WN 4187 then DL 929 at Phoenix
St Louis → Phoenix → Atlanta
Timetable, Phoenix time
11:00WN 4187 from St Louis at the gate
23:35DL 929 to Atlanta leaves the gate
12 h 35 apart on the timetable
DL 929 leaves 12 h 35 after WN 4187 arrives on the timetable: more than half a day, so not a connection we count.