OO 6058 then UA 5477 at O'Hare
Sioux City → Chicago → Oklahoma City
Timetable, Chicago time
09:24OO 6058 from Sioux City at the gate
08:50UA 5477 to Oklahoma City leaves the gate
23 h 26 apart on the timetable, overnight
UA 5477 leaves 23 h 26 after OO 6058 arrives on the timetable: more than half a day, so not a connection we count.