It does not cost anything to check in for a flight on the Spirit Airlines websites. Click on Check-In at the top of the page to access the feature.
Online check-in is available on the Spirit Airlines website within 24 hours before the time of the flight. It closes one hour before the flight. During check-in, guests have the option of changing seat assignments, purchasing bag storage or adding extras. These are the only features that might cost more money. To check in, enter the last name and confirmation code. Click the button and follow the instructions to access the boarding pass.