OO 6058 then UA 5873 at O'Hare
Sioux City → Chicago → Peoria
Timetable, Chicago time
09:24OO 6058 from Sioux City at the gate
22:00UA 5873 to Peoria leaves the gate
12 h 36 apart on the timetable
UA 5873 leaves 12 h 36 after OO 6058 arrives on the timetable: more than half a day, so not a connection we count.