UA 6080 then AA 3577 at O'Hare
Sioux City → Chicago → Columbia Regional
Timetable, Chicago time
07:35UA 6080 from Sioux City at the gate
20:40AA 3577 to Columbia Regional leaves the gate
13 h 05 apart on the timetable
AA 3577 leaves 13 h 05 after UA 6080 arrives on the timetable: more than half a day, so not a connection we count.