AA 2541 then AA 3141 at O'Hare
Newark → Chicago → San Francisco
Timetable, Chicago time
16:17AA 2541 from Newark at the gate
17:10AA 3141 to San Francisco leaves the gate
53 min apart on the timetable
The last days
AA 2541 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.