DL 1496 then AA 1751 at Phoenix
Salt Lake City → Phoenix → Washington National
Timetable, Phoenix time
00:58DL 1496 from Salt Lake City at the gate
00:51AA 1751 to Washington National leaves the gate
23 h 53 apart on the timetable, overnight
AA 1751 leaves 23 h 53 after DL 1496 arrives on the timetable: more than half a day, so not a connection we count.