DL 1156 then DL 5676 at Boston
Austin → Boston → Richmond
Timetable, Boston time
19:03DL 1156 from Austin at the gate
18:10DL 5676 to Richmond leaves the gate
23 h 07 apart on the timetable, overnight
DL 5676 leaves 23 h 07 after DL 1156 arrives on the timetable: more than half a day, so not a connection we count.