AA 4190 then AA 1212 at O'Hare
Roanoke → Chicago → Boston
Timetable, Chicago time
18:15AA 4190 from Roanoke at the gate
19:13AA 1212 to Boston leaves the gate
58 min apart on the timetable
The last days
AA 4190 and AA 1212 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.