AA 2357 then AA 3449 at DFW
Denver → Dallas-Fort Worth → Tallahassee
Timetable, Dallas-Fort Worth time
13:46AA 2357 from Denver at the gate
12:19AA 3449 to Tallahassee leaves the gate
22 h 33 apart on the timetable, overnight
AA 3449 leaves 22 h 33 after AA 2357 arrives on the timetable: more than half a day, so not a connection we count.