Spirit Airlines flight change policy involved fees for modifying reservations. Passengers were typically required to pay a change fee, and additionally, fare differences might apply when altering their booking. The specific fees and rules could vary based on the ticket type and the fare rules associated with the original reservation. Spirit Airlines had different fare classes, such as "Bare Fare" and "Fare Club," each with its own set of rules. To ensure you have the most accurate and up-to-date information, it's important to check Spirit Airlines' official website or contact their customer service for more details on Spirit Airlines Flight Change Policy.