DVC, 11 months. AIR about 11 months. Dining 6 months. FP 60 days to trip. TIW under 30 days to next/third visit.
I have a rolling calendar of booking deadlines - all targeted to a smooth vacation every 6 months.
...and I've been doing this for 12 years .
We are going in APR, 2018. Already booked for NOV 2018, with XMAS PTY tickets .
In years past I used to start planning maybe 8 months before and would start booking airfare and hotel room and stuff about 6-7 months before.
This last trip I went on last summer was super spontaneous and I booked it only 3 months before. I had to pay more for a room and didn't get all the times for ADRs I wanted though. Also, airfare was more because it was so close.
The trip I am going on this year? Believe it or not, I had already booked it before I had left for my trip last Sep! LOL It felt good to already have a $500 deposit down before I was even at DW for the current trip. So I went from 3 months before last year to a whopping 13 months for this year's trip! Was worth it though. I got all my ADRs already and will have the trip paid off a good 3 months before I even get there!
I also prefer letting my work know that I am going on a 2-week vacation at least 5-6 months before I go.
We live in Houston, so it's something we have to plan in advance due to PTO, etc.
Our first trip, we stayed 9 days so I planned a year (14 months) in advance and I'm so glad I had the time to do so. Now, we plan about 2-4 months in advance, never less than 180 days (for ADR reasons), based on how long we're going and our budget. But now I know what to do, what interests us, etc. This is just for WDW; for any other parks I would do the same (plan longer in advance for my first time or depending on budget).
I had been planning going to Disney since 2012. I had been promising my kids since that long. Last year I had it planned for September, but I became pregnant with my third child. So around 40 days out I planned a trip to Disney, infant in tow. We had a blast. We are now planning another trip next year around this time! So for me, it is 40 days, then 365+ days.