American Airlines has round-trip flights from Dallas (DFW) to Phoenix, Miami, San Diego, Colorado Springs, Cleveland, or Tampa (PHX, MIA, SAN, COS, CLE, TPA) for $132-$158, NONSTOP. Most flights are between January and March, but Colorado Springs is between September and February. Extended weekends available. Origin/Destination reversible.
A Carry-on bag and also a personal item is allowed for free on American. You can avoid paying for seat selection by accepting the randomly assigned seat at the gate.