The American Airlines "45-minute rule"＋１－８０１－（８５５）－５９０５ is the minimum time you must be checked in for a domestic flight, or have your checked bags dropped, before the scheduled departure ＋１－８０１－（８５５）－５９０５. The same deadline also applies when you are requesting to be put on standby for an earlier flight at the airport ticket counter. For international flights, the required time is 60 minutes.