Washington Dulles International Airport passengers. Dulles was once assigned the airport code DIA, with each letter corresponding to the initials of Dulles International Airport. However, when handwritten, it was often misread as DCA, the code for nearby Ronald Reagan Washington National Airport. It was later revised to IAD to avoid confusion. The airport's terminal complex consists of a main terminal and two midfield terminal buildings: Concourses A/B and C/D. The entire terminal complex has 123 gates and 16 hardstand locations from which passengers can board or disembark using the airport's plane mate vehicles. Conceived in early planning sessions in 1959, Dulles is one of
Circle City Airport Circle City Airport Circle City Airport is a state owned, public use airport located in Circle (also known as Circle City), in the Yukon-Koyukuk Census Area of the U.S. state of Alaska. It is also known as Circle City (New) Airport. Scheduled commercial airline service is subsidized by the Essential Air Service program. As per Federal Aviation Administration records, the airport had 303 passenger boardings (enplanements) in calendar year 2008, 377 enplanements in 2009, and 355 in 2010. It is included in the National Plan of Integrated Airport Systems for 2011–2015, which categorized it as a "general aviation" airport (the