The average train between Stamford and Union Station takes 4h 55m and the fastest train takes 3h 57m. There is a train service every few hours from Stamford to Union Station. The journey time may be longer on weekends and holidays; use the search form on this page to search for a specific travel date.
Trains run hourly between Stamford and Union Station. The earliest departure is at 7:04 AM in the morning, and the last departure from Stamford is at 11:00 PM which arrives into Union Station at 9:01 AM. All services require a transfer, and take on average 4h 55m. The schedules shown below are for the next available departures.

4h 18m • 1 change

4h 6m • 1 change

3h 57m • 1 change

4h 33m • 1 change

4h 18m • 1 change

4h 6m • 1 change

3h 57m • 1 change

4h 33m • 1 change

4h 18m • 1 change

4h 6m • 1 change

3h 57m • 1 change

4h 33m • 1 change

4h 59m • 1 change

4h 6m • 1 change

5h • 1 change

4h 3m • 1 change
Want to know about travelling from Stamford to Union Station? We have put together a list of the most frequently asked questions from our users such as: What is the cheapest mode of transport? What is the quickest option? How much do tickets usually cost? and many more.
No, there is no direct train from Stamford to Union Station. However, there are services departing from Stamford station and arriving at Union Station station via Ny Moynihan Train Hall At Penn Station station. The journey, including transfers, takes approximately 4h 55m.
Stamford to Union Station train services, operated by Amtrak, depart from Stamford Amtrak Station.
Stamford to Union Station train services, operated by Amtrak, arrive at Washington Union Station.
Book your Stamford to Union Station train tickets online with Amtrak and Amtrak Acela.
The distance between Stamford and Union Station is 380.4 km. The road distance is 416 km.
You can take a train from Stamford Amtrak Station to Washington Union Station via Ny Moynihan Train Hall At Penn Station in around 4h 7m.