What is the ATC procedure when the destination airport is under controlled airspace?

When an aircraft is approaching a destination airport that is under controlled airspace, following standard IFR (Instrument Flight Rules) procedures is essential for ensuring safety and compliance with air traffic control (ATC) regulations. These procedures include adhering to the specific route, altitude, and communication protocols that are designated for IFR operations.

Standard IFR procedures allow the ATC to maintain an orderly flow of traffic and provide appropriate separation between aircraft. This involves receiving clearances, following assigned altitudes, reporting positions as required, and adhering to the published approach procedures for the airport. Such procedures are laid out in various charts and ATC instructions, ensuring that pilots can safely navigate to their destination despite any potential weather or visibility issues that may exist.

The other options, while they may seem relevant under certain conditions, do not align with the standard operational procedures for airports under controlled airspace. For example, requesting direct routing could be applicable but would still need to comply with existing IFR guidance. Likewise, filing for VFR clearance is not appropriate in controlled airspace where an IFR flight is required. Lastly, initiating a visual approach could be an option but may not necessarily comply with IFR regulations if the pilot is still operating under IFR protocols when entering controlled airspace. Thus, adhering to standard