FLL-TPA-EWR-SEA-EWR-TPA-FLL $203 RT AI on UA Jan/Fed weekends available as of this posting with possible 1 or 0 day stay. Cheaper by $6 without the TPA stops. Grab them while you can.
FLL-DFW-LAS-DFW-FLL $162 RT AI on AA. Mostly January dates with possible 1 or 0 day stay.