AA 2926 then AA 6238 at DFW
Tucson → Dallas-Fort Worth → Amarillo
Timetable, Dallas-Fort Worth time
17:46AA 2926 from Tucson at the gate
08:25AA 6238 to Amarillo leaves the gate
14 h 39 apart on the timetable, overnight
AA 6238 leaves 14 h 39 after AA 2926 arrives on the timetable: more than half a day, so not a connection we count.