That's why I was asking which airports she would fly from and to. We're using Allegiant from Chattanooga to Tampa and then Orlando back to Tampa. It is a few dollars more that way, but the flight times are better. Knoxville to Tampa has good times, but the flights haven't dropped in price for the dates we need them yet. But I'm watching! The $19 each way is without taxes. A round trip ticket costs about $70 once you add the taxes. Some dates are still $59, $49 or $29, but they are constantly changing. By the way the website link is here.

ETA: I just looked and didn't see flights out of Asheville. There are flights out of the TriCities, which is near Bristol TN/Bristol VA and also Columbia and Greenville/Spartanburg, SC area. They do fly out of Greensboro and Willmington, NC though.