AA 5568 then AA 1355 at DFW
Huntsville → Dallas-Fort Worth → Oklahoma City
Timetable, Dallas-Fort Worth time
14:15AA 5568 from Huntsville at the gate
13:11AA 1355 to Oklahoma City leaves the gate
22 h 56 apart on the timetable, overnight
AA 1355 leaves 22 h 56 after AA 5568 arrives on the timetable: more than half a day, so not a connection we count.