AA 462 then UA 4550 at O'Hare
New York LaGuardia → Chicago → Columbia Regional
Timetable, Chicago time
07:49AA 462 from New York LaGuardia at the gate
21:25UA 4550 to Columbia Regional leaves the gate
13 h 36 apart on the timetable
UA 4550 leaves 13 h 36 after AA 462 arrives on the timetable: more than half a day, so not a connection we count.