Spirit Airlines' web check-in is the most convenient option. Spirit also offers kiosk check-in, mobile check-in, and airport check-in to help customers check in and get their boarding passes. Check-in counters and self-service kiosks at airports, however, require a fee. You can check in online for your Spirit flight by following these steps. visit us our blog: https://spritfly.com/blog/spirit-airlines-web-check-in