At the risk of hijacking AAerSTL's thread, be aware that other origins also have low fares to ZMU.

For example, using 23APR - 27APR, CMH, IAH, DFW, MSP, and CLE all have sub $410 fares. Many more cities, such as SDF, ORD, PHL, and CVG, are available under $445.

YMMV.