The Irish Aviation Authority IAA is a commercial State-sponsored body. The vast majority of revenue is generated from charging aircraft that use Irish- controlled airspace.
The IAA receives no Government funding. Approximately 75% of all IAA revenue comes from en route airspace traffic (over flying Ireland) or from the use of HF Communication services. The IAA has one of the lowest en route user charge unit rates in Europe making Irish airspace economically attractive to airspace users.