We have our girls in a toddler program at a montessori - 2 half mornings a week. The montessori is part of a larger private school (goes all the way up through 12), but the montessori is only up to age 6, then grades 1-4 are a partial montessori program and then after that it transitions to a traditional school.
We're looking at various programs for next year (we didn't have a ton of options for a toddler program - so we want to expand our search). The montessori programs, I've looked at for 5 half days have a wide range of cost ($4k to $9k a year). Full time programs have an even wider range ($5k to $15k a year). Also, my city has montessori magnet schools, which are of course, free.
I live in Cincinnati, OH - which is a relatively LCOL area.
the montessori here, for 2.9 to 3. is 3500 for the school year. which is only sept-mid june. the class is 8:30-11:15 Tues, Wed, Thur.
Then the 4 yr old program is 5 days a week, same time frame for 4500.
They are closed all major holidays and no summer school/care.