Record Amtrak Ridership Puts Pressure on Fleet Capacity

USA: Amtrak’s record 34.5 million trips in FY 2025 are adding pressure to fleet capacity as NextGen Acela expands in service and Airo trainsets move through testing.

Record demand meets a constrained fleet

Amtrak carried 34.5 million customer trips in FY 2025, up 5.1% from the previous fiscal year, while network capacity increased 4.3%. The railroad also invested $5.5 billion in major capital and repair projects, 25% more than in the prior year. Those gains came while Amtrak was managing an aging fleet and a limited supply of reserve equipment when trains are unavailable.

The equipment constraint is visible in Illinois. Amtrak board member Chris Koos said maintenance issues affecting older equipment, along with continued fine-tuning of Venture cars and Charger locomotives, weighed on state results. On the City of New Orleans route, Amtrak found significant wheel damage on three trainsets and changed 31 wheelsets in New Orleans and Chicago, plus one train’s worth of axles in Jackson, Mississippi. The cause had not been identified in the supplied report.

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Airo starts replacing older regional equipment

Amtrak plans to deploy 83 Airo trainsets across Amtrak Cascades, Northeast Regional and other short- and mid-distance routes. The program was designed to replace older Amfleet I, Metroliner cab and Cascades equipment while supporting service growth.

For Amtrak Cascades, all eight Airo trainsets are expected to finish manufacturing in 2026. The sixth set departed for testing in July, and the first trains are scheduled to enter Cascades service later in 2026. The first Northeast Regional Airo trainset completed manufacturing in May, with revenue service expected to begin in 2027.

NextGen Acela is already adding capacity

NextGen Acela is further along. Amtrak launched the new fleet in August 2025 and plans to introduce 28 trainsets through 2027. The new trains provide 27% more seats per departure than the previous Acela fleet.

By July 6, 2026, 13 NextGen Acela trainsets were in service, supporting 32 weekday Acela trips compared with 26 weekday trips before the new fleet was introduced. Amtrak said additional trainsets would continue to join the fleet in the following months.

The fleet programs therefore address the capacity problem on different timelines. NextGen Acela is already increasing seats and scheduled trips on the Northeast Corridor, while Airo is still moving through testing and initial deployment. That leaves Amtrak balancing record demand and service growth against the availability of older equipment until more of the replacement fleet enters revenue service.