AA 4381 then CV 251 at O'Hare
Grand Rapids → Chicago → Dallas-Fort Worth
Timetable, Chicago time
06:09AA 4381 from Grand Rapids at the gate
22:10CV 251 to Dallas-Fort Worth leaves the gate
16 h 01 apart on the timetable
CV 251 leaves 16 h 01 after AA 4381 arrives on the timetable: more than half a day, so not a connection we count.