AA 1645 then UA 5191 at O'Hare
Orlando → Chicago → Lancaster
Timetable, Chicago time
13:50AA 1645 from Orlando at the gate
08:50UA 5191 to Lancaster leaves the gate
19 h apart on the timetable, overnight
UA 5191 leaves 19 h after AA 1645 arrives on the timetable: more than half a day, so not a connection we count.