UA 6080 then AA 3222 at O'Hare
Sioux City → Chicago → Baltimore
Timetable, Chicago time
07:35UA 6080 from Sioux City at the gate
21:00AA 3222 to Baltimore leaves the gate
13 h 25 apart on the timetable
AA 3222 leaves 13 h 25 after UA 6080 arrives on the timetable: more than half a day, so not a connection we count.