Air Force One, the official aircraft carrying the U.S. President, can reach speeds of about Mach 0.92, which is approximately 630 mph (miles per hour). The current model, a Boeing VC-25A (a variant of the Boeing 747-200), has a maximum speed around 630 mph and can fly at altitudes up to 45,000 feet. A future replacement based on the Boeing 747-8 is expected to have a top speed of about 660 mph. Despite these speeds, modern commercial planes and military jets can fly faster, but Air Force One prioritizes safety, security, and advanced defense features over maximum speed.