Allegiant Flights

This morning I noticed two Allegiant A320's take off from Traverse City, MI (TVC) going nonstop to San Juan, PR (SJU) (AAY8008 and 8011). My first thought was that it'd be AWESOME to be able to fly nonstop to Puerto Rico from home, but then I thought there's no way there are enough people flying from Traverse City to San Juan to fill two A320's. I also can't find or book that route anywhere. Anyone have any thoughts on this?

Thanks,
G