jeju Airport General Information Center at 064-797-2526. Recheck exact counters and operating details on the day of travel.