AA 3243 then F9 3990 at DFW
Pensacola → Dallas-Fort Worth → Detroit
Timetable, Dallas-Fort Worth time
14:59AA 3243 from Pensacola at the gate
14:55F9 3990 to Detroit leaves the gate
23 h 56 apart on the timetable, overnight
F9 3990 leaves 23 h 56 after AA 3243 arrives on the timetable: more than half a day, so not a connection we count.