DL 1391 then JL 311 at Philadelphia
Detroit → Philadelphia → Wilmington (ILG)
Timetable, Philadelphia time
16:35DL 1391 from Detroit at the gate
13:30JL 311 to Wilmington (ILG) leaves the gate
20 h 55 apart on the timetable, overnight
JL 311 leaves 20 h 55 after DL 1391 arrives on the timetable: more than half a day, so not a connection we count.