AA 6311 then OO 9917 at O'Hare
Columbus (Ohio) → Chicago → Cedar Rapids
Timetable, Chicago time
11:00AA 6311 from Columbus (Ohio) at the gate
15:00OO 9917 to Cedar Rapids leaves the gate
4 h apart on the timetable
The last days
AA 6311 and OO 9917 weren’t both flown 15 min to 12 h apart in the last 21 days.
Statistics from past flights, not live flight information. Always check times and your connection with your airline, and don’t base travel or booking decisions on these numbers.