AA 623 then AA 1529 at Philadelphia
Tampa → Philadelphia → Las Vegas
Timetable, Philadelphia time
14:54AA 623 from Tampa at the gate
18:05AA 1529 to Las Vegas leaves the gate
3 h 11 apart on the timetable
The last days
AA 623 and AA 1529 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.