I' not surprised that you can't find info on their site. In fact, I'm surprised it's working at all.

Please AVOID Spanair. They are horrible. They lost my luggage and had me fetch it myself at my own expense. Planes are old and dirty.. service? There is none.

Found what you are looking for: http://www.spanair.com/web/en-gb/Cus...d-at-check-in/