F9 4392 then DL 1371 at Detroit
Phoenix → Detroit → St Louis
Timetable, Detroit time
13:52F9 4392 from Phoenix at the gate
12:40DL 1371 to St Louis leaves the gate
22 h 48 apart on the timetable, overnight
DL 1371 leaves 22 h 48 after F9 4392 arrives on the timetable: more than half a day, so not a connection we count.