There aren't even cameras recording what's happening inside most airplanes.

Even if there was, what resolution do you want to be capturing? The 6' long at 900' is 0.38°. If you've got a normal lens, that's about 45°. That's about 1/120th of the field of view - about 25px on a 3000px width frame. Switch that to a wider lens (75° or a 180° for the "capture all the windows in one panoramic image") or go to a more common resolution for streaming video and its even smaller.

Even if the camera was there, the image wouldn't be that interesting. You could capture the view of the runway approach... but other than that, there wouldn't ever be anything of interest on the camera. Anything weird would be tiny on the camera.

It is deceptive - we've got good eyes. I remember my grandmother identifying my grandfather at the other end of a very large parking lot by his particular shuffle. Our eyes can resolve two objects that are 30 cm apart at 1km away. Cameras are no where near this good when it comes to details (and those that are aren't taking pictures with something that has its imaging area measured in millimeters). We see at about 500 megapixels.