Washington Dulles International Airport Chantilly in Fairfax County. The airport serves the Washington metropolitan area. Dulles is one of the three major airports in the larger Baltimore–Washington metropolitan area with more than 21 million passengers a year. Dulles has the most international passenger traffic of any airport in the Mid-Atlantic outside the New York metropolitan area, including approximately 90% of the international passenger traffic in the Baltimore-Washington region. On a typical day, more than 60,000 passengers pass through Dulles to and from more than 125 destinations around the world. Dulles Airport has recently surpassed Ronald Reagan Washington National Airport (DCA) in monthly passenger boardings
Miles City Airport Miles City Airport Miles City Airport or Frank Wiley Field is a city-owned airport two miles northwest of Miles City, in Custer County, Montana. The airport was served by one airline, subsidized by the Essential Air Service program. EAS subsidies ended July 15, 2013 due to subsidy per passenger exceeding $1000, leaving Miles City without scheduled air service. Federal Aviation Administration records say the airport had 264 passenger boardings (enplanements) in calendar year 2008, 891 in 2009 and 1,033 in 2010. The National Plan of Integrated Airport Systems for 2011–2015 called it a "general aviation" airport (the "commercial service" category