Qatar Airways DEN Terminal Denver International Airport’s (DEN) Terminal A is home to Qatar Airways. Because Terminal A can accommodate both domestic and international travel, it serves as a vital hub for Denver-based Qatar Airways. Travelers on Qatar Airways flights have access to a number of facilities, such as eateries, shops, and cozy lounges. Traveling is made easy with the terminal’s quick security and check-in procedures. For guests flying with Qatar Airways to and from Denver, Terminal A offers a pleasant and comfortable atmosphere with easy access to ground transportation and other airport facilities.