The average train between Stony Brook and Groton takes 4h 52m and the fastest train takes 4h 20m. The train service runs several times per day from Stony Brook 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 5 times a day between Stony Brook and Groton. The earliest departure is at 4:58 AM at night, and the last departure from Stony Brook is at 5:00 PM which arrives into Groton at 9:53 PM. All services require a transfer at Jamaica and take an average of 4h 52m. The schedules shown below are for the next available departures.


4h 20m • 2 changes


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5h 6m • 2 changes
Want to know about travelling from Stony Brook 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 Stony Brook to Groton. However, there are services departing from Stony Brook station and arriving at Groton station via Jamaica. The journey, including transfers, takes approximately 4h 52m.
Stony Brook to Groton train services, operated by Long Island Rail Road, depart from Stony Brook station.
Stony Brook to Groton train services, operated by Long Island Rail Road, arrive at New London station.
The distance between Stony Brook and Groton is 100.9 km. The road distance is 291 km.
You can take a train from Stony Brook to New London via Jamaica, Penn Station, and Ny Moynihan Train Hall At Penn Station in around 5h 3m.