Amtrak Launches 83-Train Airo Fleet for US Network by 2026

Amtrak and Siemens Mobility Unveil Airo Fleet for National Network Renewal

Amtrak, in collaboration with manufacturer Siemens Mobility, officially presented the first trainset of its Airo fleet in Washington, D.C. The procurement program encompasses a total of 83 new trains scheduled to enter service starting in 2026. This fleet renewal will serve multiple routes across the Amtrak national network, including services on the Northeast Corridor and the Pacific Northwest.

Program Details and Fleet Specifications

The Airo program is a core component of Amtrak’s rolling stock modernization initiative, executed with U.S. Department of Transportation oversight. The 83 trainsets are being constructed by Siemens Mobility. While the total investment value of the contract has not been publicly disclosed, the program is positioned as a foundational element in upgrading passenger rail services on key intercity and state-supported corridors. The new equipment is intended to replace aging rolling stock, some of which has been in service for several decades, thereby aiming to improve mechanical reliability and operational efficiency.

The introduction of the Airo fleet follows the launch of the NextGen Acela trains, which are scheduled to enter service on the Northeast Corridor in August 2025. This two-pronged strategy separates the modernization of high-speed Acela services from the renewal of the broader intercity passenger fleet. The Airo trains are designed for a different operational profile than the Acela, focusing on regional and medium-distance routes with varying infrastructure and service patterns. Specific technical details and performance specifications for the Airo fleet were not provided at the unveiling event.

Deployment Schedule and Route Allocation

The rollout of the Airo fleet is structured in phases, targeting specific corridors based on operational needs. The first commercial service is planned for the Amtrak Cascades route, which connects Eugene, Oregon; Portland, Oregon; Seattle, Washington; and Vancouver, Canada. Eight multiple units are allocated for this corridor, with a projected completion and entry-into-service date in 2026.

Following the Pacific Northwest deployment, the next phase will focus on the Northeast Regional service. Trainsets for this route are scheduled to complete production and begin testing in 2026, with a target for commercial operation in 2027. Subsequently, the Airo fleet will be deployed across a wide range of services, including the Keystone Service, Palmetto, Pennsylvanian, Vermonter, and Empire Service. The program’s scope covers a mix of federally supported long-distance routes and state-supported corridors, reflecting a broad-based fleet replacement strategy.

Strategic Context and Market Impact

This fleet procurement aligns with the national rail strategy outlined in the Infrastructure Investment and Jobs Act (IIJA), which allocated substantial federal funding for modernizing and expanding the U.S. passenger rail network. The Airo program directly addresses a critical challenge for Amtrak: the advanced age and increasing maintenance costs of its legacy fleet. By replacing older equipment, Amtrak aims to improve service reliability, reduce operational delays caused by mechanical failures, and enhance passenger experience.

The selection of routes for the Airo fleet indicates a strategic focus on corridors with demonstrated passenger growth potential. Upgrading equipment on the Northeast Regional, Amtrak’s busiest route, and key state-supported services like the Cascades and Empire Service, is critical to retaining and growing ridership. For the manufacturer, Siemens Mobility, this contract solidifies its position as a primary supplier of passenger rail rolling stock in the North American market, building on previous orders for locomotives and trainsets from Amtrak and other regional operators.

Next Steps

The first eight Airo units for the Amtrak Cascades route are scheduled for completion and commissioning in 2026. Concurrently, trainsets designated for the Northeast Regional service will advance through production and enter the required testing and certification phase ahead of their planned 2027 commercial launch.