Look at AAL673… 5 hours for a 600 mile flight? 
… shows departure 3:10, arrival 8:28… should be ariving at about 5:00 PM…
It appears you are talking about the MIA to MBPV leg (e.g. flightaware.com/live/flight/AAL6 … /KMIA/MBPV). If this is correct, then “At least part of this flight occurs outside of FlightAware’s service area. Information on this page may be unreliable.”
Note the time zone information following the listed times…
Departure is EDT (Eastern Daylight Time).
Arrival is in “Zulu time” (GMT or Greenwich Mean Time).
Subtract 4 hours from Zulu time to get the Eastern Daylight time.
A GMT arrival time of 8:28 converts to an EDT of 4:28. That’s about an hour and 20 minutes which sounds about right.
Damiross: Yah I know, can’t guarantee any accuracy
Needlnose: Thanks, I thought that all times would be the same. Was wondering if they changed to a Cessna or something… 