DL 2305 then AA 6251 at DFW
Boston → Dallas-Fort Worth → Shreveport
Timetable, Dallas-Fort Worth time
23:03DL 2305 from Boston at the gate
21:38AA 6251 to Shreveport leaves the gate
22 h 35 apart on the timetable, overnight
AA 6251 leaves 22 h 35 after DL 2305 arrives on the timetable: more than half a day, so not a connection we count.