Frontier Denver Terminal East is home to Frontier Airlines DEN Terminal. The security checkpoints lead to Concourse A, which houses Frontier's gates, and the check-in counters are on Level 6. The terminal has places for passengers to dine, shop, and relax. Arriving early is advised for security checks and baggage drop-off, particularly during busy times. Visit Us:- https://www.terminalfind.com/frontier-airlines/frontier-airlines-den-terminal-denver-international-airport/