AA 3158 then AA 3449 at DFW
Austin → Dallas-Fort Worth → Tallahassee
Timetable, Dallas-Fort Worth time
13:08AA 3158 from Austin at the gate
12:19AA 3449 to Tallahassee leaves the gate
23 h 11 apart on the timetable, overnight
AA 3449 leaves 23 h 11 after AA 3158 arrives on the timetable: more than half a day, so not a connection we count.