DL 2305 then AA 2568 at DFW
Boston → Dallas-Fort Worth → San Diego
Timetable, Dallas-Fort Worth time
23:03DL 2305 from Boston at the gate
22:45AA 2568 to San Diego leaves the gate
23 h 42 apart on the timetable, overnight
AA 2568 leaves 23 h 42 after DL 2305 arrives on the timetable: more than half a day, so not a connection we count.