Originally Posted by
flyerby
Limited or guaranteed is about availability.
With limited award you’ll need an X class (for economy) or a I class (for business) availability. If there is you’ll be able to have a confirmed ticket. With seat guaranteed award, as long as there’s a single seat in the cabin you’ll be able to make a confirmed reservation.
Not the case on my recent flight out to Geneva out of IST. There were available seats both in Y and C but guaranteed awards were not available. When the flight is almost fully booked they only allow paid tickets to be purchased.