UA 5192 then AA 9912 at O'Hare
South Bend → Chicago → Richmond
Timetable, Chicago time
11:00UA 5192 from South Bend at the gate
07:30AA 9912 to Richmond leaves the gate
20 h 30 apart on the timetable, overnight
AA 9912 leaves 20 h 30 after UA 5192 arrives on the timetable: more than half a day, so not a connection we count.