Most of the larger planes land approximately from 1 to 3 PM. Most of the flights operate as daily flights, so the day of the week doesn't make a huge difference, but there are usually a few more flights on the weekends. By May it won't be as big a deal as now, but also check the cruise ship schedule for when you want to go. If there are more than two ships in, Sunset can get REALLY crazy. Best bet, if you can, is to pick a day when there are no ships in.