AA 4002 then UA 6106 at O'Hare
Northwest Arkansas → Chicago → Trenton
Timetable, Chicago time
07:15AA 4002 from Northwest Arkansas at the gate
20:00UA 6106 to Trenton leaves the gate
12 h 45 apart on the timetable
UA 6106 leaves 12 h 45 after AA 4002 arrives on the timetable: more than half a day, so not a connection we count.