AA 2538 then AA 2255 at Charlotte
Tampa → Charlotte → Pittsburgh
Timetable, Charlotte time
08:53AA 2538 from Tampa at the gate
12:47AA 2255 to Pittsburgh leaves the gate
3 h 54 apart on the timetable
The last days
AA 2538 and AA 2255 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.