OO 6058 then UA 4439 at O'Hare
Sioux City → Chicago → Cedar Rapids
Timetable, Chicago time
09:24OO 6058 from Sioux City at the gate
09:00UA 4439 to Cedar Rapids leaves the gate
23 h 36 apart on the timetable, overnight
UA 4439 leaves 23 h 36 after OO 6058 arrives on the timetable: more than half a day, so not a connection we count.