F9 2021 then DL 916 at Detroit
Philadelphia → Detroit → Las Vegas
Timetable, Detroit time
00:05F9 2021 from Philadelphia at the gate
20:59DL 916 to Las Vegas leaves the gate
20 h 54 apart on the timetable
DL 916 leaves 20 h 54 after F9 2021 arrives on the timetable: more than half a day, so not a connection we count.