Hi Gloria! I'm so glad to hear you are planning ahead for your 2020 visit!
Mickey's Very Merry Christmas Party is one of my favorite Walt Disney World events. The moment when Queen Elsa transforms Cinderella Castle into a glittering ice palace is absolutely breathtaking. The Once Upon a Christmastime Parade is not to be missed. My favorite part of the event is enjoying holiday treats while snow falls on Main Street, U.S.A.- holiday magic for sure!
Tickets for Mickey's Not-So-Scary Halloween Party went on sale for dates in 2019 this January. I would expect 2019 Mickey's Very Merry Christmas Party tickets to be available in the near future. Your best bet will be to keep an eye on the
Disney Parks Blog for announcements when dates for the parties are scheduled and tickets become available.
Theme Park tickets are currently available to purchase with start dates through the end of 2019. To get an idea of cost for 2019 tickets, select the number of days you wish for admission and use the interactive calendar to select dates for your visit. You'll find the ticket cost below the calendar, where you see "Select the Number of Tickets".
Walt Disney World tends to be busiest when schools are not in session, such as Spring Break, summer, and other holiday breaks. I always assume it will be very busy during my visit and plan my touring strategy accordingly. That way I am prepared if it is busy, and pleasantly surprised if it isn't as busy as I thought.
Feel free to visit us again with any additional questions. Happy planning!
Anne Marie