My family and I will be visiting six flags in the time frame of October 8-12 2018, does anyone know what the price for 1 day admission is for adult and child age 9?

It is true, every year around labor day they put their season passes on sale which includes parking. They will be good immediately and through the end of the next year. That will be the best deal. Also, if you're traveling anywhere else where there is a six flags, the passes will also bee good there too

I think in September they have a Flash sale....season passes for about $75, real good deal and perks..

Well usually tickets average $85 but I'm sure that there will be times where they give discounts, especially if you bundle. For example I got a season pass for thay price during Cyber Monday. Just keep trying on their website to see if deals are on. Hope you have a wonderful time with you family there Jennifer.