AA 3523 then AA 4403 at O'Hare
Baltimore → Chicago → Raleigh-Durham
Timetable, Chicago time
12:59AA 3523 from Baltimore at the gate
13:25AA 4403 to Raleigh-Durham leaves the gate
26 min apart on the timetable
The last days
AA 3523 and AA 4403 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.