Frontier Airlines operates from Terminal 5 at Chicago O’Hare International Airport (ORD). The Frontier Airlines ORD Terminal offers modern amenities, efficient check-in services, and convenient access to dining and retail options. Travelers can enjoy a streamlined experience with clearly marked gates, updated security procedures, and helpful signage throughout the terminal. Terminal 5 supports both domestic and international Frontier flights, making it a central hub for budget-conscious travelers.