Frontier Airlines operates from Terminal 5 at Chicago O'Hare International Airport (ORD), making it easy and convenient for people to travel. Frontier Airlines ORD Terminal Effective check-in counters and kiosks are available in addition to ready to assist helpful airport employees on flight-related matters. Dropping of bags is simple; boarding passes may be printed or changes made to reservations if required. Terminal 5 was fully geared up with diversified dining options, shops, and cozy waiting areas to make your journey better. Frontier Airlines has dedicated customer service to help those having concerns, which can guide you through the entire process. Whether you are flying out or coming in, the airline takes care of the complete hassle-free experience at ORD, letting you enjoy your trip.