There is no certain cruising altitude for a commercial airline. it depends on where they are flying and how long they fly. most airlines fly above 10,000 ft. the max altitude is around 41,000 ft.
About Half an hour.
The cruising altitude of a normal commercial jet airplane today is around 12,000 m (35,000 ft).
35,000ft is the typical cruising altitude.
The cruising altitude of Boeing 747 is 30,000 feet.
Usually, all commercial jet aircraft cruise between 30000 and 40000 feet.
normally above 10,000 feet and below 41,000 feet above sea level
Zero, if the jet plane is on the ground, otherwise it depends at what altitude the plane happens to be flying. Cruising altitude for many passenger airliners is around five to seven miles. Military aircraft often fly at much higher altitudes.
The cruising altitude of a 747 depends on weather conditions, weight of the aircraft, and the amount of traffic on the other flight levels. Its average cruising altitude is around 33,000 feet.
A normal commercial jet can cruise at a speed of mach 0.85 or about 570 miles
The altitude ranges from 30,000 feet to 45000 feet. This is only average altitude. This range is suitable when the plane has levelled.
During IFR flight, ATC will dictate cruising altitude.
Cruising altitude is an economical height for an aircraft to fly. It is also a choice made in view of other aircraft routes.