Yes, flying through clouds is very common. Unless you're flying through a major storm cloud, it's totally safe.
Passenger airplanes usually fly around 30,000-38,000 feet. Small aircrafts fly lower and military aircrafts can fly higher.
only 10% of air china aircrafts fly to Chicago airport
Because without an aircraft, we can't fly.
glider
They don't 'bump' into them ! Clouds are not solid - so planes simply fly through them !
Clouds aren't solid. You can just pass through them (or fly through them).
radar
airplanes aircrafts? what do you mean?
clouds fly higher in the night
They don't always fly above the clouds. They fly below, in or above them. Planes have optimum levels that they fly at. Sometimes that may be above the clouds, but not always.
For a complete list of cities that Allegiant Air, LLC's, aircrafts fly to, check out their website, allegiantair.com.
No, ships float on the sea, aircraft fly in the air. NO similarity.