Frontier Airlines DFW Terminal With quick check-in, quick security checks, and convenient gate access, Terminal E is renowned for its convenience and contemporary amenities, providing travelers with a hassle-free travel experience. Frontier Airlines is a well-liked alternative for travelers on a tight budget because of its ultra-low-cost carrier concept, which concentrates on offering inexpensive travel options. The terminal offers a wide range of shopping and food options to make sure that travelers have access to the amenities and services they need while they wait for their flights.