I was direct navigating to domains last night and I landed on one that has the GoDaddy expired landing page on it says the domain expired on 1/14/2013. I looked in GoDaddy auctions to see if an auction was going on for it but it wasn’t there so I got curious as to how long after a domain expires at GoDaddy will it take to go to GoDaddy auctions. After a little searching the answer is 26 days after it expires it will hit the GoDaddy auction block.
There’s a list of what happens after Day 1, 5, 12, 19, etc… when a domain registered through GoDaddy expires so if you’re interested in seeing all the steps in the process you can check out
THIS PAGE on GoDaddy.