Use ITA Matrix and search using a few local airports from you in Florida. Generally, if you use a hub, it is much cheaper. Use the open search function by stipulating a window of time and tell it a range of days you want to go for, e.g.: I want to look at a 1 month window starting August 8 (to September 8) and I am open to going for at least 10 nights up to 15 nights...search using "10-15" under the nights/days option. Include a few airport codes that are close to you...It will spit out some options on a calendar. Hover over the dates and it will pop up how much it is round trip based on how many nights you stay and which day you leave. Once you find the combo you want, click it, and it will take you to the airline and pricing options along with number of stops. Find what you like then book direct. That allows you to plan your trip and capture the best pricing that works for you. I always get my tickets to SE Asia this way, and for the dates that I need - not something that no one else wants.
Good luck and please let me know if you have any Q's!
Thanks for the info., I was not familiar with ITA Matrix. I'm playing around with it now & think this will be super-helpful in planning future trips--thanks again!