What is the second most common aeronautical charge at a commercial service airport?

The second most common aeronautical charge at a commercial service airport is fuel flowage fees. These fees are charged to fuel suppliers based on the amount of fuel that passes through the airport, serving both general aviation and commercial operations. Fuel flowage fees are important for airports as they generate revenue that can help fund airport maintenance and improvements.

Landing fees, which are more commonly recognized as one of the primary sources of income for many airports, are typically the most prevalent aeronautical charge. They are assessed on aircraft that land on the airport's runways, contributing significantly to the overall aeronautical revenue.

While passenger facility charges are crucial for funding fee projects like terminal improvements, they are typically associated with the passengers using the facilities rather than direct operations. Terminal rental rates apply to airlines or vendors using terminal space and are significant, but they usually fall into different operational categories compared to aeronautical charges like fuel flowage fees and landing fees.

Understanding the nuances of these various charges can provide insight into how airports manage their finances and prioritize their funding sources.