UA 6080 then AA 2200 at O'Hare
Sioux City → Chicago → Miami
Timetable, Chicago time
07:35UA 6080 from Sioux City at the gate
19:50AA 2200 to Miami leaves the gate
12 h 15 apart on the timetable
AA 2200 leaves 12 h 15 after UA 6080 arrives on the timetable: more than half a day, so not a connection we count.