you didn't state what day you will be leaving. Obviously, because of the timeshare industry on SXM, weekends are the busiest at the airport. If leaving midweek, much less crowded. Weekdays including late afternoon is the busiest time to be leaving. I would say you should probably figure at least 2.5 hours for departure weekends.....and weekdays two hours should be enough. Also...hopefully by February, the airport may be further along with rennovation, and will be more spacious than the areas they are using since the hurricane. Also....February, especially during the school vacations, is a huge week in SXM. Plan accordingly.