The Spirit Airlines ORD Terminal operates out of Terminal 3 at Chicago O'Hare International Airport (ORD). Known for its budget-friendly, no-frills service, Spirit provides domestic and international flights from this terminal. Terminal 3 offers various amenities, including dining and shopping options, for passengers waiting for their flights. While Spirit's low-cost model often involves additional fees for extras like seat selection and carry-on luggage, passengers can enjoy a streamlined check-in process and convenient gate locations within the terminal. It's a popular choice for travelers looking for affordable airfare out of O'Hare.