McDonald’s first used a drive-through window at a restaurant in 1975.
The location was in Sierra Vista, Arizona, near Fort Huachuca. The restaurant added the service partly to accommodate soldiers who could not leave their vehicles while wearing military uniforms. This practical local need helped produce a feature that later became a defining part of McDonald’s identity.
Drive-through service fit McDonald’s existing emphasis on speed, standardization, and convenience. Once the format proved useful, it spread through the company’s restaurant network and became a major way customers received food. The drive-through also influenced later restaurant design, signage, ordering systems, and brand expectations.
The 1975 date refers to McDonald’s first drive-through, not the first drive-through restaurant in the entire fast-food industry. Nor does it refer to the company’s original walk-up service model. The innovation connected McDonald’s established speed-oriented operating system with the growing importance of automobile travel.