Spirit airlines change flight means making changes to an itinerary that has already been reserved. Changes in travel plans, personal emergencies, or unforeseen events are just a few of the reasons why a passenger might need to change their trip.Through their website or by calling their customer service number, Spirit Airlines' website allows travellers to make modifications to their flight reservations. This procedure entails altering the original schedule to choose a new departure date, destination, or other potential changes in travel information.