Most commercial airliners cruise at 550 to 600 mph (885 to 965 km/h), which works out to roughly Mach 0.78 to 0.86 — 78% to 86% of the speed of sound. Private jets fly in a similar range, sometimes a bit faster. Military jets can exceed 1,500 mph, and the fastest aircraft ever built have topped 2,000 mph.
That’s the number most people are looking for. The rest of this comes down to why that number is what it is, and how it changes depending on what kind of plane you’re talking about.
How Fast Do Commercial Planes Go?
Commercial jets don’t fly at one fixed speed — it varies by aircraft model, altitude, and wind — but nearly every modern airliner cruises somewhere between Mach 0.74 and Mach 0.86. In plain numbers, that’s about 480 to 575 knots, or roughly 550 to 660 mph at cruising altitude.
Cruising Speed by Aircraft Model
| Aircraft | Cruise Mach | mph | km/h |
|---|---|---|---|
| Boeing 787 Dreamliner | 0.85 | 652 | 1,049 |
| Boeing 747 | 0.85 | 580 | 933 |
| Airbus A380 | 0.85 | 561 | 903 |
| Boeing 777 | 0.84 | 562 | 905 |
| Airbus A340 | 0.82 | 541 | 871 |
| Boeing 767 | 0.80 | 529 | 851 |
| Boeing 737 | 0.79 | 523 | 842 |
| Airbus A320 | 0.78 | 515 | 828 |
| Embraer E190 | 0.78 | 515 | 828 |
| ATR 72 (turboprop) | 0.41 | 317 | 510 |
Notice the Boeing 787 sits at the top despite flying a similar Mach number to the 747 and A380 — it cruises at a higher altitude, where the actual ground speed for the same Mach number works out faster.
Takeoff and Landing Speeds
Cruising speed isn’t the whole story. A typical airliner lifts off the runway around 150 to 180 mph, depending on its weight and the model, and touches down at landing around 130 to 160 mph. Both numbers depend heavily on the aircraft’s weight at that moment — a fully loaded jet needs more speed to generate enough lift than the same jet flying nearly empty.
Why Commercial Planes Don’t Fly Faster
This is the part most articles skip, and it’s the most interesting piece of the puzzle: modern airliners aren’t slower than they could be — they’re cruising at the speed that makes the most economic sense.
As a plane approaches the speed of sound, drag increases sharply in what’s called the transonic region. Pushing past roughly Mach 0.85 costs a disproportionate amount of extra fuel for a relatively small gain in travel time. Airlines calculated decades ago that this tradeoff doesn’t pay off for scheduled passenger service, and modern high-bypass turbofan engines are tuned to run most efficiently in that same 0.78-0.86 Mach band.
That’s also why today’s jets aren’t meaningfully faster than jets from the 1960s. A 707 or early 747 cruised at roughly the same speed as a modern 787. The engines are dramatically more fuel-efficient and quieter, but the cruising speed target barely moved, because the physics and the economics haven’t changed.
Common misconception: people often assume aviation technology has made planes progressively faster over the decades, the way cars or computers have improved. Speed is actually one of the few metrics that’s plateaued — efficiency, range, and noise reduction are where the real gains happened.
How Fast Do Private Jets Go?
Private jets cover a wider range because the category spans everything from light jets to ultra-long-range aircraft. Most cruise between 500 and 600 mph, similar to commercial airliners, but larger, purpose-built long-range jets can push higher:
- Mid-size private jets: roughly 500-530 mph
- Large-cabin jets (e.g., Gulfstream G650): up to around 610 mph, or Mach 0.925 at its maximum operating speed
- Light jets and turboprops: often 300-450 mph
The advantage of a private jet usually isn’t top speed anyway — it’s the ability to fly more direct routes, use smaller airports, and skip layovers, which often saves more total travel time than a faster cruise speed would.
How Fast Do Military Planes Go?
Military aircraft operate in a completely different category because they aren’t optimized for fuel efficiency or passenger comfort. Modern fighter jets like the F-22 Raptor or F-15 Eagle can exceed Mach 2 (roughly 1,500 mph) in short bursts, and some interceptors are built specifically to sprint past Mach 2 for brief periods. Sustained supersonic flight burns fuel far too fast for long-range use, so even military aircraft spend most of their flight time at subsonic speeds and only push to top speed when the mission calls for it.
How Fast Do Small Propeller Planes Go?
Small general-aviation aircraft — the kind used for flight training or short regional hops — fly much slower than jets, typically 100 to 200 mph. A Cessna 172, one of the most common training aircraft in the world, cruises around 120-140 mph. Turboprops like the ATR 72 sit in between, cruising around 300-320 mph, fast enough for regional routes but well below jet speeds.
The Fastest Planes Ever Built
For raw speed records, nothing built for regular service comes close to a handful of experimental and military aircraft:
- SR-71 Blackbird: a reconnaissance aircraft that officially reached over 2,190 mph (Mach 3.3), and unofficial accounts suggest it flew even faster.
- X-15: a rocket-powered research aircraft that reached roughly 4,520 mph (Mach 6.7) — still the fastest crewed, powered aircraft ever flown.
- Concorde: the only supersonic aircraft to carry paying passengers commercially, cruising at about 1,350 mph (Mach 2.04) before it was retired in 2003.
No aircraft carrying commercial passengers today comes close to Concorde’s speed — every option since has prioritized efficiency and cost over raw velocity.
Putting These Speeds in Perspective
Numbers like “560 mph” don’t mean much until you compare them to something familiar:
- A commercial jet at cruising speed travels roughly 8-9 times faster than a car on the highway.
- The speed of sound at sea level is about 767 mph — commercial jets cruise at 70-85% of that.
- The SR-71 covered roughly 36 miles every minute at top speed — fast enough to fly from New York to Los Angeles in well under an hour.
FAQs
How fast do planes go in km/h?
Most commercial jets cruise between about 885 and 1,050 km/h, depending on the aircraft model and altitude.
Do planes go faster over the ocean?
Not because they’re over water — but jet stream winds, which are common on transoceanic routes, can add or subtract 100+ mph from ground speed depending on wind direction. Indicated airspeed stays roughly the same either way.
Why don’t commercial planes fly faster than the speed of sound?
Because the fuel cost jumps sharply near and past Mach 1, and commercial airliners aren’t built with the reinforced structure needed to handle sustained supersonic flight. It’s an economic and engineering tradeoff, not a hard physical limit.
What’s the fastest a passenger plane has ever flown?
Concorde holds that record among aircraft that carried paying passengers, cruising at roughly Mach 2.04, or about 1,350 mph.
How fast does a plane go during takeoff?
Typically around 150-180 mph at the moment of liftoff, though the exact number depends on the aircraft’s weight and model.