I'm just going to use
undercovertourist prices in this post, which include tax, because they have good deals and are reputable.
Flex 5 park tickets are 337.52 and include 14 days at IOA, USO, WnW, SW, and Aquatica.
1 day park to park IOA/USO $151.64 (or 2 days $197.21, 3 days $208.39, 4 days $223.45)
Length of Stay Wet N Wild ticket (14 consecutive days) $50.06
Also available is the Unlimited Universal ticket $226.13, includes 14 consecutive days at IOA, US and WnW
Sea World 1 day $90.53, weekday $79.88, or Fun Card (good from purchase through the 12-31-15) $94.95
Aquatica 1 day $39.41, weekday $29.82
Combo Sea World Aquatica ticket $105.44 (valid for one visit to each park, expire one year after purchase)
You could buy the Ultimate Universal ticket and the Sea World Fun Card for a few dollars less ($321.08) than the Flex ticket and have unlimited admission to Sea World, Universal and Wet N Wild over the two weeks you are there. But no admission to Aquatica.