Frontier Airlines Denver International Airport Terminal Concourse A is the base of operations for Frontier Airlines. Situated within the main terminal complex, Concourse A provides a plethora of amenities and services for travelers. Passengers can find a wide range of food options, including full-service restaurants and quick snacks, as well as a large number of retail establishments for shopping, on Concourse A. In addition, there are cozy seating sections, free Wi-Fi, and charging stations throughout the concourse. It's advised to go to Denver International Airport well in advance of the departure of your trip to give yourself enough time for pre-flight procedures such as security screening and check-in. This will ensure a seamless travel experience. Before leaving for the airport, always confirm the most recent flight and terminal information as they may occasionally change.