Wow....did not expect this when I first asked the question. It appears DL200 will not leave SJU until this afternoon. Since my wife and I have booked DL200 for later this year, I have followed it when have time on flightaware and have wondered about things such as a medical emergency as the flight is so long in flight and above water for such a long period.

Wonder if the flight delay is due to crew rest, although there are two full crews on board?