We transited through STT yesterday (Wednesday) on our way home from 18 days in the BVI. We flew Islands Birds EIS-STT (can't recommend them enough). The transition in through customs was smooth and easy (we were the only international arrival). STT however, was an absolute ZOO. We have never encountered lines mid-week. Yesterday, at 12:30 pm, there was not only a line at Delta check-in (thank goodness we are Sky Priority), but long customs/immigration lines as well as bag drop lines. We have Global Entry, and know to bring our cards, so were able to take advantage of a shorter line there, as well as TSA precheck. Even so, it still took us almost an hour for the entire process. Last month it was less than 30 minutes curb to gate at STT. No social distancing anywhere and the gate area was super crowded. Chatted with the TSA agent as we had a short wait at pre-check due to passengers not understanding that they had to drop their bags somewhere before heading to TSA check points (!) - she said that mid week was now like the weekend pre-COVID and that weekends were an absolute disaster. We are planning a June return to BVI but after our experience at STT yesterday we are planning to route through SJU - especially now that American is increasing their STT flight load. We'll be skipping the USVI until things settle down.