Do yourself a favor and pay the $50 more for a different airline. This airline is cheap because you have to pay for everything in addition to the ticket- seats, carry on bags ($5 more than a checked bag), water, etc. I wouldn't be surprised if they charged to use the lav on the plane. While waiting for a flight from Chicago to Phoenix, I noticed that all of their flights to other destinations were delayed, as was the flight to Phoenix. You can do better than this.