Air travel is on track to reach nearly 10 billion passengers by 2025, marking a record milestone for global mobility. Driven by rising middle classes, affordable low-cost carriers, and expanding connectivity, international flights are fueling most of the growth. Rapid gains are projected in Asia-Pacific, Africa, and Latin America, while Europe and North America show steadier increases. This surge underscores aviation’s critical role in tourism, economic growth, and cross-border connectivity worldwide.