Frontier Airlines DEN Terminal provides effective baggage services, such as baggage drop, claim help, and self-service kiosks in Concourse A. Carry-on and checked baggage options are available to passengers. Travelers are guaranteed a comfortable flying experience with adjustable seating and alternatives for additional legroom available for a charge. https://www.terminalfind.com/frontier-airlines/frontier-airlines-den-terminal-denver-international-airport/