The rest of the Grand Californian and Disneyland's other two on-site hotels will remain closed.
While the range of ticket prices remains the same for 2022, the average single-day ticket cost will increase slightly.
At full build-out, the $1 billion resort will offer 10,000 bedrooms across a variety of properties.
Travel agents said guests will learn to live without Magical Express when the service ends in 2022.
The $27 million resort will be called Kings Island Camp Cedar, located less than a mile from the park gates.
The 14-story hotel will feature 349 rooms, including 149 suites that offer conference-style seating.
The 2,050-room Dockside Inn & Suites was supposed to open in March.
The open jobs include positions for which SeaWorld had recently permanently laid off furloughed employees.
California cities want Gov. Newsom to allow theme parks in the ste to reopen, and the parks themselves are becoming more critical of the governor.