Denver International Airport

Denver International Airport (KDEN) sits 25 miles northeast of downtown Denver on the eastern plains, and is one of the largest airports in the world by land area. Commercial service is dominant — KDEN is a major hub for United, Southwest, and Frontier — and the field is generally not the Denver-area charter default. Centennial Airport (KAPA) handles almost all of the metro's business aviation volume because it's closer to the city, faster to turn, and has the FBO ecosystem dedicated to GA traffic. The six runways at KDEN are among the longest in the world — 16R/34L is 16,000 feet (the longest commercial runway in the United States), and the other five are all 12,000 feet — which is operationally meaningful for two reasons: density altitude at KDEN's 5,431-foot field elevation routinely pushes effective takeoff altitudes past 8,000 feet on summer afternoons, and the runway length headroom means even heavy ultra-long-range jets can depart at MTOW for transpacific or transatlantic legs without weight restriction. Signature and Atlantic operate the private terminals. KDEN gets event traffic for major Denver concerts, Broncos games, and large convention weeks, but for routine charter into the metro, KAPA is the right answer. Ground time to downtown Denver is 35–50 minutes.