AA 581 then AA 3520 at O'Hare
Miami → Chicago → Chattanooga
Timetable, Chicago time
09:30AA 581 from Miami at the gate
19:15AA 3520 to Chattanooga leaves the gate
9 h 45 apart on the timetable
The last days
AA 581 and AA 3520 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.
Later flights to Chattanooga
No later flight to Chattanooga on the timetable.