AA 3818 then AA 4078 at DFW
El Paso → Dallas-Fort Worth → Chattanooga
Timetable, Dallas-Fort Worth time
15:45AA 3818 from El Paso at the gate
08:40AA 4078 to Chattanooga leaves the gate
16 h 55 apart on the timetable, overnight
AA 4078 leaves 16 h 55 after AA 3818 arrives on the timetable: more than half a day, so not a connection we count.