UA 3922 then UA 5813 at O'Hare
Tampa → Chicago → Lexington
Timetable, Chicago time
11:35UA 3922 from Tampa at the gate
07:40UA 5813 to Lexington leaves the gate
20 h 05 apart on the timetable, overnight
UA 5813 leaves 20 h 05 after UA 3922 arrives on the timetable: more than half a day, so not a connection we count.