Acela guide: Boston–New York–Washington on Amtrak's fastest train

By the TrainsNews rail expert · updated 15 October 2026

Acela is America's fastest train: it links Boston, New York and Washington along the Northeast Corridor, with a top speed of 160 mph (257 km/h) and the fastest New York–Washington runs taking about 3 hours. Since August 2025, the new NextGen Acela trains built by Alstom have been replacing the original fleet: 16 of the 28 new trains were in service by late August 2026. Here is how to ride it.

Acela at a glance

NextGen Acela: what's new

• In service since 28 August 2025, with 5 trains at launch, 13 in July 2026 and 16 by the end of August 2026. Amtrak expects the full fleet of 28 through 2027.
• More seats: 386 per train, about 27% more than the original Acela.
• Faster: 160 mph instead of 150 mph.
• Same fares as the original Acela.
• More trains: 32 weekday trips in July 2026, with weekday departures up 37% from 31 August 2026 compared with before the launch.

Both fleets still run side by side, so check which train you are booked on in the Amtrak app.

Stations

Acela calls at Boston South Station, Back Bay, Route 128, Providence, New Haven, Stamford, New York Penn Station (including Moynihan Train Hall), Newark Penn, Metropark (some trains), Philadelphia William H. Gray III 30th Street, Wilmington, Baltimore Penn, BWI Airport and Washington Union Station. Some trains only drop off or pick up at certain stations.

Fares

Acela has no Coach class: you choose Business or First. Prices change with demand, so book early.

• Flex: fully refundable.
• Value: 70% refunded; no changes.
• Sale: 50% refunded; no changes.
• 24-hour rule: any reserved ticket can be cancelled for a full refund within 24 hours of purchase, if the train has not left.
• No-show: you lose the whole segment.

Indicative prices; the fare shown on amtrak.com at booking applies.

Luggage and on board

• Carry-on: one personal item (25 lb, 14 × 11 × 7 in) and two carry-ons (50 lb each, 28 × 22 × 14 in) per passenger.
• Extra bags: $20 each, up to two.
• Business: 343 seats in a 2-2 layout on NextGen Acela.
• First: 43 seats in a 2-1 layout, with at-seat meals.
• Café Acela: self-service grab-and-go food, with no seating.
• Wi-Fi and power: free 5G Wi-Fi, power and USB at every seat.
• Quiet Car: available, and on Acela you can reserve a seat in it.

What's next on the Northeast Corridor

• Portal North Bridge (New Jersey): the new bridge opened to service on 13 March 2026.
• Hudson Tunnel Project (Gateway): a new tunnel under the Hudson River, targeted for 2035, before the old North River Tunnel is rebuilt.
• Connecticut River Bridge: a new movable bridge to replace the 1907 span by 2031.
• Frederick Douglass Tunnel (Baltimore): replaces the 153-year-old B&P Tunnel; boring starts in 2028, opening targeted for 2036.

An engineer's view

Acela runs on a 19th- and 20th-century corridor, and that limits average speed to about 70 mph between Boston and Washington. Three different power systems are used: 25 kV 60 Hz from Boston to New Haven, 12.5 kV 60 Hz on the Metro-North section to New York, and 12 kV 25 Hz from New York to Washington, where pre-1935 catenary without constant tension caps speed at about 135 mph.

Safety is ensured by ACSES, Amtrak's positive train control system, which enforces speed limits and stop signals; it was completed on all Amtrak-owned track in December 2015. Tight curves in Connecticut, old movable bridges and the century-old tunnels at Baltimore and under the Hudson all slow the trains.

The Avelia Liberty is designed to tilt up to 6.3° in curves (4.2° on the original Acela), to go faster without discomfort. But according to Amtrak's Inspector General, the tilt system was not yet in use in July 2026, and the report also noted mechanical problems during the fleet's first year. The real gains will come from the infrastructure projects above.

Frequently asked questions

How fast is the Acela?

Up to 160 mph (257 km/h), on about 40 miles of track in Rhode Island, Massachusetts and New Jersey.

How long is Acela from New York to Washington?

About 3 hours on the fastest trains.

Is there Wi-Fi on Acela?

Yes, free 5G Wi-Fi, plus power and USB at every seat.

Is there a cheaper class on Acela?

No. Acela sells Business and First only; the Northeast Regional is the cheaper train.

Can I get a refund on an Acela ticket?

Flex fares are fully refundable; Value fares refund 70% and Sale fares 50%.

Are all Acela trains new?

Not yet: new and original trains run side by side until the full NextGen fleet is delivered.

Key takeaways

• Boston–New York–Washington at up to 160 mph; New York–Washington in about 3 hours.
• Business and First only; take the Northeast Regional to pay less.
• Book Flex if your plans may change.

Read also

• Brightline: Miami to Orlando by train
• Paris to Lyon by train
• All our train travel guides

For rail enthusiasts

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Sources: Amtrak, NextGen Acela fleet continues to grow (6 July 2026); Amtrak, NextGen Acela first anniversary (28 August 2026); Amtrak, refunds and cancellations; Amtrak, carry-on baggage; Amtrak, Quiet Car; Amtrak, Connecticut River Bridge (27 October 2025); Railway Age, NextGen Acela inaugural run (August 2025); 6sqft, launch fares (26 August 2025); Upgraded Points, Business class review (February 2026); Mass Transit, Amtrak OIG report (21 July 2026); Mass Transit, Hudson Tunnel Project (February 2025); Underground Infrastructure, Frederick Douglass Tunnel (30 July 2026); Acela. Information checked on 15 October 2026.

Photo: RedPottery18, CC BY 4.0, via Wikimedia Commons

Written with AI assistance from the official sources cited, reviewed by the TrainsNews editorial team. Spotted an error? contact@trainsnews.com — Our AI policy