As has been been discussed..by the time they nickel and dime you..if you are saving only 50-100$ and flying an airline with horrible flight times and customer service..it isn't worth the agony of losing a day or two of vacation because they can't get you there promptly..Spirit flies out of Minneapolis to MBJ..you leave at 12:30 in morning..fly to Fort Lauderdale..get there at 4 am..sit there until about noon..then fly to MBJ..no thanks..