The airline ecosystem at Chicago O’Hare reflects the airport’s global importance and scale. ORD Airport Airlines serve millions of travelers each year, offering reliable access to international and domestic destinations. With multiple terminals dedicated to different carriers, passenger flow is managed efficiently even during peak travel times. Airlines collaborate with airport services to improve security, baggage handling, and customer support. This integrated approach enhances the overall travel experience. The airport’s airline diversity also strengthens Chicago’s role as a center for commerce, tourism, and international connectivity.