DL 2305 then AA 1500 at DFW
Boston → Dallas-Fort Worth → Nashville
Timetable, Dallas-Fort Worth time
23:03DL 2305 from Boston at the gate
21:40AA 1500 to Nashville leaves the gate
22 h 37 apart on the timetable, overnight
AA 1500 leaves 22 h 37 after DL 2305 arrives on the timetable: more than half a day, so not a connection we count.