186 days.
I got the second one-way fare today. Another nice deal - $91 on United. It's an early (6 AM) flight out of town, but much better for me than a red-eye. All told, the fare was $177, including all taxes, out of Detroit. I think that's pretty good, so I'll give myself a pat on the back. Pat, pat, pat. Ah, that felt good.
I still haven't filled in the other details about what I'm going to do and/or where I'm going to stay. There's plenty of time.