4 hour flight stretch out to 6 hours ?

Aviation Airlines
1

flightaware.com/live/flight/AAL1639 :arrow_right: From KJFK To TJSJ Its normal flight time is 3 Hr. 50 min. and this flight is going to take 5 Hrs 51 minutes in a Boeing 757-200 !

2

Is this the flight you are talking about? flightaware.com/live/flight/AAL1 … /KJFK/TJSJ

3

from aa.com

AMERICAN AIRLINES - Flight #1639 FLIGHT STATUS - ARRIVED
Detailed Flight Information

AMERICAN AIRLINES Departing
JFK New York 07/10/2009 7:30 PM 11:44 PM
Arriving
SJU San Juan 07/11/2009 11:45 PM 3:15 AM

Looks like multiple original flight plans confusing FA. The flight was 4 hours late (I think) but the times still don’t add up. Isn’t PR one hour ahead of NY ?