AA 1397 then AA 1355 at DFW
Houston → Dallas-Fort Worth → Oklahoma City
Timetable, Dallas-Fort Worth time
15:31AA 1397 from Houston at the gate
13:11AA 1355 to Oklahoma City leaves the gate
21 h 40 apart on the timetable, overnight
AA 1355 leaves 21 h 40 after AA 1397 arrives on the timetable: more than half a day, so not a connection we count.