Ask the Captain: Highest altitudes for planes (2024)

John Cox| Special for USA TODAY

Question: What is the highest altitude an airplane can fly?

—Churachandpur Manipur

Answer:The highest commercial airliner altitude was 60,000 feet by Concorde.

The highest military air-breathing engine airplane was the SR-71 — about90,000 feet.

The highest airliner flying today reaches45,000 feet.

The highest business jet flying today reaches51,000 feet.

Q: At what altitude would the wings of an aircraft lose effectiveness?

— Kevin T.

A:It depends on the wing and how much air can be kept flowing over it. The SR-71 routinely flew over 80,000 feet, but it was a very special wing. The space shuttle began encountering “usable” air around 100,000 feet during descent; it, too, was a very special wing and vehicle.

Q: If a plane went past 100,000 feet, what would happen to it?

— Bob, Georgia State

A: No commercial or business airplane flying today can exceed 100,000 feet. Special rocket-powered airplanes can fly over 100,000 feet to gather data, but they are specially designed for it.

Q: Much beyond the certified ceiling, can an aircraft maintain altitude?

— Stealth, Canada

A: During certification testing, airplanes are flown above the certified ceiling, but the performance is limited. The answer is that aircraft may be able to maintain altitude above service ceiling, depending on the weight and temperature, but not very much above it.

Q: What is the highest possible elevation a commercial jetliner can fly? Are there any routes in the world that require a jetliner to fly at its highest elevation?

— CTY, Emeryville, Calif.

A:The highest commercial airliner ceilings are 45,000 feet. It is not uncommon to fly at the certified ceiling of the airplane.

Q: At cruising altitude for a 767, what is the cabin pressure vs. altitude?

— Cary, Honolulu

A:The cabin pressure is maintained at 8,000 feet when the 767 operatesat its service ceiling of 43,000 feet.

Q: Great to see the 757 questions in your recent column, it’s my favorite commercial airplane. What makes it cost-prohibitive for Boeing to restart production? Also, what’s the service ceiling, and is it limited by onboard oxygen capacity?

— Buzz, Delray Beach, Fla.

A:The fuel burn of the 757 is the largest consideration. Modern jetliners are more fuel-efficient. The performance of the 757 was unmatched, but the fuel consumption was higher.

The service ceiling of the 757 is 42,000 feet; it is limited by the pressurization and the ability to descend to a low altitude should it be necessary.

Q: Is there a maximum operating height for helicopters?

— Pete, Washington

A:Yes, and it depends on the helicopter. Every manufacturer provides a service ceiling for each model.

John Cox is a retired airline captain with US Airways and runs his own aviation safety consulting company, Safety Operating Systems.

Ask the Captain: Highest altitudes for planes (2024)

FAQs

Ask the Captain: Highest altitudes for planes? ›

Answer: The highest commercial airliner altitude was 60,000 feet by Concorde. The highest military air-breathing engine airplane was the SR-71 — about 90,000 feet.

What's the highest altitude a plane can go? ›

"Most commercial airliners have what we call a 'service ceiling' of up to 45,000 feet," says former pilot Dan Bubb, now a professor at the University of Nevada, Las Vegas. "The service ceiling is the point where the airplane can no longer develop lift, and gravity begins pulling it down to the ground."

What is the highest altitude recorded for a plane? ›

On July 17, 1962, American test pilot Robert White took the X-15 to an altitude of 314,688 feet. But it's Russian pilot Alexandr Fedotov who holds the world altitude record, set on August 31, 1977, when his MiG E-266M reached a mere 123,523 feet.

What is the highest altitude for military aircraft? ›

U.S. military aircraft can go above 50,000 feet, while the U2 & MiG-31 have the highest service ceilings. The X-15 reached 354,200 feet, the MiG E-266M hit 123,523 feet, and the SR-71 Blackbird reached 85,135 feet in record-breaking flights.

What is the highest altitude an airplane can reach without getting damaged? ›

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.

