Frontier Airlines operates out of Terminal E at DFW Airport. This terminal is known for handling a number of domestic carriers and offers a smooth, efficient travel experience for budget-conscious flyers. The DFW Frontier Airlines terminal is well-signposted, so once you arrive at the airport, just follow the signs for Terminal E. https://airportsterminalhub.com/airlines/frontier-airlines/frontier-airlines-dallas-fort-worth-international-airport-dfw-terminal/