Option 1: I can fly direct to STT but am nervous about finding a private air charter from STT to Anegada. I can't get Island Birds to answer the phone. Another private charter quoted me $10k roundtrip so I'm nervous about booking to STT and not having options.

Option 2: Fly to EIS via SJU. More options to get to Anegada from EIS, but now I have to worry about dealing with Silver or Cape Air.

From the website, looks like roundtrip on Island Birds from STT to Anegada is $2,750 vs $850 from EIS. Does this seem ballpark correct for what I should expect?

I wish Island Birds would answer the phone. Flying direct into STT would be a lot more convenient.