DL 2305 then AA 5591 at DFW
Boston → Dallas-Fort Worth → Houston
Timetable, Dallas-Fort Worth time
23:03DL 2305 from Boston at the gate
22:43AA 5591 to Houston leaves the gate
23 h 40 apart on the timetable, overnight
AA 5591 leaves 23 h 40 after DL 2305 arrives on the timetable: more than half a day, so not a connection we count.