https://mforum.cari.com.my/forum.php?mod=viewthread&tid=5487637&extra=
https://officialairlineservicedeskkcom.zohodesk.com/portal/en/kb/articles/1-866-838-4934-how-long-before-a-delta-flight-can-i-check-in-3-9-2025
https://officialairlineservicedeskkcom.zohodesk.com/portal/en/kb/articles/1-866-838-4934-how-early-can-you-check-in-for-lufthansa-3-9-2025-1
