AA 1673 then DL 3145 at Detroit
Phoenix → Detroit → Birmingham (Alabama)
Timetable, Detroit time
16:55AA 1673 from Phoenix at the gate
16:45DL 3145 to Birmingham (Alabama) leaves the gate
23 h 50 apart on the timetable, overnight
DL 3145 leaves 23 h 50 after AA 1673 arrives on the timetable: more than half a day, so not a connection we count.