If you want to take in the South Beach scene, here’s a $232 round-trip fare from LAX to Miami on American Airlines that includes all taxes and fees.
You need to act quickly: Although it’s for travel through May 15, you must buy tickets by Jan. 3. You must buy at least 10 days in advance. It is for travel Mondays-Saturdays.
It is subject to availability and has several blackout dates, including most March weekends.