The state plans to cut costs by selling five of its 20 aircraft.
The move follows the recommendations of an internal task force reviewing air service use by various state departments.
The sale of the five planes is expected to bring in about $1 million.
That change and others should save the state about $116,000 in operating costs through the next fiscal year, which begins October 1.
The sale must be approved by the Michigan Aeronautics Commission.
Governor Granholm announced the changes Tuesday in Lansing.