AA 1428 then WN 2124 at Phoenix
DES → Phoenix → Denver
Timetable, Phoenix time
10:29AA 1428 from DES at the gate
09:55WN 2124 to Denver leaves the gate
23 h 26 apart on the timetable, overnight
WN 2124 leaves 23 h 26 after AA 1428 arrives on the timetable: more than half a day, so not a connection we count.