AA 892 then AA 1225 at Miami
Kansas City → Miami → Boston
Timetable, Miami time
09:12AA 892 from Kansas City at the gate
10:24AA 1225 to Boston leaves the gate
1 h 12 apart on the timetable
The last days
AA 892 and AA 1225 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.