AA 2253 then AA 5068 at DFW
Santa Ana → Dallas-Fort Worth → Chattanooga
Timetable, Dallas-Fort Worth time
15:52AA 2253 from Santa Ana at the gate
15:36AA 5068 to Chattanooga leaves the gate
23 h 44 apart on the timetable, overnight
AA 5068 leaves 23 h 44 after AA 2253 arrives on the timetable: more than half a day, so not a connection we count.