Complex sentence: However, Delta Airlines ended the Wilmington flights on September 6,2007, leaving Delaware without any commercial air service once until March 7,2008, when SkyBus will begin new services from Columbus, OH and Greensboro, NC to New Castle Airport.
Split into simpler sentences: However, Delta Airlines ended the Wilmington flights on September 6,2007, leaving Delaware without any commercial air service once again. Starting at Mar.7th, 2008, Skybus will begin new services from Columbus, OH, Greensboro, NC to New Castle Airport.