AA 9975 then F9 4439 at Philadelphia
Roanoke → Philadelphia → Fort Lauderdale
Timetable, Philadelphia time
15:24AA 9975 from Roanoke at the gate
13:52F9 4439 to Fort Lauderdale leaves the gate
22 h 28 apart on the timetable, overnight
F9 4439 leaves 22 h 28 after AA 9975 arrives on the timetable: more than half a day, so not a connection we count.