AA 2574 then WN 4200 at Phoenix
St Louis → Phoenix → Reno
Timetable, Phoenix time
10:36AA 2574 from St Louis at the gate
07:45WN 4200 to Reno leaves the gate
21 h 09 apart on the timetable, overnight
WN 4200 leaves 21 h 09 after AA 2574 arrives on the timetable: more than half a day, so not a connection we count.