AA 1670 then UA 4645 at O'Hare
Orlando → Chicago → Fort Wayne
Timetable, Chicago time
13:53AA 1670 from Orlando at the gate
11:25UA 4645 to Fort Wayne leaves the gate
21 h 32 apart on the timetable, overnight
UA 4645 leaves 21 h 32 after AA 1670 arrives on the timetable: more than half a day, so not a connection we count.