The average train between Boston and Cos Cob takes 3h 35m and the fastest train takes 3h 3m. There is a train service every few hours from Boston to Cos Cob. 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 Boston and Cos Cob. The earliest departure is at 5:00 AM in the morning, and the last departure from Boston is at 7:55 PM which arrives into Cos Cob at 12:15 AM. All services require a transfer at Stamford Amtrak Station and take an average of 3h 35m. The schedules shown below are for the next available departures.

3h 53m • 1 change

3h 28m • 1 change

3h 12m • 1 change

3h 28m • 1 change

3h 8m • 1 change

3h 14m • 1 change

3h 28m • 1 change

3h 13m • 1 change

3h 8m • 1 change

3h 14m • 1 change

3h 28m • 1 change

3h 13m • 1 change

3h 8m • 1 change

3h 14m • 1 change

3h 28m • 1 change

3h 13m • 1 change
Want to know about travelling from Boston to Cos Cob? 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 Boston to Cos Cob. However, there are services departing from Boston station and arriving at Cos Cob station via Stamford Amtrak Station station. The journey, including transfers, takes approximately 3h 35m.
Boston to Cos Cob train services, operated by Amtrak Acela, depart from Boston station.
Boston to Cos Cob train services, operated by Amtrak Acela, arrive at Stamford Amtrak Station.
The distance between Boston and Cos Cob is 257.2 km. The road distance is 320 km.
Amtrak Northeast Regional operates a train from Boston to Stamford Amtrak Station every 3 hours. Tickets cost $27–280 and the journey takes 3h 12m. Amtrak Acela also services this route every 4 hours.