AA 865 then AA 3449 at DFW
New York JFK → Dallas-Fort Worth → Tallahassee
Timetable, Dallas-Fort Worth time
15:10AA 865 from New York JFK at the gate
12:19AA 3449 to Tallahassee leaves the gate
21 h 09 apart on the timetable, overnight
AA 3449 leaves 21 h 09 after AA 865 arrives on the timetable: more than half a day, so not a connection we count.