AA 2146 then LF 8509 at O'Hare
Boston → Chicago → Charlotte
Timetable, Chicago time
08:00AA 2146 from Boston at the gate
14:30LF 8509 to Charlotte leaves the gate
6 h 30 apart on the timetable
Today
From the airport’s board at 17:53 Chicago time
08:00AA 2146 is cancelled
14:30LF 8509 due to leave, no estimate yet
The last days
AA 2146 and LF 8509 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.