How much is it to have free refills when I bring it back on a six flags cup after it was already bought

It's $6 after u buy the 2017 red cup every visit but all day the drinks r free with the wrist band u buy

The only cups that get free refills are those that come with a meal plan. Otherwise you get free refills the day you buy the cup and when you return it's something like $5 to get free refills for the day or $1 per refill.

It is $17 if I recall correctly. It is only good for this season though.

if it was the cup already purchased for that year, it's a free refill,, hence the name free