AA 1353 then UA 4772 at O'Hare
San Francisco → Chicago → Columbia Regional
Timetable, Chicago time
13:44AA 1353 from San Francisco at the gate
12:45UA 4772 to Columbia Regional leaves the gate
23 h 01 apart on the timetable, overnight
UA 4772 leaves 23 h 01 after AA 1353 arrives on the timetable: more than half a day, so not a connection we count.