DL 4244 then UA 4500 at Detroit
Escanaba → Detroit → Washington
Timetable, Detroit time
07:32DL 4244 from Escanaba at the gate
19:45UA 4500 to Washington leaves the gate
12 h 13 apart on the timetable
UA 4500 leaves 12 h 13 after DL 4244 arrives on the timetable: more than half a day, so not a connection we count.