Spirit Airlines does not offer free cancellations in most cases. Typically, if you need to cancel a flight, you will be subject to cancellation fees, which can vary depending on factors such as how far in advance you cancel and the type of fare you purchased. However, Spirit Airlines does have a 24-hour risk-free cancellation policy, where you can cancel your booking for free within 24 hours of purchase as long as the flight is at least 7 days away.