https://community.lumivero.com/s/question/0D5Jw00000dXoUIKA0/turkish-check-inhow-long-before-a-flight-can-you-checkin-turkish-knoweverything?language=en_US
https://community.lumivero.com/s/question/0D5Jw00000dXr77KAC/uacheck-inhow-to-check-in-united-flight-need-to-know-about-ua-airport-process?language=en_US