UA 4592 then AA 2165 at O'Hare
Omaha → Chicago → Hartford
Timetable, Chicago time
20:36UA 4592 from Omaha at the gate
19:59AA 2165 to Hartford leaves the gate
23 h 23 apart on the timetable, overnight
AA 2165 leaves 23 h 23 after UA 4592 arrives on the timetable: more than half a day, so not a connection we count.