Save yourself the nuisance of lining up to check in at the airport, and instead use the Spirit Airlines check in online. You will sign in online no later than 24 hours before departure, but no later than one hour before departure. This app helps you to save yourself precious time in advance when you sign in and print your boarding pass. The flight status tool of Spirits Airlines offers up-to-date information on the status of flights arriving and departing. Simply enter your departure and arrival positions and the date of your flight or enter your flight Spirit Airlines Phone Number for specific information relating to the flight requested. Any updates or modified details will be presented by the flight tracker then.