Washington Dulles International Airport 1980s the original design, featuring mobile lounges to meet each plane, was no longer well-suited to Dulles' role as a hub airport. Instead, midfield concourses were added to allow passengers to walk between connecting flights without visiting the main terminal. Mobile lounges were still used for international flights and to transport passengers between the midfield concourses and the main terminal. An underground tunnel (consisting of a passenger walkway and moving sidewalks) which links the main terminal and Concourse B was opened in 2004. The Metropolitan Washington Airports Authority (MWAA) began a renovation program for the airport including a new security
Kalispell City Airport Kalispell City Airport Kalispell City Airport is a city-owned public-use airport located one nautical mile (1.85 km) south of the central business district of Kalispell, a city in Flathead County, Montana, United States. This airport is included in the FAA's National Plan of Integrated Airport Systems for 2009–2013, which categorized it as a "general aviation" facility. Kalispell City Airport covers an area of at an elevation of 2,932 feet (894 m) above mean sea level. It has one runway designated 13/31 with an asphalt surface measuring 3,600 by 60 feet (1,097 x 18 m). For the 12-month period ending August