AA 1922 then AA 3449 at DFW
Las Vegas → Dallas-Fort Worth → Tallahassee
Timetable, Dallas-Fort Worth time
19:06AA 1922 from Las Vegas at the gate
12:19AA 3449 to Tallahassee leaves the gate
17 h 13 apart on the timetable, overnight
AA 3449 leaves 17 h 13 after AA 1922 arrives on the timetable: more than half a day, so not a connection we count.