UA 3922 then AA 3694 at O'Hare
Savannah → Chicago → Champaign
Timetable, Chicago time
02:36UA 3922 from Savannah at the gate
19:15AA 3694 to Champaign leaves the gate
16 h 39 apart on the timetable
AA 3694 leaves 16 h 39 after UA 3922 arrives on the timetable: more than half a day, so not a connection we count.