UA 4345 then DL 5101 at Detroit
Washington → Detroit → Birmingham (Alabama)
Timetable, Detroit time
10:19UA 4345 from Washington at the gate
08:40DL 5101 to Birmingham (Alabama) leaves the gate
22 h 21 apart on the timetable, overnight
DL 5101 leaves 22 h 21 after UA 4345 arrives on the timetable: more than half a day, so not a connection we count.