SIGNALactive LAST UPDATE4 minutes ago SOURCES10 monitored Saturday · November 7, 2026
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United to Expand Washington Dulles Hub with $22.5B Terminal Redevelopment

United Airlines is accelerating its $22.5 billion redevelopment of Washington Dulles (IAD), adding 5 million square feet of terminal space and new concourses to support 24% seat growth

Multiple sources

What happened

  • Main Terminal and Concourse A: Expansion of the iconic terminal, reconfigured ticket counters, a new connector to Concourse A, and a 14-16 gate extension.
  • AeroTrain and Tunnels: Extension of the AeroTrain to new stations and a pedestrian tunnel linking the main terminal to all concourses.
  • Concourse E: Full build-out of the first phase opening this fall, to be renamed Concourse C.
  • Concourse D: A new domestic concourse south of the current Concourse E.
  • Concourse B: A new regional concourse on the site of the current Concourse C-D. The redevelopment will add approximately 5 million square feet of terminal and concourse space. United's seat count at IAD is set to jump 24% this year compared to 2019, second only to its growth at Denver International Airport (DEN)

United Airlines is significantly expanding its hub at Washington Dulles International Airport (IAD) through a $22.5 billion redevelopment project, which has been accelerated to begin immediately following a July 29 agreement. The project aims to replace dated facilities like Concourse C-D and mobile lounges with a new master plan. Key components include:

Sources add · 1

  • One Mile at a Time: Trump Unveils Washington Dulles Airport Transformation: Nice But Expensive! Washington Dulles International Airport (IAD) certainly leaves a lot to be desired when it comes to its terminal facilities

Sources cited · 2