Spirit AirlinesĀ ORD Terminal is located at Terminal 3 at Chicago O'Hare International Airport. The terminal offers vital amenities such as restaurants, retail shops, and passenger services. Spirit passengers can check in at designated desks, go through security screening, and go to their gates in Concourse L. Terminal 3 is well-connected to the rest of the airport and provides convenient access to transportation, such as shuttles, buses, and the Airport Transit System (ATS), which connects to other terminals and parking facilities.