UA 3922 then AA 3503 at O'Hare
Savannah → Chicago → Northwest Arkansas
Timetable, Chicago time
02:36UA 3922 from Savannah at the gate
15:22AA 3503 to Northwest Arkansas leaves the gate
12 h 46 apart on the timetable
AA 3503 leaves 12 h 46 after UA 3922 arrives on the timetable: more than half a day, so not a connection we count.