S pirit Airlines has a reputation for many things: affordable airfare, an excellent safety record and a no-frills approach to your in-flight experience. Spirit was even ranked the best airline in ...

Spirit Airlines is asking the U.S. Department of Transportation to block a proposed partnership between JetBlue and United Airlines, calling it "anticompetitive." The big picture: Spirit argues ...

Spirit and Frontier representatives did not respond to requests for comment. While those famously penny-pinching airlines may not be going away, they are getting more similar to network carriers ...