Drone delivery is no longer an experimental mobility concept; it is a structural re-architecture of last-mile logistics. Autonomous aerial delivery replaces labor-bound, congestion-dependent road networks with electrified, software-defined airspace systems engineered for speed, reliability, and cost compression. As e-commerce volumes surge and urban density intensifies, drone last-mile logistics emerges as the only scalable solution capable of reducing delivery times, stabilizing unit economics, meeting emissions targets, and operating independently of surface infrastructure. This shift is driven by converging advances in autonomous flight systems, low-altitude airspace regulation, droneport infrastructure, and AI-managed logistics networks—transforming drone delivery from a niche capability into a foundational layer of global supply chains.