A lot of people suspect that these fares are a come on, but if you act early enough and are very flexible in your travel dates, you really can book 'em.
Atlanta to Ft. Lauderdale iin Feb and Mar
Atlantic City to Tampa in Jan and Feb
Detroit to New York in Feb
and New York to Ft. Lauderdale in Feb
As usual, only 4 or 5 dates in each direction are valid for these crazy low fares.
This sale ends at midnight ET Jan 4.