AA 259 then AA 9931 at Philadelphia
Lisbon → Philadelphia → Indianapolis
Timetable, Philadelphia time
14:00AA 259 from Lisbon at the gate
14:50AA 9931 to Indianapolis leaves the gate
50 min apart on the timetable
The last days
AA 259 and AA 9931 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.