Get Stock Quote Here Spirit Airlines, Inc. (SAVE) is an American low-cost carrier headquartered in Miramar, Florida. Spirit operates scheduled flights throughout the U.S. as well as the Caribbean, Mexico, and Latin America. Spirit operates two major operating hubs in Fort Lauderdale and Detroit. Major focus cities include: Dallas/Fort Worth, Las Vegas, Chicago, Houston, Atlantic City, and Myrtle Beach. As of 2016, Spirit remains the only airline in the United States with a 2-Star Skytrax airline rating.