To cancel a Spirit flight through the Spirit Airlines website, you first need to visit the official Spirit website.
Open the browser and visit Spirit.com.
After that click on “Manage My Bookings”
Enter your ticket credentials and booking number.
On the landing page, click the “Cancel Reservation” button.
Provide your reasons for cancellation and confirm your cancellation
Moreover, in most cases, you can only issue a full refund for your flight via :