Avoid Spirit Airlines Save Now Here’s Why Spirit Airlines is well-known for its inexpensive flights, yet these reductions sometimes include unstated expenses. Basic amenities like carry-on luggage, seat preference, and even printing boarding tickets at the airport sometimes come with extra costs for travelers. Tight baggage restrictions and close-fitting seats can make for a very uncomfortable journey. Travelers also frequently complain about cancellations and delays. If you want a more enjoyable flight, think about paying a little more up front with another airline to avoid all of Spirit Airlines' many annoyances and additional fees.