AA 3492 then AA 843 at O'Hare
Champaign → Chicago → Washington National
Timetable, Chicago time
13:56AA 3492 from Champaign at the gate
14:55AA 843 to Washington National leaves the gate
59 min apart on the timetable
The last days
AA 3492 and AA 843 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.