This question already has an answer here:
I hear quite a lot airplanes and helicopters and all kind of weird flying things above my head, at least one every 2 or 3 minutes, so I started tracking them with ADS-B.
There's a commercial airport in the region (MXP), not extremely close, but it seems that my house sits on some kind of airway (? not sure about the correct word) because everything leaving and approaching that airport to/from east just passes over my head making a lot of noise and I do not notice the same thing when driving nearby.
So my question is: is there a publicly available information about these routes? Are they static? I tried to check skyvector but I can't understand those.
Is there some kind of altitude limitation flights must comply? Just for fun, I'd like to compare those with ADS-B received data.