Depending on the type of passes that you have. There's a bronze, gold, and platinum pass...I usually don't get it because we managed to go to all rides....but if you don't want to wait I do recommend it, also you can go on non peak days, like Mondays there is literally no line.
It depends. Anywhere from $100-200 per flash pass
It depends on the flash pass you get
You won't need the flash pass. My daughter and Granddaughter just got back from Six Flags, and Disneyland. The lines are not long.
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