According to Marketwatch (whatever that is), the best time to buy your air fare when flying from the states to the Caribbean is exactly 207 days before your planned departure. How they know that I have no idea, but this sounds good. So, let's say you were planning to leave on Sunday, March 15, 2020 for St. Maarten, then the magical date for the lowest air fares would be precisely on August 22nd which is one week from this Thursday. So, you're really close. I might wait another two weeks and see what gives.