AA 3492 then AA 3353 at O'Hare
Champaign → Chicago → Baltimore
Timetable, Chicago time
13:56AA 3492 from Champaign at the gate
14:44AA 3353 to Baltimore leaves the gate
48 min apart on the timetable
The last days
AA 3492 and AA 3353 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.