DL 3015 then AA 4446 at Atlanta
Knoxville → Atlanta → New York LaGuardia
Timetable, Atlanta time
06:45DL 3015 from Knoxville at the gate
06:00AA 4446 to New York LaGuardia leaves the gate
23 h 15 apart on the timetable, overnight
AA 4446 leaves 23 h 15 after DL 3015 arrives on the timetable: more than half a day, so not a connection we count.