How far does Class C airspace typically extend from the airport?

Class C airspace typically extends from the surface up to 4,000 feet above the airport elevation, forming a core area with a radius of 5 nautical miles from the airport. Additionally, there is an outer area that usually spans from 5 to 10 nautical miles, where aircraft are still required to establish communications with air traffic control. This structure is designed to manage air traffic effectively while accommodating both the airport's operations and the surrounding airspace.

In summary, the configuration of Class C airspace helps ensure safe and orderly traffic flow around busy airports, enhancing situational awareness for pilots operating in and around this airspace.