What is the minimum flight visibility required for VFR flights above 10000 ft MSL and more than 1200 ft AGL in controlled airspace?

For VFR (Visual Flight Rules) flights conducted above 10,000 feet MSL (Mean Sea Level) and more than 1,200 feet AGL (Above Ground Level) in controlled airspace, the minimum flight visibility requirement is indeed 5 miles. This regulation ensures that pilots maintain a sufficient visual reference to the ground and other aircraft, enhancing safety while flying in controlled airspace.

In controlled airspace, the regulations are designed to provide a structured environment, which is crucial at these altitudes where a greater risk of encountering other aircraft exists. This visibility requirement allows pilots not only to see and avoid other traffic but also to navigate effectively, thus mitigating risks associated with reduced visibility situations.

Higher visibility standards, such as those listed in other options, would be applicable in different contexts or flight conditions, but for VFR operations specifically outlined in the question, the requirement is clear at 5 miles to maintain safety and effective separation from other aircraft.