AA 3258 then 8C 1231 at Miami
Houston → Miami → San Juan
Timetable, Miami time
13:23AA 3258 from Houston at the gate
15:008C 1231 to San Juan leaves the gate
1 h 37 apart on the timetable
The last days
AA 3258 and 8C 1231 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.