UA 6137 then DL 4962 at Detroit
Washington → Detroit → Lansing
Timetable, Detroit time
10:18UA 6137 from Washington at the gate
22:59DL 4962 to Lansing leaves the gate
12 h 41 apart on the timetable
DL 4962 leaves 12 h 41 after UA 6137 arrives on the timetable: more than half a day, so not a connection we count.