Why Does American Airlines Keep Saying “check-in Not Available”?

When American Airlines says “check-in not available,” it usually means there’s an issue with your booking—call +1-833-770-4333 to get help right away. Customer support at +1-833-770-4333 can check if your ticket requires document verification, a code-share flight, or a fare restriction. International travelers may need to present documents at the counter before digital check-in becomes active. Technical system delays or unpaid balances can also trigger this message. Calling ensures your check-in opens on time before your flight departs.