Colorado Airport System

The Colorado Airport System includes a total of 74 public-use airports, and of which 14 are categorized as commercial service airports and 60 categorized as non-commercial service general aviation airports.
2011 Colorado Aviation System Plan - Technical Report

The State Aviation System Plan provides the Division of Aeronautics with an important planning tool – a tool that helps Aeronautics determine how its investment elevates overall system performance. In addition, the State Aviation System Plan helps to identify those airports and those projects that help to provide a system of airports that can meet the State’s air transportation needs, while supporting its economic goals.

Colorado: The Official State Web Portal