You can buy special day passes for the holiday it's usually like $42 and upgrade on that day for season pass
$70.99 per adult but depends on when you go cuz some times if you bring special soda cans you can get so much off or coupons at dunkin donuts for discounts if you want season passes are 62.99 for standered an more as you want to upgrade heres the website https://www.sixflags.com/newengland/store/season-passes
Not sure we have season passes, you can look on there website
Thanks! Your answer is awaiting moderation.