Frontier Airlines operates from Terminal 4 at Cancun International Airport . The Frontier Airlines CUN Terminal offers check-in counters, baggage services, dining options, and duty-free shopping. With modern facilities and efficient security, passengers enjoy a smooth travel experience. Terminal 4 also provides easy access to ground transportation, ensuring convenient connections for travelers. visit at: https://www.terminalhubs.com/frontier-airlines/frontier-airlines-cun-terminal-cancun-international-airport/