I recently tore a tendon and cracked a bone in my foot

Not sure when to start walking in my air boot. It has only been 3 days.

 I would have used it right away. Have you seen a doctor? X-rays?  Pain meds?  I remember when my foot was cracked! It swelled! I went to the ER and was given a special shoe to wear and I wore it to work!  Hope your foot is better!

I have an air boot, have totally kept it on. Using crutches as well. The ER doctor said to stay off my foot for a week. Not sure if I should wait until I see the fracture clinic in 9 days before I walk on it.

I guess stay off your foot until you go to the clinic.