Hi there Nichol! Welcome to the Moms Panel! Mickey's Very Merry Christmas Party is such a fun night - I especially enjoy the parade and the fireworks! Normally, dates are announced and tickets go on sale some time in May, so you will still have a bit of a wait. By the dates that you've given me, it looks like you may be able to experience both Mickey's Not So Scary Halloween Party
and/or Mickey's Very Merry Christmas Party! In the past, they have had the Halloween party on both Oct. 31 and Nov. 1. Last year, the first Christmas party was held on Nov. 9, so it is possible that it will have started before the end of your vacation.
I suggest subscribing to the
Disney Parks Blog which will send all of the latest news and events directly to your inbox as soon as they are announced. That way you can be sure to get the tickets that you're wanting.
Thanks again for your question, Nichol, and please don't hesitate to ask me any other questions you may have while planning your Walt Disney World vacation. Have a magical day!
Kristen