Here's why:
* Distance: The Moon is an average of 238,855 miles (384,400 kilometers) from Earth. Even the largest structures on Earth are far too small to be visible from that distance.
* Resolution: The human eye and even powerful telescopes would have to be able to resolve objects smaller than a few meters across at that distance to see anything.
* Atmosphere: The Earth's atmosphere would obscure any view of the airport.
While King Khalid International Airport is a large and modern airport, it's simply too small to be visible from such a great distance.