A whale whose age we know a little better is this one: L-25, believed to be about 85. She is also believed to be the mother of Lolita, the L-pod female who has been held captive at the Miami Seaquarium for the past 45 years and counting.
The oldest SeaWorld orca, by contrast, is the female northern resident orca Corky, who was captured as a 2-year-old calf from the A5 pod, whose whereabouts remain well known (though in fact her mother has since passed away). She is 47-years old, roughly the same age as Lolita, who was captured only a few months afterward in the horrific Penn Cove captures that were vividly shown in "Blackfish".
The next oldest are the Icelandic orca females captured on the same day in 1978, Katina and Kasatka, who are estimated to be 39 and 38-years old, respectively. The oldest male in the collection, Ulises (another Icelandic capture) is 37.
Those are, however, the outliers when it comes to longevity at SeaWorld to date. The bottom line is much more grim, especially when we look at average longevity, which can be measured several ways.