AA 1680 then AA 1355 at DFW
Des Moines → Dallas-Fort Worth → Oklahoma City
Timetable, Dallas-Fort Worth time
17:40AA 1680 from Des Moines at the gate
13:11AA 1355 to Oklahoma City leaves the gate
19 h 31 apart on the timetable, overnight
AA 1355 leaves 19 h 31 after AA 1680 arrives on the timetable: more than half a day, so not a connection we count.