How fast does planes go? A Complete Guide to Airplane Speeds

So, how fast does planes go? Most commercial passenger jets cruise at about 500–600 mph (805–965 km/h, or 435–520 knots), which usually works out to around Mach 0.78–0.85. But that number only tells part of the story. A plane’s speed changes constantly during a flight, and it depends on the aircraft type, its weight, the altitude, and even the wind.

This guide breaks down exactly how fast planes go during every stage of flight, why speed is measured in different units, and how military and experimental aircraft compare to the jet you might be flying on this weekend.

Average Airplane Speed

The short answer: commercial jets cruise around 500–600 mph once they reach altitude.

This range covers most large passenger aircraft, including popular models like the Boeing 737 and Airbus A320 family. Airbus, for example, publishes a cruise speed of Mach 0.85 for its A350-900.

But “average speed” can be a confusing term. It might mean the plane’s speed through the air, its speed over the ground, or the average speed for an entire trip (including taxiing and delays). These are not the same number, and mixing them up is one of the most common mistakes people make when researching plane speeds.

Speed also changes based on aircraft weight, altitude, temperature, and wind. A heavier plane, or one flying into strong headwinds, may cruise slightly differently than the published average.

Plane Speed by Flight Phase

A plane’s speed is never one fixed number — it changes at every stage of a flight.

Here’s a simple breakdown of typical speeds by phase:

Flight Phase	Approximate Speed
Taxiing	Under 30 mph
Takeoff roll	150–180 mph
Climb	Increasing gradually
Cruise	500–600 mph
Descent	Gradually decreasing
Final approach	130–160 knots (about 150–185 mph)
Touchdown	Similar to approach speed

Cruise is normally the fastest part of routine flight. Once a plane climbs above lower-altitude speed restrictions, it settles into an efficient cruising speed that balances fuel use with travel time.

Takeoff and landing are much slower and far more variable, since pilots rely on calculated speeds rather than one fixed figure for these stages.

Commercial Jet Cruise Speed

Most commercial jets cruise at 500–600 mph, though the exact figure depends on the specific aircraft.

Airbus lists the A350-900’s cruise speed as Mach 0.85. Other popular aircraft, like the Boeing 737, Boeing 747, and Boeing 777, cruise in a similar range, though exact numbers vary by model, route, and airline procedures.

It’s worth noting that cruise speed is not the same as an aircraft’s maximum speed. Planes are built with a higher top speed available, but airlines fly them at an efficient cruise setting to save fuel and reduce wear on the aircraft.

Weather, air traffic control routing, and even the direction of travel can shift a plane’s actual speed slightly from flight to flight, even on the same route.

Airspeed and Ground Speed

Airspeed and ground speed are not the same thing, and this is one of the most important ideas to understand.

Airspeed measures how fast a plane moves through the surrounding air. Ground speed measures how fast it moves relative to the ground below. Wind is the reason these two numbers differ.

Here’s a simple example: if a plane has an airspeed of 550 mph and picks up a 50 mph tailwind, its ground speed could rise to roughly 600 mph. A headwind works the other way, slowing the plane’s ground speed even though its airspeed stays the same.

This is also why flight-tracking apps sometimes show a speed that seems to change quickly — they’re usually displaying ground speed, which shifts with the wind, not the plane’s steady airspeed.

Aircraft Speed Measurements

Pilots and engineers use several different units to describe speed, and each one serves a purpose.

Miles per hour (mph) and kilometers per hour (km/h) are common for everyday explanations.
Knots (nautical miles per hour) are the standard unit in aviation and maritime navigation.
Mach number expresses speed relative to the local speed of sound, which is useful at high altitude.
Indicated, calibrated, and true airspeed are technical measurements pilots use in the cockpit, each adjusted for different factors like altitude and instrument error.

Mach speed is a good example of why unit conversions can get tricky. Mach 1 means “the speed of sound,” but the actual mph or km/h value changes depending on temperature and altitude. That’s why Mach 0.85 doesn’t always convert to the exact same mph figure.

What Affects Airplane Speed?

Several factors combine to determine how fast a plane actually flies on any given day.

Aircraft design — shape, engines, and size all play a role.
Weight — a heavier plane needs more effort to reach the same speed.
Altitude — thinner air at higher altitudes allows for more efficient, faster cruising.
Temperature — affects air density and the local speed of sound.
Wind — changes ground speed, as explained above.
Air traffic control restrictions — rules can limit speed in certain areas.

For example, the FAA generally limits aircraft to 250 knots indicated airspeed below 10,000 feet in the United States. In June 2026, the FAA published guidance (InFO 26010) clarifying how transport-category aircraft may operate above that limit in specific circumstances, such as when the minimum safe airspeed is higher. This is a regulation with defined exceptions, not a blanket global rule.

