To what extent do property owners own the airspace above their land under todays laws?

Property owners generally have rights to the airspace above their land, but these rights are not absolute. In many jurisdictions, owners can use the airspace for activities like building structures, but they cannot interfere with air traffic or violate regulations set by authorities like the Federal Aviation Administration (FAA) in the U.S. Additionally, legal interpretations can vary, leading to complex scenariOS regarding air rights, especially in urban areas where vertical space is highly contested.