DL 5213 then DL 2578 at Detroit
Norfolk → Detroit → Austin
Timetable, Detroit time
07:44DL 5213 from Norfolk at the gate
19:50DL 2578 to Austin leaves the gate
12 h 06 apart on the timetable
DL 2578 leaves 12 h 06 after DL 5213 arrives on the timetable: more than half a day, so not a connection we count.