Checked-in Baggage - Jeju Air
allowances. Baggage Dimensions for Free Baggage Service. Sum of 3 edges in CM. A+B+C = Max. 203CM. international flights ...
https://www.jejuair.net/en/linkService/boardingProcessGuide/trustBaggage.doCarry-on Baggage - Jeju Air
If you make multiple duty-free purchases in excess of the carry-on baggage allowance, you may be required to check in such items at the boarding gate at a fee.
https://www.jejuair.net/en/linkService/boardingProcessGuide/cabinBaggage.do