How High do Planes Fly?

How high an airplane flies varies widely by what type of aircraft it is.

Commercial airliners typically cruise at altitudes between 30,000 and 40,000 feet. While smaller propeller airplanes like a Cessna 172 will typically fly at just a few thousand feet.

In this article we’ll cover how high an airplane can fly and what altitudes specific aircraft typically cruise at.

How High do Commercial Planes Fly?

Commercial passenger planes usually cruise at about 35,000 feet. That’s around 6.6 miles up in the sky.

Some planes can reach up to 43,100 feet, which is their maximum safe altitude. How high a commercial plane flies at depends on the type of aircraft, how much it weighs, what air traffic control says, and the weather.

Aircraft	Cruising Altitude (ft)	Service Ceiling (ft)
Airbus A320	33,000-37,000	39,100
Airbus A330	35,000-39,000	41,450
Airbus A350	35,000-41,000	43,100
Airbus A380	35,000-43,000	43,000
Boeing 737	35,000-37,000	41,000
Boeing 747	33,000-37,000	45,000
Boeing 777	35,000-41,000	43,100
Boeing 787	35,000-43,000	43,000
Bombardier CRJ900	31,000-39,000	41,000
Embraer E175	33,000-39,000	41,000
Cessna Citation X	41,000-47,000	51,000
Gulfstream G650	41,000-47,000	51,000
Embraer Phenom 300	41,000-45,000	45,000
Cirrus Vision Jet	25,000-28,000	28,000
HondaJet	35,000-43,000	43,000
Cessna 172	8,000-12,000	14,000

How High Can Private Jets Fly?

Private jets often fly higher than commercial planes. They can reach altitudes of 45,000 to 51,000 feet. This lets them avoid busy air traffic and bad weather below.

Private jets can fly higher than commercial planes for a few reasons:

• Quick climbs: They can zoom up to high altitudes fast.
• Better pressure systems: They keep the cabin comfortable at greater heights.
• Unique selling point: Flying higher means a smoother, more luxurious trip.

Factors Affecting Flight Altitude

Many factors impact how high a plane flies. For short trips, planes might only reach altitudes of 25,000 to 30,000 feet because it isn’t worth the fuel consumption to reach their normal cruising altitude.

On longer journeys, larger aircraft like the Boeing 747 typically cruise between 35,000 and 40,000 feet. During long overnight flights, these planes might climb even higher as they burn fuel and become lighter.

Each aircraft has a “sweet spot” where it flies most efficiently, balancing the optimal conditions for both the air and the engines.

Limits on How High Planes Can Go

Most planes can’t fly at extremely high altitudes for several reasons.

First, the building materials must be strong enough to withstand the immense pressure and cold at such heights.

Additionally, the cabin pressure systems designed to keep the air comfortable inside the plane have their operational limits. Engines and other critical systems also perform best at specific altitudes, ensuring optimal efficiency and safety.

Safety considerations are paramount; if something goes wrong at high altitudes, pilots need enough time to react and safely bring the plane down. In emergencies, planes must be able to descend quickly without exceeding safe speeds.

Moreover, planes are engineered to use fuel most efficiently at certain heights.

Lastly, aviation authorities set strict regulations, allowing planes to fly only as high as they have been tested and proven safe.

Altitude Range for Other Aircraft

While we’ve covered some of the most common commercial aircraft altitudes, here’s some details on how high other aircraft fly.

• Propeller planes: Usually below 10,000 feet, but some can reach 25,000 feet.
• Helicopters: Typically around 2,000 feet, but can go higher if needed.
• Supersonic jets (like the old Concorde): Up to 60,000 feet.

How High Can Military Aircraft Fly?

Military aircraft fly at a variety of altitudes based on the aircrafts ability as well as the purpose of the mission. Here are some of the most common military aircraft and how high they can fly.

Fighter Jets

• F-22 Raptor and F-15 Eagle: Up to 65,000 feet
• F-35 Lightning II: Around 50,000 feet

Big Bombers

• B-2 Spirit and B-52 Stratofortress: About 50,000 feet
• B-1B Lancer: Up to 60,000 feet

Spy Planes

• U-2 Dragon Lady: Around 70,000 feet
• SR-71 Blackbird (no longer used): Over 85,000 feet

Cargo Planes

• C-130 Hercules: About 30,000 feet
• C-17 Globemaster III: Up to 45,000 feet

Drones

• RQ-4 Global Hawk: Around 60,000 feet
• MQ-9 Reaper: Up to 50,000 feet

Super High Flyers

• X-15 Rocket Plane (not used anymore): Reached over 350,000 feet and still holds the speed record for a crewed airplane.