OO 6058 then UA 359 at O'Hare
Sioux City → Chicago → Mexico City
Timetable, Chicago time
09:24OO 6058 from Sioux City at the gate
08:55UA 359 to Mexico City leaves the gate
23 h 31 apart on the timetable, overnight
UA 359 leaves 23 h 31 after OO 6058 arrives on the timetable: more than half a day, so not a connection we count.