S.D. Codified Laws § 50-6A-40
Except as may be limited by the terms and conditions of any grant, loan or agreement, authorized by §§ 50-6A-27 and 50-6A-28, an authority may, by sale, lease, or otherwise, dispose of any airport, airport facility, or other property, or portion thereof or interest therein, acquired pursuant to this chapter. The disposal by sale, lease, or otherwise, shall be in accordance with the laws of this state governing the disposition of other public property, except that in the case of disposal to another authority, a subdivision, or an agency of the state or federal government for use and operation as a public airport, the sale, lease, or other disposal may be effected in such manner and upon such terms as the commissioners of the authority may deem in the best interest of civil aviation.
SDCL 50-6A-40