What’s The Slowest Speed A Commercial Aircraft Can Safely Fly At?

The slowest speed an aircraft can fly is its stall speed. Calculating stall speed depends on a wide range of factors, including altitude, its loaded weight, the direction of the wind, and more. Flying at just above stall speed is not the same as the speed at which an aircraft can be easily controlled. Aircraft can be easily destabilized at such low speeds, so they typically fly at substantially higher speeds (typically around 155 miles per hour). There is also a difference between airspeed and groundspeed (there’s a reason why airplanes take off and land into the wind).