o’hare spirit airlines terminal flies from Terminal 1 at Chicago’s O’Hare International Airport, located at 10000 W Balmoral Ave, Chicago, IL 60666, United States. Their airport code is ORD. You can find more details on their official website. Spirit Airlines operates all day, every day, to help passengers. Their IATA code is NK, and they started in 1983. Their main office is in Miramar, Florida, United States.