The average train between Norwalk and Groton takes 2h 18m and the fastest train takes 1h 52m. The train service runs several times per day from Norwalk to Groton. 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 every 2 hours between Norwalk and Groton. The earliest departure is at 12:34 AM at night, and the last departure from Norwalk is at 8:38 PM which arrives into Groton at 10:30 PM. All services require a transfer, and take on average 2h 18m. The schedules shown below are for the next available departures.

1h 55m • 1 change

2h 14m • 1 change

2h 17m • 1 change

2h 16m • 1 change

2h 36m • 1 change

1h 55m • 1 change

2h 14m • 1 change

2h 17m • 1 change

2h 36m • 1 change

1h 55m • 1 change

2h 14m • 1 change

2h 17m • 1 change

2h 36m • 1 change

1h 55m • 1 change

2h 14m • 1 change

2h 17m • 1 change
Want to know about travelling from Norwalk to Groton? 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 Norwalk to Groton. However, there are services departing from Norwalk station and arriving at Groton station via New Haven. The journey, including transfers, takes approximately 2h 18m.
Norwalk to Groton train services, operated by Metro-North Railroad (MNR), depart from East Norwalk station.
Norwalk to Groton train services, operated by Metro-North Railroad (MNR), arrive at New London station.
The distance between Norwalk and Groton is 114.3 km. The road distance is 130 km.
You can take a train from East Norwalk to New London via New Haven in around 2h 31m.