AA 3398 then UA 4789 at O'Hare
Columbia Regional → Chicago → Fargo
Timetable, Chicago time
20:11AA 3398 from Columbia Regional at the gate
19:45UA 4789 to Fargo leaves the gate
23 h 34 apart on the timetable, overnight
UA 4789 leaves 23 h 34 after AA 3398 arrives on the timetable: more than half a day, so not a connection we count.