Theme park tickets are one thing you should never pay full price for. The parks are well aware that the prices are hefty, especially when they appeal mainly to families. Always do some research ahead of time for discount options and avoid paying the price at the gate.
Go to the theme park website of your choice well in advance of your visit. Click on "tickets" or "special offers." All of the large theme parks have a link to deals that can cover anything from discounts for weekend tickets to special packages connected with a park hotel. These offers change constantly. Bookmark the site and check regularly for updated offers.
Check for special discount sites for the park. For example, Disney is such a large tourist attraction that several websites exist just to explain or discuss discount options. MouseSavers.com updates every break available at the American Disney parks.
If you live near the park, check for discounts at retail stores.
Check any clubs you already belong to for benefits that include theme-park deals. AAA members get discounts to major parks as part of their benefits.
Ask about multiple park deals if you plan to see more than one theme park in an area. This mainly applies to the clusters of parks in Florida and California. This option is only worthwhile if you have the time to visit each park.