AA 4478 then WN 246 at Atlanta
New York LaGuardia → Atlanta → Chicago Midway
Timetable, Atlanta time
12:05AA 4478 from New York LaGuardia at the gate
11:20WN 246 to Chicago Midway leaves the gate
23 h 15 apart on the timetable, overnight
WN 246 leaves 23 h 15 after AA 4478 arrives on the timetable: more than half a day, so not a connection we count.