In 2026, Chicago holds the title of the city with the most commercial runways at a single airport, with Chicago O'Hare International Airport (ORD) featuring a staggering eight runways. This massive configuration is the result of a multi-year "O'Hare Modernization Program" designed to reduce delays by creating a series of parallel runways that can handle simultaneous landings and takeoffs even in the city's notorious "windy" weather. If you look at "Metropolitan Area" systems, London is the busiest city airport system in the world (with six commercial airports), but its main hub, Heathrow, only has two runways. Other runway-heavy contenders include Dallas/Fort Worth (DFW) with seven runways and Denver (DEN) with six. From a global perspective, having eight runways allows O'Hare to maintain a higher flight frequency than almost any other hub, making it a critical "super-node" in the global aviation network. While airports like Dubai and Atlanta handle more total passengers, the sheer tarmac capacity of Chicago's O'Hare makes it the undisputed leader in runway count for 2026.