Although the process varies state to state, these general steps can help you get started. 1  Replace your birth certificate. Find the vital records office in the state where you were born. 2  Replace your driverâs license. Get this first if you cannot get your birth certificate. 3  Replace your marriage certificate.
The American Airlines website recommends arriving at least 60 minutes early for domestic flights and two hours early for international flights. You must check in at least 30 minutes before a domestic flight and 60 minutes for international flights; otherwise, American Airlines has the right to cancel your ticket.
You should arrive at the boarding gate at least 15 minutes before your departure time for a domestic flight and 45 minutes if you are traveling on an international flight. Baggage check-in time requirements vary by airport.isit delta.com from 24 hours to 30 minutes* prior to a domestic flight within the U.S. or 60 minutes* prior to an international flight, go to Check In, and follow the simple instructions. To access your itinerary, you will need one of the following: 1  A SkyMiles number and Password.