F9 1439 then AA 1242 at Phoenix
Salt Lake City → Phoenix → Philadelphia
Timetable, Phoenix time
00:18F9 1439 from Salt Lake City at the gate
00:10AA 1242 to Philadelphia leaves the gate
23 h 52 apart on the timetable, overnight
AA 1242 leaves 23 h 52 after F9 1439 arrives on the timetable: more than half a day, so not a connection we count.