Spirit is one of the ultra-cheap airlines that will take you somewhere for a really low price, as long as you don't make any changes, don't take any luggage, and don't expect legroom or amenities. Comedian Brent Pella told about his experience with Spirit Airlines in a show and the audio was later animated to make this video.
This was posted to reddit, where Europeans said it couldn't be as bad as Ryanair. Ryanair is world famous for their bare bones flight service and the crew's surprise at every successful landing.