OO 6058 then UA 751 at O'Hare
Sioux City → Chicago → Portland (Oregon)
Timetable, Chicago time
10:13OO 6058 from Sioux City at the gate
09:00UA 751 to Portland (Oregon) leaves the gate
22 h 47 apart on the timetable, overnight
UA 751 leaves 22 h 47 after OO 6058 arrives on the timetable: more than half a day, so not a connection we count.