We left Memphis on the 6 am Delta flight through Atlanta and arrived at Beef Island at 6:30 pm.

Thanks to all the tips garnered here over the years, I've become pretty good at spotting good fares. So use ITA Matrix and Kayak, clear your cookies frequently, shop for tickets after midnight on Tuesday and Wednesday, don't shop on Sunday, etc. Fly midweek (usually, but not always cheaper) and be flexible with your dates.