Web check-in is available on the official website of Eastar Jet for domestic flights from Seouls Gimpo International Airport, Jeju International Airport , and Daegu International Airport . This service is available from 24 hours before the scheduled departure of the flight and is terminated 1 hour before the scheduled departure time . After that, passengers are obliged to cancel the booking on the company’s web page, or they will be charged a penalty fee . After check-in, passengers need to print their boarding pass or download it in a mobile device, and the identity will be checked at the gate on boarding . The 2D barcode mobile phone check-in can be completed with a mobile phone that supports the reading of the airplane ticket 2D barcode.