AA 4431 then DL 1366 at Atlanta
New York LaGuardia → Atlanta → Chattanooga
Timetable, Atlanta time
21:15AA 4431 from New York LaGuardia at the gate
20:30DL 1366 to Chattanooga leaves the gate
23 h 15 apart on the timetable, overnight
DL 1366 leaves 23 h 15 after AA 4431 arrives on the timetable: more than half a day, so not a connection we count.