AA 4135 then UA 5191 at O'Hare
Tulsa → Chicago → Lancaster
Timetable, Chicago time
12:41AA 4135 from Tulsa at the gate
08:50UA 5191 to Lancaster leaves the gate
20 h 09 apart on the timetable, overnight
UA 5191 leaves 20 h 09 after AA 4135 arrives on the timetable: more than half a day, so not a connection we count.