UA 263 then OO 9912 at O'Hare
Grand Rapids → Chicago → Richmond
Timetable, Chicago time
09:00UA 263 from Grand Rapids at the gate
07:30OO 9912 to Richmond leaves the gate
22 h 30 apart on the timetable, overnight
OO 9912 leaves 22 h 30 after UA 263 arrives on the timetable: more than half a day, so not a connection we count.