Operating out of Terminal A of Charlotte Douglas International Airport (CLT) is Frontier Airlines. With gates ideally situated for simple boarding and short walking distances, this Frontier Airlines CLT Terminal is devoted to low-cost airlines. Travelers on Frontier flights should anticipate quick check-in lines, TSA security inspections, and access to standard facilities like vending machines and restrooms. Although Terminal A at CLT is more efficient than other terminals, there aren't many options for dining and shopping. Before heading to their gate, travelers can enjoy more extensive dining and shopping options at the main terminal for enhanced convenience.