The Institute of Medicine released two seminal reports in 1999 and 2001.The first report, To Err is Human: Building a Safer Health System released in 1999 received enormous publicity and focused attention on the issues of medical error and patient safety.
The general rule of thumb is that one is supposed to arrive. 1  2 hours early for a domestic flight and. 2  3 for an international flight.
The UMNR must be brought to the airport by a parent/guardian. Delta recommends arriving at the airport at least 90 minutes prior to departure time for domestic flights and 2 hours prior to departure time for international flights. Please keep in mind, some airports have specific cut off times for check-in.