AA 5089 then AA 4699 at Philadelphia
St Louis → Philadelphia → Austin
Timetable, Philadelphia time
09:19AA 5089 from St Louis at the gate
10:30AA 4699 to Austin leaves the gate
1 h 11 apart on the timetable
The last days
AA 5089 and AA 4699 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.