Juan writes: I have flown extensively and Spirit Airlines is by far the worst airline I have ever used ... and that includes airlines in third-world countries. Rude and indifferent personnel. A filthy airplane and a schedule of baggage fees so convoluted that you need to hire an attorney to decipher it ... all with the purpose of gouging you with additional fees when you are at the airport and not able to do anything about it. If you are visiting this site to decide whether or not to fly Spirit, please don't. You will be sorry you did.