Six Flags Fiesta Texas Tickets now on sale! Purchase Six Flags tickets in our office for $31.00 for the day. Regular day prices are $61.99 for adults and $46.99 for children.You can also use your ticket toward the purchase of a Season Pass and save! The park opened March 2, 2013. Each ticket sold in our office will earn Glenoaks $2.50. Payment options include cash, checks, or money orders. As always, we appreciate your support!