The fine people over at smartertravel.com have uncovered another interesting deal from Spirit Airlines. In this case they are offering $48 off flights for travel between September 3 through October 25, 2008, and $24 off travel between June 9 through September 2, 2008. The deal expires at midnight on June 7, so you’ve got to act fast.

It’s a bit complicated, so you should check out the full description of the Spirit Airlines deal here. You’ve got to enter a code of 48HOURS (all caps, no spaces) in the Promotion Code box when going for the $48 deal, and 24HOURS if you are booking a flight for travel up to September 2 to get the $24 off.

In case you aren’t too familiar with them, Spirit Airlines is based in Florida and most of their flights are around the Caribbean and Central America, although they do serve 42 destinations including many United States cities far from Florida.