AA 3951 then WN 1341 at Phoenix
Tucson → Phoenix → Dallas
Timetable, Phoenix time
17:01AA 3951 from Tucson at the gate
14:10WN 1341 to Dallas leaves the gate
21 h 09 apart on the timetable, overnight
WN 1341 leaves 21 h 09 after AA 3951 arrives on the timetable: more than half a day, so not a connection we count.