How high can a 737 fly?

The maximum cruising altitude for the new generation of 737 planes is 41,000 feet. At this altitude, 737 jets can still have great fuel efficiency and safety standards thanks to avoiding powerful winds and bad weather. However, its optimal altitude is around 37,000 feet.



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The highest certified altitude of an airliner was Concorde's 60,000 feet. Today some of the corporate jets can fly at 51,000 feet. Q: What is the highest cruising altitude allowed? A: Most airliners are limited to 45,000 feet or less.

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Different airplanes have different maximum altitudes, depending on their construction. For example, the Airbus A320 has a maximum altitude of 39,000 feet (11,900m) and the Boeing 747 45,000 feet (13,700m).

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The maximum height that a commercial airplane is allowed to reach when they fly is 42,000 feet, as this is the universally approved maximum altitude. This max altitude for airplanes is known as the “service ceiling.” Most commercial air jets fly at such a high altitude because it is known to optimize efficiency.

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Aerodynamic altitude: If a commercial airliner flies too high, it will encounter less dense air passing over the wings to create lift. This can cause the plane to stall and fall out of control. Depending on the weather conditions and aircraft weight, this can occur anywhere between 40,000 and 45,000 feet.

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A higher elevation will require a longer climb, meaning the aircraft will burn more fuel in order to reach its cruising altitude. Additionally, 35,000 feet gives more time for airline crew to address any unexpected mid-flight incidents.

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The Airbus A380, for example, is 43,100 feet and the A350 and Boeing 787 are the same (although the larger 787-10 and A350-1000 are lower at 41,100 feet and 41,450 feet). The A380 has a ceiling of 43,100 feet. Photo: Curimedia Photography via Wikimedia Commons.

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This is especially true for the critical aircraft – the Boeing 737-900 which requires a landing length of 6,800 feet under wet conditions and a takeoff length of 9,700 feet under maximum takeoff weight.

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The longest over water route in the world is the stretch between the U.S. mainland and Hawaii. Even between Hawaii and Tokyo there are alternate airports available, such as Midway Island (hence the name “Midway”). Going across the North Atlantic, alternates include Iceland and Greenland.

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Because of its vast size, crossing the Pacific Ocean requires a staggering quantity of fuel. However, most commercial aircraft do not fly directly over the Pacific Ocean; instead, they choose what are known as 'curved paths'. These paths offers a faster, more efficient route given the curved nature of the earth.

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Curved routes are preferred by aircraft because they are less likely to encounter obstacles and use less fuel than straight ones. Since a curved path covers more ground than a straight one, it provides additional options for emergency landings.

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All airplanes will be exposed to drag during flight. They must overcome this aerodynamic force to achieve and maintain lift. Otherwise, airplanes would essentially fall out of the sky. Air brakes are control surfaces that increase drag so that airplanes slow down during flight.

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The term hard landing usually implies that the pilot still has total or partial control over the aircraft, as opposed to an uncontrolled descent into terrain (a crash). Hard landings can vary in their consequences, from mild passenger discomfort to vehicle damage, structural failure, injuries, and/or loss of life.

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And that at cabin altitudes above 14,000 feet pilots must use oxygen at all times. And that above 15,000 feet each occupant of the aircraft must be provided supplemental oxygen. All of this is spelled out in Federal Aviation Regulations Part 91.211.

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know how high a Boeing 777 can fly? cruising altitude is usually around 35,000-39,000 feet.

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