AA 3876 then AA 2977 at DFW
Chattanooga → Dallas-Fort Worth → Miami
Timetable, Dallas-Fort Worth time
13:45AA 3876 from Chattanooga at the gate
17:30AA 2977 to Miami leaves the gate
3 h 45 apart on the timetable
The last days
AA 3876 and AA 2977 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.