United Airlines announced that it is partnering with the Metropolitan Washington Airports Authority and the US Department of Transportation (DOT) on a more than $20 billion capital investment program aimed at transforming Washington Dulles International Airport (IAD) over the next decade.
Announced July 29, 2026, the plan calls for more than five million square feet of new or renovated space, including modernized concourses, upgraded ticketing areas, and a renovated Main Terminal, while preserving architect Eero Saarinen’s original terminal design.
The Airports Authority previously had $7 billion allocated for modernization work at the airport before this new investment was announced.
A bold new vision for Dulles International is taking flight. ✈️ A historic partnership and $20 billion investment will transform the airport into a world-class international gateway, expanding air service and driving billions in economic growth. Learn more https://t.co/GxakWCn71n pic.twitter.com/tpqTafv8cj
— Metropolitan Washington Airports Authority (@MWAAHQ) July 29, 2026
United’s long-term bet on Dulles
Airports Authority President and CEO Jack Potter said the new construction builds on a multiyear Master Plan developed with the airport’s airline partners, describing the effort as one that will modernize the region’s main international gateway. He credited the Trump administration for accelerating the pace and scope of the plans, adding that the Authority looks forward to building facilities it expects will become “a source of pride for our nation.”
United CEO Scott Kirby framed the project as an extension of the airline’s long-term investment in its Dulles hub, calling the airport the gateway that connects the nation’s capital to the world. He said the transformation is meant to deliver “the world-class airport experience” that employees, customers, and travelers deserve, and thanked the Trump administration and the Department of Transportation for supporting the project.
US Transportation Secretary Sean Duffy also weighed in on the announcement, saying the goal is to build an international gateway he described as worthy of the country. Duffy specifically pointed to plans to replace the airport’s aging mobile lounge system and outdated concourses with what he called a state-of-the-art facility, framing it as part of a broader effort tied to the administration’s work in the capital region.
What travelers can expect
According to the announcement, the transformation will touch nearly every part of the airport experience. Plans include upgraded parking and check-in areas, more efficient security screening, and new or modernized concourses, including a full replacement of the current C/D Concourse, designed to accommodate more and larger aircraft flying to more destinations.
United said that passengers can also expect additional gates with more spacious seating, dedicated work areas, and expanded amenities.
A new AeroTrain system and a central walking tunnel are intended to improve movement between the terminal, concourses, and gates, eventually replacing the airport’s mobile lounge vehicles altogether.
The project also includes a walkable connection to a new, larger US Customs facility, upgraded baggage handling systems, and additional concessions and lounge space, including what’s expected to be one of the largest United Polaris lounges in the world.
Some modernization efforts at Dulles are already in motion. A new Concourse E, featuring 14 additional United gates, is expected to open in late 2026, giving the airline more capacity for international routes along with direct access to the airport’s AeroTrain system and new passenger lounges.