Which airline would you never fly again and why?

I once flew on Spirit Airlines, which I now call Spine Airlines, because their seats were as uncomfortable as a park bench. Never. Again. <br><br>Or the time I had a layover in Chicago with American Airlines. The flight was supposed to leave at 8pm but it kept getting delayed and they kept upping the departure time (without ever actually leaving) and eventually, at 1:30am, the flight got cancelled and they told us all to go home and try again the next day. I didn't live in Chicago. I had no where to go. They didn't offer to compensate me in any way. And to add insult to injury, when I boarded the "rescheduled" flight the next day, I discovered I was the ONLY person on the plane who was actually supposed to be on the flight the night before. The rest were people booking the flight for that morning. In other words, American Airlines knew the flight wasn't full the night before. They simply didn't want to pay to house and feed 12 strangers for the night, so they cancelled the flight and left us all stranded. <br><br>So which airline would you never fly again and why?