OO 6058 then CV 251 at O'Hare
Sioux City → Chicago → Dallas-Fort Worth
Timetable, Chicago time
09:24OO 6058 from Sioux City at the gate
22:10CV 251 to Dallas-Fort Worth leaves the gate
12 h 46 apart on the timetable
CV 251 leaves 12 h 46 after OO 6058 arrives on the timetable: more than half a day, so not a connection we count.