Can planes fly at 70,000 feet? ›

Reconnaissance and Surveillance Aircraft

U-2 Dragon Lady: Service ceiling of approximately 70,000 feet.

Can planes fly at 50,000 feet? ›

The highest altitude a commercial jetliner can reach is approximately 45,000 feet, while corporate aircraft can fly slightly above 50,000 feet, but only if they are specifically designed for that purpose. Achieving an altitude of 60,000 feet would necessitate super-efficient engines and glider-like wings.

What is the maximum safe flight altitude? ›

Generally, commercial jets fly at cruising altitudes between 30,000 and 40,000 feet (9,000 to 12,000 meters), but some can fly higher, up to around 45,000 or even 50,000 feet (13,700 to 15,200 meters).

Which airline has the highest altitude? ›

Question: What is the highest altitude an airplane can fly? Answer: The highest commercial airliner altitude was 60,000 feet by Concorde. The highest military air-breathing engine airplane was the SR-71 — about 90,000 feet. The highest airliner flying today reaches 45,000 feet.

Can you fly at 100,000 feet? ›

A few airplanes have exceeded this altitude, but were only able to do so momentarily… they were unable to sustain level flight at that high altitude. The current altitude record, I believe, for sustained level flight by an airplane is about 97,000 feet — a record set by the Helios “flying wing” airplane.

What is the highest altitude a private pilot can fly? ›

Depending on congestion and restrictions, different altitudes may be assigned for ascent, cruising, and descent. Private jets can fly at altitudes ranging from 18,000 feet to 45,000 feet, depending on the specific type of jet and prevailing traffic conditions.

What is the highest altitude a private jet can fly? ›

A private jet can fly at a height of up to 45 000 ft, though most cruise at 41 000 ft. This is generally higher than an airline flight and allows for a more direct route – out of the most congested area of the sky. A private jet pilot will choose the optimum cruising altitude depending on the distance of the journey.

Which plane can fly the longest? ›

Airliners. The longest range jetliner in service is the Airbus A350 XWB Ultra Long Range, capable of flying up to 18,000 kilometres (9,700 nmi; 11,000 mi). The Airbus A380 is capable of flying 14,800 kilometres (8,000 nmi; 9,200 mi) with 544 passengers.

Can a plane fly at 120000 feet? ›

No, there isn't enough oxygen at that height to power the engines. The SR-71 Blackbird flew spy missions over the Soviet Union during the Cold War. It still holds the record for highest altitude for an operated aircraft, and it flew at 85,000 feet.

At what altitude is there no turbulence? ›

There is NO ALTITUDE that is absolutely free from Turbulence! so you cant out fly it! As a general rule anything above 30,000 feet, assures you of a smoother ride than lower. But again no altitude assures you a smooth ride.

What is the highest a commercial plane can fly? ›

FAQ » General FAQs » How high do commercial planes fly? The approved maximum altitude for most commercial aircraft is 42,000 feet.

Can a plane fly 100k feet? ›

The highest current world absolute general aviation altitude record [56] propelled aircraft is 37,650 metres (123,520 ft) set by Aleksandr Vasilyevich Fedotov, in a Mikoyan Gurevitch E-266M (MiG-25M), on August 31, 1977. The X-15 flew into space and back. 100,000 ft, pffft. No problem.

Can a plane fly at 43,000 feet? ›

Commercial planes fly between 35,000 and 43,000 feet. This is usually the most optimal flight to create lift. Aircraft are generally around 7 miles above the ground traveling at nearly the speed of sound. The higher a plane flies, the thinner air surrounding it becomes.

Can a plane fly over Mount Everest? ›

Tim Morgan, a commercial pilot writing for Quora says aircraft can fly above 40,000 feet, and hence it is possible to fly over Mount Everest which stands at 29,031.69 feet. However, typical flight routes do not travel above Mount Everest as the mountains create unforgiving weather.

How high can air force one fly? ›

45,100 feet

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