I am needing to park at the Sanford Orlando airport for a week while I fly to Illinois. Where is the best place to park at the terminal?

It is around $13.00 per day for the most economic SFB parking.

They really don't have what most people call long term parking. The parking deck at the end of terminal is least expensive that I've found.

Long-term parking but I've heard it can be very expensive. Unfortunately I don't think you have a lot of options at Sanford Airport. Depending on how far away you live it might be cheaper to take a taxi or Uber.