How to cancel Spirit flight? To cancel a Spirit flight, passengers should first navigate to the airline's official website and select the "Manage Travel" option. After entering their reservation details, they can choose to cancel the booking. It's important for passengers to pay close attention to any cancellation fees or restrictions that may apply. Customers can also opt to cancel their flight over the phone by calling Spirit's customer service team. They should have their confirmation number and relevant travel information at hand when making the call. In some cases, cancellation fees may be waived due to unforeseeable circumstances such as medical emergencies or documented military orders. Overall, it's essential for passengers to review Spirit's specific cancellation policies before making any changes to their flights.