EK 9989 then UA 4772 at O'Hare
Liege → Chicago → Columbia Regional
Timetable, Chicago time
17:15EK 9989 from Liege at the gate
12:45UA 4772 to Columbia Regional leaves the gate
19 h 30 apart on the timetable, overnight
UA 4772 leaves 19 h 30 after EK 9989 arrives on the timetable: more than half a day, so not a connection we count.