The airplane accelerates to rotation speed, but it's still on the ground. Obviously, some airplanes will lift off more quickly than others. Generally speaking, though, the takeoff roll lasts about 15 seconds for single-engine general aviation airplanes.

The duration of an airplane's takeoff can be divided into the takeoff roll (ground speed) and the initial climb. For a typical commercial jet like a Boeing 737 or Airbus A320, the takeoff roll usually lasts between 30 and 45 seconds. During this time, the aircraft accelerates from a standstill to its rotation speed (Vr​), which is typically around 150-170 mph. The exact time is influenced by the aircraft's weight, the temperature (hot air is less dense and requires a longer roll), and the runway elevation. Heavier planes, such as the Boeing 777 or 747, may require 50 to 60 seconds on the ground to reach flying speed. Once the nose lifts, the "takeoff phase" technically continues until the aircraft reaches its initial cruising altitude or clears a specific height (like 1,500 feet), which takes about 2 to 4 minutes. Passengers usually feel the "heavy gravity" sensation during the first 60 seconds as the engines operate at nearly 100% thrust to overcome inertia and drag.