DL 514 then AA 4994 at Phoenix
Boston → Phoenix → Durango
Timetable, Phoenix time
21:53DL 514 from Boston at the gate
16:42AA 4994 to Durango leaves the gate
18 h 49 apart on the timetable, overnight
AA 4994 leaves 18 h 49 after DL 514 arrives on the timetable: more than half a day, so not a connection we count.