UA 5210 then AA 1936 at O'Hare
Saginaw → Chicago → Newark
Timetable, Chicago time
14:15UA 5210 from Saginaw at the gate
13:14AA 1936 to Newark leaves the gate
22 h 59 apart on the timetable, overnight
AA 1936 leaves 22 h 59 after UA 5210 arrives on the timetable: more than half a day, so not a connection we count.