Check all your options and you will find cheap airfare to Florida.  There are some low budget airlines that cut the extra comfort featured in some major airlines so they can cut the price. 

If you must have the comfort then you will surely want to search all the major airline websites and check their prices.  Special deals will appear every once in a while from the major vendors.  These are usually available around two weeks in advance of the flight.  Make sure you get them as soon as they are released.

Keep checking back on these sites regularly and wait for the special deals.  They go quickly once they come up.  Regularly means at least twice a day, maybe three times a day.

After this, search all the big travel websites.  They operate similarly to travel agencies where they actually give part of the profits to the customers.  They normally include a chart that compares all the different prices offered by websites.

Another choice is to use websites that constantly monitor the lowest prices and regularly mail the updates to members.  You must become a member of the site to use these features.  You could also try some phone calls to some of the travel websites.  This proves to be a luck of a draw game depending on who you talk to, but you could end up talking to an official of the site and they may be willing to give you a special deal.

Then there are the websites that let you put your own price.  They do all the work for you to get your ticket for the price that you name.  Usually these tickets will be non-refundable no matter if the flight does or does not work for you.

So, you have a lot of options.  Choose your own adventure.