AA 3236 then AA 4148 at Miami
San Francisco → Miami → Jacksonville
Timetable, Miami time
17:08AA 3236 from San Francisco at the gate
18:52AA 4148 to Jacksonville leaves the gate
1 h 44 apart on the timetable
The last days
AA 3236 and AA 4148 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.