Frontier Airlines operates exclusively out of Concourse A at Denver International Airport. DEN is not only the largest airport in the U.S. by land area, but it also serves as Frontier’s primary hub, supporting a significant portion of the airline’s national and international flight routes. This central location allows Frontier to offer convenient one-stop connections to nearly every region of the United States.

As part of Denver International Airport's Gate Expansion Project, Frontier’s space at Concourse A was significantly enhanced with the addition of 14 new ground-level boarding gates. These gates were designed to align with the airline’s ultra-low-cost operating model by reducing turnaround time and simplifying boarding procedures.

For travelers, this means faster boarding, fewer delays, and a streamlined experience that prioritizes efficiency over luxury.For travelers flying with Frontier Airlines, Denver International Airport (DEN) is a crucial hub that connects hundreds of destinations across the United States and beyond. Frontier is known for its low-cost fares and efficient service model, and the frontier airlines denver terminal has been purposefully designed to reflect those values. Whether you’re a seasoned traveler or flying Frontier for the first time, understanding how the Denver terminal operates can significantly enhance your experience.