AA 1014 then AA 4040 at DFW
Tucson → Dallas-Fort Worth → Brownsville
Timetable, Dallas-Fort Worth time
13:54AA 1014 from Tucson at the gate
13:27AA 4040 to Brownsville leaves the gate
23 h 33 apart on the timetable, overnight
AA 4040 leaves 23 h 33 after AA 1014 arrives on the timetable: more than half a day, so not a connection we count.