Acela 2251 Boston – Washington Union Station

View line Acela

Boston 07:10 → Washington Union Station 14:20 Sat, Sun 7 h 10 min · 12 stops Amtrak

Running now · updated 10:00

Between New Haven and Stamford Amtrak Station −6 min

Estimated arrival at Washington Union Station 14:20 · 109 km/h

  1. Boston07:10
  2. Route 128 Amtrak Station07:25
  3. New Haven09:21
  4. Stamford Amtrak Station10:21
  5. Ny Moynihan Train Hall At Penn Station11:10
  6. Newark11:34
  7. Washington Union Station14:20

Today it is running no worse than usual: typical arrival delay is +10 min; 22% of the last 9 runs arrived on time.

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On-time · 30 days
22%
2/9 runs under 3 min
RT coverage: 8 full · 1 partial · 0 no data
On-time · 90 days
22%
2/9 runs under 3 min
RT coverage: 8 full · 1 partial · 0 no data
Typical delay
+10min
Median at arrival, 90 days
30 days: +10 min
P90
+17min
9 in 10 runs arrive with less than this
30 days: +17 min

Last 30 days

Arrival delay at Washington Union Station, in minutes. One bar per run.

  • On time (<3 min)
  • 3–10 min
  • 10–30 min
  • 30+ min
  • Partial coverage
  • No data

Worst days

  • Sun 18 Oct Max en route +19 min · last fix heading to Washington Union Station +19 min
  • Sat 31 Oct Max en route +16 min · last fix heading to Washington Union Station +16 min
  • Sat 17 Oct Max en route +16 min · last fix heading to Washington Union Station +16 min
  • Sun 1 Nov Max en route +13 min · last fix heading to Washington Union Station +13 min
  • Sun 25 Oct Max en route +12 min · last fix heading to Washington Union Station +10 min

Distribution · 90 days

9 runs with a known final delay. On time = under 3 min, the same cut the map uses.

  • Early 11% · 1
  • On time 11% · 1
  • 3–10 min 22% · 2
  • 10–30 min 56% · 5
  • 30+ min 0% · 0

On-time by weekday

  • — M n=0
  • — T n=0
  • — W n=0
  • — T n=0
  • — F n=0
  • 40% S n=5
  • 0% S n=4

Stops and timetable

Timetable of the latest run from the operator’s GTFS (12 stops).

Last 90 days, 9 runs. At intermediate stops it is an estimate from the delay at origin and destination. Delays over 2 h count as “> 2 h”: our data does not measure them exactly.

StopSched.Usually 9 days in 10Today
Boston
07:104 min early +4 minPassed
Boston
07:15≈ 4 min early ≈ +1 minPassed
Route 128 Amtrak Station
07:25≈ 4 min early ≈ +1 minPassed
Providence
07:47 / 07:48≈ 3 min early ≈ +2 minPassed
New Haven
09:21 / 09:31≈ +2 min ≈ +4 minPassed
Stamford Amtrak Station
10:21 / 10:23≈ +3 min ≈ +6 minNext
Ny Moynihan Train Hall At Penn Station
11:10 / 11:20≈ +5 min ≈ +9 min
Newark
11:34 / 11:35≈ +6 min ≈ +10 min
Philadelphia
12:34 / 12:36≈ +8 min ≈ +12 min
Wilmington
12:54 / 12:56≈ +9 min ≈ +13 min
Baltimore Penn Station
13:43 / 13:45≈ +10 min ≈ +15 min
Washington Union Station
14:20+12 min +17 min

Each run is closed into train_runs (country, train number, service day) from the live positions. Final delay = last delay seen. Partial coverage: the feed stopped before the final stop (last value used, hatched in the chart). No data: a run without any valid delay; counts as neither on time nor late. Data collected since 10 July 2026.

Will I make my connection?

Pick where you get off and how many minutes you have until your next train. We work it out from what this train did over the last 90 days.

Include the time to change platforms. It is an estimate from past data, not a guarantee. Days more than 2 h late count as a missed connection.

Recent runs

DateLast stopFinalMax
Sat 7 NovStamford Amtrak Station 09:59Partial coverage−6 min+6 min
Sun 1 NovWashington Union Station 15:21+13 min+13 min
Sat 31 OctWashington Union Station 15:21+16 min+16 min
Sun 25 OctWashington Union Station 15:18+10 min+12 min
Sat 24 OctWashington Union Station 15:15+8 min+9 min
Sun 18 OctWashington Union Station 15:26+19 min+19 min
Sat 17 OctWashington Union Station 15:20+16 min+16 min
Sun 11 OctWashington Union Station 15:14+7 min+9 min
Sat 10 OctWashington Union Station 15:080 min+9 min