AA 3911 then AA 3449 at DFW
Houston → Dallas-Fort Worth → Tallahassee
Timetable, Dallas-Fort Worth time
15:32AA 3911 from Houston at the gate
12:19AA 3449 to Tallahassee leaves the gate
20 h 47 apart on the timetable, overnight
AA 3449 leaves 20 h 47 after AA 3911 arrives on the timetable: more than half a day, so not a connection we count.