Island Birds took about 5 days to get back to me. Was $475 each way, non stop to Tortola. It's just the two of us, we are using the ferry.
I always call island vendors. $475 for two STT to EIS? That was a deal.
Actually I got it wrong, it was $425 each way, just checked my email. For two, a private charter. The route is EIS to Anegada, sorry thought we were talking about getting to Anegada from Tortola.
That makes complete sense and what I would expect for that route. My mistake on airports. Good luck in your travels!!