AA 2121 then WN 2423 at Phoenix
Reno → Phoenix → Dallas
Timetable, Phoenix time
12:44AA 2121 from Reno at the gate
05:40WN 2423 to Dallas leaves the gate
16 h 56 apart on the timetable, overnight
WN 2423 leaves 16 h 56 after AA 2121 arrives on the timetable: more than half a day, so not a connection we count.