Denver International Airport announced plans to construct underground passenger walkways connecting its major concourses. The project, according to the announcement, aims to streamline passenger movement, reduce transit times between terminals and significantly enhance the airport experience for millions of travelers each year. Construction is scheduled to begin later this year, with completion expected by 2029.

The airport is one of the busiest in the country, serving over 70 million passengers annually. Its sprawling layout, with multiple distant concourses, often results in long transit times for connecting passengers. Currently, travelers rely on shuttle buses and the automated people mover system, which can become crowded during peak hours and occasionally incurs delays.

The underground walkways will provide a weather-protected, direct route between Concourses A, B and C, cutting walking times by up to 30% and reducing dependence on shuttle services, according to the announcement.

The walkways will span approximately two miles, equipped with moving sidewalks, energy-efficient LED lighting and real-time flight information displays. The design prioritizes accessibility, with ramps and elevators to accommodate travelers with mobility challenges.