At the DFW Frontier Airlines terminal, the check-in counters are located on the departure level of Terminal E. Frontier encourages passengers to check in online before arriving at the airport, but self-service kiosks are available near the counters for printing boarding passes and bag tags. Security screening lines can vary in wait time depending on the time of day, so arriving at ... https://airportsterminalhub.com/airlines/frontier-airlines/frontier-airlines-dallas-fort-worth-international-airport-dfw-terminal/