Frontier Airlines ORD Terminal operates out of Terminal 5 at Chicago O’Hare International Airport (ORD). This terminal, while primarily used for international flights, supports Frontier’s domestic operations with convenient check-in counters, modern security facilities, and easy access to gates. Passengers will find a variety of amenities, including dining options, shopping, and free Wi-Fi throughout Terminal 5, enhancing the pre-flight experience. For added convenience, the terminal offers accessible transportation via the Airport Transit System (ATS), connecting all terminals and parking facilities. Travelers are advised to arrive early to allow ample time for check-in, security, and boarding.