The speed of a Boeing aircraft can vary widely depending on the specific model, phase of flight, and other factors such as weather conditions and altitude. Different Boeing aircraft are designed for various purposes, from short-haul regional flights to long-haul intercontinental journeys.
To give you a general idea, here are the approximate cruising speeds of some popular Boeing models:
Boeing 737: Cruising speed is around 530 miles per hour (Mach 0.78).
Boeing 747: Cruising speed is around 570 miles per hour (Mach 0.85).
Boeing 777: Cruising speed is around 560 to 590 miles per hour (Mach 0.84 to 0.89).
Boeing 787 Dreamliner: Cruising speed is around 560 to 590 miles per hour (Mach 0.85 to 0.90).
These speeds are typical during the cruising phase of the flight, which is when the aircraft has reached its desired altitude and maintains a stable velocity. Takeoff and landing speeds are different and tend to be slower.
Keep in mind that these figures are approximate and may vary depending on the specific model and configuration of the aircraft. The cruising speed may also be affected by factors such as headwinds or tailwinds encountered during the flight.