AA 1599 then AA 3636 at DFW
Jacksonville → Dallas-Fort Worth → Cedar Rapids
Timetable, Dallas-Fort Worth time
15:47AA 1599 from Jacksonville at the gate
15:40AA 3636 to Cedar Rapids leaves the gate
23 h 53 apart on the timetable, overnight
AA 3636 leaves 23 h 53 after AA 1599 arrives on the timetable: more than half a day, so not a connection we count.