And as a long time south Florida resident, I can tell you that fares ease up around April 1, give or take every year, but right now, if you get creative, you can find lower fares to south Florida even now, just play around with it, as suggested above.

Try this site for finding the lowest fares available, it will give you the lowest fares available on the legacy carriers for a 30 day window. (Choose MONTH LONG SEARCH for the best results, and it will allow you to narrow results to one carrier, such as DL.)