Making Six Flags more affordable

I haven’t been to an amusement park in a long time, and I have been thinking it would be fun to go again. Our daughter is finally old enough to enjoy it, so we are thinking of making a family outing to the Six Flags that is a couple hours away from us. However, it is going to be a bit expensive unless I can find some Six Flags discounts so that we can get cheaper admissions. Does anyone know where I might be able to find these? I am assuming there must be some available on the internet somewhere.