AA 3877 then AA 2312 at DFW
Austin → Dallas-Fort Worth → Tulsa
Timetable, Dallas-Fort Worth time
20:14AA 3877 from Austin at the gate
18:11AA 2312 to Tulsa leaves the gate
21 h 57 apart on the timetable, overnight
AA 2312 leaves 21 h 57 after AA 3877 arrives on the timetable: more than half a day, so not a connection we count.