UA 3905 then UA 1421 at O'Hare
Cleveland → Chicago → Fort Lauderdale
Timetable, Chicago time
11:20UA 3905 from Cleveland at the gate
07:00UA 1421 to Fort Lauderdale leaves the gate
19 h 40 apart on the timetable, overnight
UA 1421 leaves 19 h 40 after UA 3905 arrives on the timetable: more than half a day, so not a connection we count.