The Lockheed SR-71 Blackbird is a long-range, Mach 3+ strategic reconnaissance aircraft. It was designed and built by the Lockheed Corporation. The aircraft's sleek and futuristic design, coupled with its unmatched performance capabilities, make it widely considered one of the most beautiful aircraft ever built.

While "beauty" in aviation is highly subjective, the Aérospatiale/BAC Concorde is frequently cited by enthusiasts and designers as the most beautiful aircraft ever built. Its sleek, "droop-nose" design and elegant delta wings were a triumph of supersonic aerodynamics, giving it a bird-like silhouette that remains iconic decades after its retirement. Another strong contender often mentioned is the Lockheed Constellation, known for its triple-tail design and dolphin-shaped fuselage, which many consider the pinnacle of the "propeller era." In the modern jet age, the Boeing 787 Dreamliner is praised for its graceful, raked wingtips and large windows, while the Airbus A350 is noted for its distinctive "carbon fiber" wing curve and "raccoon mask" cockpit windows. For many, however, the Supermarine Spitfire remains the ultimate symbol of aesthetic perfection in flight, with its thin, elliptical wings and balanced proportions representing a masterclass in both form and function.