Six Flags' new, three-tier pass system will be sold at higher prices and offer fewer benefits.
The $5 million suit alleges Disneyland deceived Magic Key passholders by limiting available reservations to the theme parks.
Gaining access to these VIP previews will require passholders to visit SeaWorld parks at least three times before the end of 2021.
Last time Disney World changed its AP prices, the largest increase was 7 percent. In 2021, prices are jumping up to 55 percent.
Exclusive food items and expanded early park admission are among the perks offered between Aug and Sept. 30.
Only the highest-tier $1,399 pass in the new Magic Key system comes with no blockout dates and includes parking.
Disney CEO Bob Chapek said the ability to remove COVID-19 restrictions largely depends on how quickly people get vaccinated.
Knott's will now extend passes into 2022 for each day the park remains closed.