Frontier Airlines COS Terminal Frontier Airlines COS Terminal operates from the Colorado Springs Airport (COS) Terminal, offering convenient access to travelers in southern Colorado. Known for its budget-friendly fares and extensive route network, Frontier serves destinations across the U.S., emphasizing affordability and customer choice. COS Terminal provides a seamless travel experience with modern amenities and efficient services tailored to Frontier's passengers. Whether flying for business or leisure, Frontier Airlines from COS Terminal ensures a comfortable journey at competitive prices, enhancing accessibility and connectivity for regional travelers. VISIT US.. https://www.airportsterminalsinfo.com/frontier-airlines/frontier-airlines-cos-terminal-colorado-springs-airport/