# Washington Dulles Airport expansion > Live situation record from CLSTR: https://clstr.news/situations/washington-dulles-airport-expansion > Updated: 2026-08-22T14:56:44.000Z. Sources: 105. Developments: 7. In late July 2026, President Donald Trump announced a $22–$22.5 billion redesign of Washington Dulles International Airport, describing the current layout as “one of the worst airports anywhere in the world” and “a real mess.” The overhaul aims to add roughly five million square feet of space, including four new concourses, a fifth terminal, and a new Concourse E. A central feature is the replacement of the aging mobile-lounge people-movers with an underground, U-shaped Aerotrain system. The project includes a 15-story, 32,000-space parking garage adjacent to the main terminal, which could potentially become the largest garage in the world, surpassing the record held by the West Edmonton Mall in Canada. By mid-August 2026, the Metropolitan Washington Airports Authority (MWAA) moved forward with funding and planning. The board approved $15.5 billion to co-finance the renovation, which Jack Potter, CEO of the airport authority, noted will be funded primarily through municipal bonds rather than federal funds. Subsequently, the MWAA approved a $19.9 billion overhaul plan. This includes $6.2 billion for the main terminal reconstruction starting in late 2027 and $3.75 billion for underground tunnels and an automated passenger transportation system, with these specific upgrades expected to be completed by 2034. To fund $1.1 billion of the new transit system, airline boarding costs are projected to rise from $13 to between $60 and $65 by approximately 2038. The project will be largely financed through $14.2 billion in new municipal bonds, following $4.4 billion already approved by the authority. ## Claims - Construction could begin early next year. (disputed by 3 sources) - Construction is expected to occur in phases over several years, potentially beginning in spring 2027 while the airport remains operational. (disputed by 3 sources) - President Donald Trump announced a $22‑$22.5 billion plan to renovate Washington Dulles International Airport. (corroborated by 9 sources) - Funding will come mainly from municipal bonds issued by the Metropolitan Washington Airports Authority together with airline partners, not from federal funds. (corroborated by 5 sources) - The project will replace concourses, add gates, remove the people‑mover system, and install a new U‑shaped underground train. (corroborated by 5 sources) - Eero Saarinen's iconic main terminal will be preserved while a new 32,000‑spot parking garage and additional terminal space are added. (corroborated by 5 sources) - The project includes four new concourses and an expanded AeroTrain system, replacing the aging C and D concourses and adding a fifth terminal. (corroborated by 4 sources) - United Airlines will partner closely with MWAA and is a major stakeholder in the redevelopment. (corroborated by 4 sources) - The renovation will add more than 5 million sq ft of new or renovated space. (corroborated by 3 sources) - The project cost increased from an earlier estimate of about $7 billion to $22.5 billion. (corroborated by 3 sources) ## Timeline ### 2026-08-22: Washington Dulles Airport approves $19.9 billion overhaul plan Washington Dulles International Airport has approved a $19.9 billion overhaul, including a $6.2 billion terminal reconstruction and a new automated underground passenger transit system. 2 sources. https://clstr.news/cluster/washington-dulles-airport-approves-199-billion-overhaul-plan ### 2026-08-20: Dulles International Airport renovation receives $15.5 billion approval The Metropolitan Washington Airports Authority approved $15.5 billion for the renovation of Dulles International Airport, including new tunnels and the replacement of the current shuttle system. 4 sources. https://clstr.news/cluster/dulles-international-airport-renovation-receives-155-billion-approval ### 2026-08-17: Washington Dulles Airport board to vote on $19.9 billion overhaul plan The Metropolitan Washington Airports Authority will vote on a $19.9 billion overhaul of Washington Dulles International Airport, featuring terminal renovations and new underground tunnels through 2039. 2 sources. https://clstr.news/cluster/washington-dulles-airport-board-to-vote-on-199-billion-overhaul-plan ### 2026-08-12: Washington Dulles International Airport announces $22B modernization plan Washington Dulles International Airport has announced a $22 billion modernization plan, including a proposed 32,000-space parking garage that could become the largest in the world. 2 sources. https://clstr.news/cluster/washington-dulles-international-airport-announces-22b-modernization-plan ### 2026-08-02: Washington Dulles Airport $22.5 B Modernization Announced by Trump Trump unveiled a $22.5 billion modernization of Washington Dulles Airport, adding terminals, a new underground train, a 32,000‑spot garage, and preserving Saarinen’s main hall. Funding via MWAA bonds and United 6 sources. https://clstr.news/cluster/trump-announces-22-b-modernization-of-washington-dulles-airport ### 2026-07-30: Washington Dulles Airport to undergo $22‑billion renovation Trump unveiled a $22‑$22.5 billion Dulles Airport renovation funded by bonds and airlines, adding new concourses, a fifth terminal, expanded AeroTrain and parking, aiming to double capacity and create jobs. 20 sources. https://clstr.news/cluster/washington-dulles-airport-expansion-rises-to-20-bn-plus-project ### 2026-07-28: Washington Dulles Airport $22 B Renovation Unveiled Trump unveiled a $22‑22.5 B plan to revamp Dulles Airport, adding 5 M sq ft, new concourses, a 32,000‑space garage and an underground aerotrain, funded by airport bonds and airlines. 69 sources. https://clstr.news/cluster/trump-announces-225-b-overhaul-of-washington-dulles-airport --- Cite as: Washington Dulles Airport expansion. CLSTR, https://clstr.news/situations/washington-dulles-airport-expansion