AA 4571 then AA 3141 at O'Hare
Grand Rapids → Chicago → San Francisco
Timetable, Chicago time
14:44AA 4571 from Grand Rapids at the gate
17:10AA 3141 to San Francisco leaves the gate
2 h 26 apart on the timetable
The last days
AA 4571 and AA 3141 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.