Hartsfield–Jackson Atlanta International Airport now the airport's second largest carrier. In May 2001 construction of an over fifth runway (10–28) began. It was completed at a cost of $1.28 billion and opened on May 27, 2006. It bridges Interstate 285 (the Perimeter) on the airport's south side, making Hartsfield–Jackson the nation's only civil airport to have a runway above an interstate (although Runway 17R/35L at Stapleton International Airport in Denver, Colorado crossed Interstate 70 until that airport closed in 1995). The massive project, which involved putting fill dirt eleven stories high in some places, destroyed some surrounding neighborhoods and dramatically changed the scenery of
Wilmington International Airport using YS-11, FH-227 and Boeing 737 aircraft. Piedmont was acquired by USAir in 1989; USAir was renamed US Airways in 2005, and merged with American Airlines in 2015. In addition to flights to its main regional hub at Charlotte Douglas International Airport, US Airways introduced three daily flights between Wilmington and La Guardia Airport in New York City during the 2000s following lobbying from the Wilmington community. US Airways also introduced nonstop service to Ronald Reagan Washington National Airport in March 2011. American Eagle began service between Wilmington and Chicago O'Hare International Airport in July 2011 after the airport authority