Discover Spirit Airlines Baggage Policy to simplify your travels. One personal item, such as a tiny pocketbook or bag, is allowed per person. On the other hand, checked and carry-on baggage will cost more. Prices of these bags varies based on the airline and the time of payment. Make sure your bags fit the restrictions on size and weight, as Spirit Airlines has tight guidelines regarding these matters. You will be charged extra if your baggage is too large or heavy. It is a good idea to review these regulations prior to your journey to avoid unpleasant surprises at the airport. Understanding the luggage policy will help you save money and make better plans.