One of the busiest and most practical terminals for passengers flying with low-cost airlines is Concourse A at Denver International Airport (DEN), where Frontier Airlines Den Terminal is based. Concourse A of the Jeppesen Terminal is the primary hub for Frontier flights, providing convenient access to security, check-in, and ticketing. With obvious signs directing travelers to check-in desks and security checkpoints, the terminal is made to be easy to use. Following security clearance, passengers can take advantage of a number of amenities, including as self-check-in kiosks, cozy seats, and a selection of food and drink options. Despite being smaller and less opulent than some of the other DEN terminals, Concourse A offers all the amenities needed for a productive and reasonably priced trip.