DCA Unveils $835 Million Terminal 1 Expansion, Adding Nine-Gate Concourse for Southwest Airlines

DCA Advances Terminal 1 Modernisation

Ronald Reagan Washington National Airport (DCA) is advancing plans for an $835 million expansion of its Terminal 1, according to environmental documents released by the Metropolitan Washington Airports Authority (MWAA) in July.

The project encompasses a new nine-gate concourse and a dedicated "processor" building for check-in and baggage claim, aiming to significantly modernise the airport's infrastructure. MWAA financial documents indicate the facility could commence operations as early as 2031. This development targets a substantial upgrade, particularly for airlines operating from Terminal 1.

Southwest Airlines, a primary user of Terminal 1, is expected to be a key beneficiary of the new concourse. Air Canada and Frontier Airlines are also slated to use the new gates. A spokesperson for Southwest Airlines stated the carrier is collaborating with the airport authority on the project, expressing anticipation for its completion.

Replacing 'The Banjo' and Streamlining Passenger Flow

The planned "Terminal 1 Replacement Gates Facility" will supersede the existing midcentury concourse and rotunda, which dates to 1970 and is known for its "banjo" shape. The new processor building is designed to streamline traveller entry, allowing check-in and bag drop in a central location between Terminals 1 and 2, accessible from the Metro.

This contrasts with the current setup where check-in occurs further from transport links. PGAL, the architectural firm responsible for DCA's Concourse E and the ongoing Concourse E at Dulles International Airport (IAD), will design the new concourse. The expansion plans also allocate 10,000 square feet for a new airline lounge, the operator of which is yet to be named. Southwest executives have previously indicated interest in developing a lounge network.

Reorganising Terminal 1 and Preserving History

The project will fundamentally alter how passengers navigate Terminal 1. Under the proposed plan, travellers will use the new multilevel processor building, then proceed to the existing south checkpoint in Terminal 2.

From there, they will walk through an enlarged corridor, past the B gates, and through the landmarked 1941 lobby — which will be brought inside the security perimeter — to reach the new concourse. MWAA planning documents outline a walking distance of approximately 2,700 feet from check-in to the furthest gate.

The authority states the expansion will provide modern passenger amenities while respecting the historic character of the 1941 terminal building. Upon completion, the "banjo" concourse and other non-landmarked additions to the original terminal will be dismantled.

Broader MWAA Development Strategy

This Terminal 1 redevelopment follows closely on other significant infrastructure projects overseen by MWAA, demonstrating a consistent effort to upgrade regional air travel facilities. Just five years prior, DCA concluded its $1 billion Project Journey. That initiative introduced a new 14-gate concourse, known as the E Gates, which replaced the previously disliked Gate 35X.

Project Journey also integrated two new security checkpoints, allowing the National Hall main concourse to be situated within the secure area, greatly improving passenger flow. Concurrently, MWAA is also pursuing a substantial $22.5 billion redevelopment of Dulles International Airport (IAD), another key airport serving the Washington, D.C. area.

This larger IAD project is supported by the Trump administration and United Airlines, indicating a broad, multi-faceted approach to aviation infrastructure investment in the region.

Implications for Travellers and Industry

For travellers using DCA, this expansion signifies a considerable upgrade in convenience and facilities, particularly for those flying with Southwest, Air Canada, or Frontier from Terminal 1. The reorganisation of check-in and security processes aims to reduce congestion and improve passenger flow, moving these functions closer to public transport links such as the Metro.

The inclusion of a new airline lounge also suggests enhanced comfort options for premium passengers or frequent flyers, especially if Southwest opts to establish its first lounge here, aligning with their executives' previous statements on developing a lounge network.

Industry observers will watch for further details on the lounge operator and how the new concourse integrates with broader airline strategies, particularly Southwest's long-term network plans, as the 2031 opening approaches. This investment demonstrates MWAA's commitment to enhancing airport capacity and passenger services in the Washington D.C. metropolitan area.