Hi Gloria,
Thank you so much for visiting the Disney Parks Moms Panel with your question. We on the panel love helping guests to plan magical vacations!
I think that for every traveling party, there are different criteria that factor into the decision of when is the right time to visit Walt Disney World. It sounds like you will prioritize traveling at a less popular time of year. In that case, I think that the consideration to make is to try to travel when most children are in school. The times that children are on vacation - such as around the winter holidays, spring break, Thanksgiving, in the summer, and so on - tend to be the times of year that most families can travel to Walt Disney World. Generally speaking, heading to Walt Disney World in a month such as September or February, when most children are in school for most of the month, means less guests at Walt Disney World.
If you do end up needing to travel at a more popular time of year, do not worry! I frequently head to Walt Disney World during highly traveled times of year. By using strategies such as utilizing
Disney FastPass+ Service, which allows guests to experience some attractions each day with shortened wait times, you can experience so much at Walt Disney World at any time of year!
I hope that these thoughts are helpful for you, Gloria. Please do let us know if you have any further questions!