Frontier Airlines DFW Terminal Operating out of Dallas/Fort Worth International Airport's Terminal E is Frontier Airlines DFW Terminal (DFW). Low-cost airlines utilize this terminal most often, and it offers Frontier travelers basic amenities including check-in desks, baggage claim, and dining options. Although Terminal E is smaller than other DFW terminals, it provides effective security and a more laid-back environment. Passengers should budget more for Frontier Airlines' additional expenses for checked baggage, seat selection, and other services. The terminal provides travelers with modest dining and shopping options prior to their trip, and free Wi-Fi is provided.