AA 1006 then MQ 4141 at Miami
Tampa → Miami → Key West
Timetable, Miami time
07:15AA 1006 from Tampa at the gate
12:06MQ 4141 to Key West leaves the gate
4 h 51 apart on the timetable
The last days
AA 1006 and MQ 4141 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.