Planning a trip to the Upstate of South Carolina? Choosing the right airport can save you hours of driving and get your adventure started sooner. This local guide compares Greenville-Spartanburg (GSP), Asheville (AVL), Charlotte (CLT), and Atlanta (ATL), helping you decide which airport is best for visiting Greenville, Table Rock State Park, Clemson, Lake Jocassee, and the Blue Ridge Mountains.