How Fast Do Planes Take Off?

Most large commercial jets lift off the runway at roughly 150–180 mph.

This number isn’t fixed, though. Pilots calculate a series of specific “V-speeds” before every takeoff, including V1 (the decision speed), Vr (rotation speed, when the nose lifts), and V2 (the safe takeoff climb speed). These figures are recalculated for every flight based on the plane’s weight, the runway length, temperature, and wind conditions.

That’s why there’s no single “correct” takeoff speed for every flight, even on the same aircraft type.

How Fast Do Planes Land?

Landing speeds are generally slower than takeoff, typically around 130–160 knots (about 150–185 mph) on final approach.

This range can shift based on the aircraft’s weight at landing, its flap settings, and current runway conditions. Pilots adjust their approach speed to account for these variables, aiming to land safely while maintaining enough control margin.

Touchdown speed is usually close to the final approach speed, followed by braking and reverse thrust to slow the aircraft down on the runway.

Private, Military, and Supersonic Speeds

Not all aircraft fly at commercial jet speeds — some are much faster, and some are slower.

Aircraft Type	Typical Speed Notes
Private jets	Often near commercial-jet cruise speeds, varies by model
Fighter jets	Mission-dependent; some reach Mach 1.6 or higher
Supersonic aircraft	Mach 1 and above
Hypersonic research aircraft	Mach 5 and above

Lockheed Martin lists the F-35 Lightning II’s maximum speed as Mach 1.6, or about 1,200 mph — though this is a peak figure, not its normal operating speed.

Concorde, the retired supersonic airliner, cruised at Mach 2.04 (about 1,354 mph) before it was taken out of service in 2003. It remains a historical benchmark rather than a currently flying option.

Why Don’t Passenger Planes Fly Faster?

Commercial jets fly below the speed of sound mainly because supersonic flight brings major trade-offs.

Flying faster than sound creates significantly more aerodynamic drag, along with noise, structural stress, and higher fuel costs. Most airliners are designed and optimized for efficient subsonic cruise instead of maximum possible speed, since fuel efficiency directly affects ticket prices and airline profitability.

Regulatory hurdles also matter. Supersonic flight over land has historically faced restrictions due to sonic booms, which limits where such aircraft could even operate.

How Fast Was the Fastest Plane?

The fastest piloted aircraft in history was NASA’s X-15, a rocket-powered research plane.

On October 3, 1967, the X-15 reached 4,520 mph (Mach 6.7) with U.S. Air Force pilot William “Pete” Knight at the controls. This remains a major speed record for a piloted, winged aircraft — but it’s important to note the X-15 was an experimental research vehicle, not a passenger plane, so it shouldn’t be compared directly to airline travel.

Will Supersonic Passenger Travel Return?

Supersonic passenger travel hasn’t returned yet, but active research and development are underway.

NASA’s X-59 experimental aircraft reached Mach 1.4 (about 924 mph) at 55,000 feet during testing on June 12, 2026. The project studies whether a quieter “sonic thump” could make supersonic flight over land more acceptable, which could eventually support future supersonic passenger aircraft.

Separately, Boom Supersonic continues developing its Overture aircraft, targeting a Mach 1.7 cruise speed for future passenger service. As of now, Overture remains a development project — it is not yet certified or carrying passengers. Getting there still requires further prototype development, engine testing, flight testing, and FAA certification.

FAQs

How fast do commercial planes fly? Most commercial jets cruise around 500–600 mph, or roughly 435–520 knots. The exact speed depends on the aircraft model, altitude, weight, and route.

How fast does a plane take off? Large commercial jets typically lift off at about 150–180 mph, though pilots calculate specific V-speeds for each flight based on weight and conditions.

How fast does a plane land? Landing approach speeds are usually around 130–160 knots (about 150–185 mph), varying with aircraft weight and configuration.

Is ground speed the same as airspeed? No. Airspeed measures a plane’s speed through the surrounding air, while ground speed measures its speed relative to the ground. Wind causes these two numbers to differ.

What is Mach 1? Mach 1 is the local speed of sound. Its mph or km/h equivalent changes with temperature and altitude, so it isn’t a single fixed number.

How fast is a fighter jet? Some modern fighter jets, like the F-35, have a published maximum speed of Mach 1.6 (about 1,200 mph), though this is a peak speed rather than a typical cruising speed.

What is the fastest aircraft ever built? NASA’s X-15 holds the record for the fastest piloted, winged aircraft, reaching Mach 6.7 (4,520 mph) in 1967. It was a rocket-powered research aircraft, not a commercial plane.

Does wind make planes fly faster? Wind doesn’t change a plane’s airspeed, but it does affect ground speed. A tailwind increases ground speed, while a headwind decreases it.