We’ve flown in/ferried in to the BVI in every way imaginable over the last 38 years. About 20 years ago we decided to always fly Delta to STT when flying commercially, then ferry, either public or private, to the BVI after problems on may flights through San Juan. We’ve used numerous airlines with many different reason for delays and luggage mishaps. I hope I haven’t jinxed myself with this post, but we have had ZERO issues with Delta over dozens of trips. Never a late flight that caused us to miss a ferry, not a single lost piece of luggage, and generally good flight services. Flights through San Juan have resulted in many delays (sometimes by a couple of days) for friends and more lost or delayed luggage than one can imagine. Although STT has it’s issues, we always get where we’re going pretty much on time.
P.S. For us, American always delivered the worst service with the most issues. We avoid AA like the plague.