AA 2354 then AA 5133 at Philadelphia
Tampa → Philadelphia → Richmond
Timetable, Philadelphia time
13:13AA 2354 from Tampa at the gate
14:06AA 5133 to Richmond leaves the gate
53 min apart on the timetable
The last days
AA 2354 and AA 5133 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.