You can text SIXFLAGS to 711-711 and you’ll get an offer for a Free Medium Slurpee that will be valid until 12/31/14!
Thanks, Coupon Pro!
Such a long expiration date so you’ll have plenty of time to use it. Don’t click on redeem until you are in store as it only has a 15 minute window after activation.
NOTE: Standard text messaging fees from your cell phone provider apply.