DL 2305 then AA 1758 at DFW
Boston → Dallas-Fort Worth → Memphis
Timetable, Dallas-Fort Worth time
23:03DL 2305 from Boston at the gate
22:11AA 1758 to Memphis leaves the gate
23 h 08 apart on the timetable, overnight
AA 1758 leaves 23 h 08 after DL 2305 arrives on the timetable: more than half a day, so not a connection we count.