Emergencies can strike anyone. Many airlines around the globe have a no-show policy that allows passengers to get a refund if they are genuinely unable to fly. Spirit Airlines, an American ultra-low-cost airline, has many restrictions. Keep in mind that you won't receive a refund for any reason if your flight is delayed. If you have a legitimate reason to miss your flight (a flat tire does not count as authentic reasoning), you may contact the airline to request a refund.