The 11 am ferry will be a close call , for the 2:20 flight and Very Bad if that is an American Airlines Flight -- any delays in ferry schedule or C&I in STT at dock will be a problem.
The STT airport can also be crowded with people as quite a few flights leave at the same time and C&I then TSA can have LONG lines.

You should check the times and ferries available - https://bestofbvi.com/bvi-ferry-schedules/?from=St-Thomas&to=Tortola

Good Luck.

Last edited by LocalSailor; 12/03/2019 04:22 PM. Reason: spelling